Old position I posted a while back

[Lyudmil Tsvetkov]

a4 is a good find.

I did not see it, not my SF was so kind to point to it.

after a forced line a4 ba4 ba4 Bd5 Qe8 Ba8 Ra8:

[d]r3q2k/5p1p/5P2/2p1B2Q/pb6/6P1/5P1P/3R2K1 w - - 0 6

we get here, which is most certainly a draw

so, probably, unless Andrew finds some improvement for white, the position is a draw, unless Bf4 is stronger and wins, which I don't very much believe.

probably, big white advantage, but still a draw, black just holding.

in the actual game, featuring 2400 elo players(was it correspondence?), black lost in some 6 moves or so...

seemingly, our forum is much better than those correspondence players.

I think I did did find an improvement (with my computer's assistance of course) in your 25...a4 26.ba4 ba4 27.Bd5 Qe8 28.Ba8 Ra8 line for white, on move 28, how about trying 28. Kg2! instead of 28. Bxa8.
28.Kg2! prevents the black rook on d8 from capturing the white rook on d1 with check and therefore threatens the very nasty 29.Bxf7!


position after 28.Kg2!

[d]r2rq2k/5p1p/5P2/2pBB2Q/pb6/6P1/5PKP/3R4 b - - 0 28


In this postion here is what Stockfish says on my computer so far (again eval is steadily climbing slowly):

New game
r2rq2k/5p1p/5P2/2pBB2Q/pb6/6P1/5PKP/3R4 b - - 0 1

Analysis by Stockfish 190817 64 BMI2:

28...Rab8 29.Bxf7 Qc6+ 30.Bd5 Rxd5 31.Qf3 Rf8 32.Rxd5
+- (3.25) Depth: 7/8 00:00:00 15kN
28...c4 29.Bxf7 Qc6+ 30.Bd5 Rxd5 31.Qf3 h6 32.Rxd5 Rf8
+- (3.25) Depth: 8/9 00:00:00 26kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Ra7 Qg6
+/= (0.62) Depth: 9/14 00:00:00 61kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Qe2 Bf8 35.Rc7 Qg6 36.Qc4
+/- (1.42) Depth: 10/15 00:00:00 77kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5
+- (2.42) Depth: 11/34 00:00:00 341kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3
+- (2.52) Depth: 12/34 00:00:00 428kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Ra7 Kg8 38.Ra4 Qxf3+ 39.Kxf3 Rd5 40.g4 h5 41.Ke4
+- (2.41) Depth: 13/34 00:00:00 533kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Ra7 Kg8 38.Ra4 Qxf3+ 39.Kxf3 Rd5 40.Rg4+ Kf8 41.h4
+- (2.40) Depth: 14/34 00:00:00 629kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.g4 Kh7 41.h4 Ra5 42.Rf5 Ra3 43.h5
+- (2.55) Depth: 15/34 00:00:00 754kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.g4 Kh7 41.h4 Ra5 42.Rf5 Ra3 43.h5 Ra2 44.Rc5
+- (2.55) Depth: 16/34 00:00:00 876kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.g4 Kh7 41.h4 Ra5 42.Rf5 Ra3 43.Kh2 Kg8 44.h5 Ra4 45.f4 Ra2+ 46.Kg1
+- (2.76) Depth: 17/42 00:00:00 1091kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Ra4 Qxf3+ 38.Kxf3 Rd6 39.Rf4 Kh7 40.Rf5 Rd3+ 41.Kg4 Kg6 42.h4 Rd4+ 43.f4
+- (2.34) Depth: 18/42 00:00:00 1551kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kh7 41.Rf5 Ra4 42.Kh3 Ra3 43.Kg4 Rc3 44.Kh5 Ra3 45.g4 Rh3 46.f3 Rg3 47.g5 hxg5 48.hxg5
+- (3.07) Depth: 19/42 00:00:00 1841kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Rb3 43.Kg4 Rb4+ 44.Kh5 Kh7 45.g4 Rb2 46.Rf4 Rd2
+- (3.17) Depth: 20/46 00:00:00 3027kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Rb3 43.Kg4 Rb4+ 44.Kh5 Kh7 45.g4 Rb2 46.Rf4 Rd2 47.g5
+- (3.17) Depth: 21/46 00:00:00 3148kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Rb3 43.Kg4 Rb4+ 44.Kh5 Kh7 45.g4 Rb2 46.Rf4 Rd2 47.g5 hxg5 48.hxg5 Kg8 49.f3
+- (3.17) Depth: 22/46 00:00:00 3240kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Ra4 Qxf3+ 38.Kxf3 Rd6 39.g4 Rxf6+ 40.Rf4 Ra6 41.Rxf7 Ra3+ 42.Kg2 h5 43.g5 Kg8 44.Rf4
+- (2.42) Depth: 23/46 00:00:00 4919kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Ra6 43.Kg4 Kh8 44.f3 Kh7 45.Kh3 Ra1
+- (3.00) Depth: 24/46 00:00:00 5328kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Rb3 43.Kg4 Rb2 44.Kh5 Kh7 45.g4 Rc2 46.Rf4 Re2 47.g5 hxg5 48.hxg5 Kg8 49.Kh6 Re1 50.Rh4
+- (3.07) Depth: 25/56 00:00:00 5971kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rd6 40.Rf4 Ra6 41.Rf5 Ra4 42.h4 Rb4 43.Kh3 Rb3 44.Kg4 Kh7 45.Kh5 Rb2 46.Kg4 Rb7
+- (2.85) Depth: 26/56 00:00:00 8015kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.g4 Kh7 41.h4 Ra5 42.Rf5 Ra3 43.Kh2 Kg8 44.f3 Kh7 45.h5 Kg8 46.f4 Ra2+ 47.Kg1 Ra3 48.Kf1 Ra2 49.g5 hxg5 50.fxg5 Rh2 51.g6 Rh4 52.Ke2
+- (3.25) Depth: 27/56 00:00:00 11416kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra3 42.Kh3 Rb3 43.Kg4 Kh7 44.Kh5 Rb4 45.g4 Rb2
+- (2.69) Depth: 28/56 00:00:00 13751kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.Rf5 Ra4 41.h4 Kh7 42.Kh3 Ra3 43.Kg4 Rb3 44.Kh5 Rb4 45.g4 Rb2 46.g5 hxg5 47.hxg5 Re2
+- (2.42) Depth: 29/56 00:00:00 19334kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rd6 40.Rf4 Ra6 41.g4 Kh7 42.h4 Ra5 43.Rf5 Ra3 44.Rd5 Ra4 45.Kg3 Ra3+ 46.Kf4 Kg6 47.Rf5 Kh7 48.Ke4 Ra4+ 49.Kf3 Rc4 50.Kg3 Rc3+ 51.Kh2 Ra3 52.Kg2 Rb3 53.h5 Kg8 54.f4 Rb2+ 55.Kg3 Rb3+ 56.Kf2 Rb2+ 57.Ke3 Rb6
+- (3.25) Depth: 30/59 00:00:01 30989kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.g4 Ra4+ 45.Kf3 Ra3+ 46.Kf4 Ra4+ 47.Kg3 Ra3+ 48.Rf3 Ra4 49.Rd3 Kh7 50.Rd5 Ra3+ 51.Kf4 Kg6 52.Rf5 Kh7 53.Ke4 Ra4+ 54.Kf3 Rc4
+- (3.25) Depth: 31/59 00:00:01 33039kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.g4 Ra4+ 45.Kf3 Ra3+ 46.Kf4 Ra4+ 47.Kg3 Ra3+ 48.Rf3 Ra5 49.Kh3 Kh7 50.Rf5
+- (3.24) Depth: 32/59 00:00:01 34359kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qb5 36.Qxa3 Qc6 37.Qf3 Rd6 38.Rf4 Qxf3+ 39.Kxf3 Ra6 40.g4 Kg8 41.Kg2 Rb6 42.Kg3 Ra6 43.Kf3 Ra3+ 44.Kg2 Ra6 45.Rf5 Kf8 46.g5 Kg8 47.h4 h6 48.f4 hxg5 49.fxg5 Kh7 50.h5
+- (3.24) Depth: 33/59 00:00:01 36467kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rb5 Ra6 45.Kf5 Ra3 46.f4 Rxg3 47.Rb7 Kg8 48.Rb8+ Kh7 49.Rf8 Ra3 50.Rxf7+ Kg8 51.Rg7+ Kf8
+- (3.17) Depth: 34/59 00:00:01 38972kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rg5 40.Rf4 Rg8 41.h4 Rd8 42.Rf5 Rd4 43.Kf3 Rd3+ 44.Ke4 Ra3 45.Rd5 Ra4+ 46.Kf5 Ra3 47.Kg4 Ra6 48.Rf5 Rd6 49.Kh5 Kh7 50.g4 Rd2 51.g5 hxg5 52.hxg5 Kg8 53.Rf4 Rd3 54.Rc4 Rh3+ 55.Kg4
+- (3.17) Depth: 35/59 00:00:01 39850kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Kh7 49.Rxh5+ Kg6 50.Rg5+ Kxf6 51.h5 Ra4+ 52.Kf3 Ra3+ 53.Kg4 Ra6 54.Rc5 Rb6 55.Ra5 Rb3 56.Rg5
+- (3.25) Depth: 36/59 00:00:01 48773kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Kh7 49.Rxh5+ Kg6 50.Rg5+ Kxf6 51.h5 Ra4+ 52.Kf3 Ra3+ 53.Kg4 Ra6 54.Rc5 Rb6 55.Ra5 Rb3 56.Rg5 Rc3
+- (3.25) Depth: 37/59 00:00:01 50150kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Kh7 49.Rxh5+ Kg6 50.Rg5+ Kxf6 51.h5 Ra4+ 52.Kf3 Ra3+ 53.Kg4 Ra6 54.Rc5 Rb6 55.Ra5 Rb3 56.Rg5 Rc3 57.h6
+- (3.25) Depth: 38/59 00:00:02 62401kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Kh7 49.Rxh5+ Kg6 50.Rg5+ Kxf6 51.h5 Ra4+ 52.Kf3 Ra3+ 53.Kg4 Ra1 54.Rc5 Ra8 55.Rf5+ Kg7 56.Kg5 Rf8 57.Rc5 f6+ 58.Kg4
+- (3.25) Depth: 39/61 00:00:02 67148kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Ra4+ 49.Kf3 Ra3+ 50.Kg2 Kh7 51.Rxh5+ Kg6 52.Rg5+ Kxf6 53.h5 Ra8 54.Kh3 Ke6 55.Kg4 Rc8 56.Re5+ Kf6 57.Rf5+ Ke6 58.Rg5 Rh8 59.Re5+ Kf6 60.Rc5 Ke7
+- (3.25) Depth: 40/65 00:00:02 69477kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Ra4+ 49.Kf3 Ra3+ 50.Kg2 Kh7 51.Rxh5+ Kg6 52.Rg5+ Kxf6 53.h5 Ra8 54.Kh3 Ke6 55.Kg4 Rc8 56.Re5+ Kf6 57.Rf5+ Ke6 58.Rg5 Rh8 59.Re5+ Kf6
+- (3.25) Depth: 41/65 00:00:02 77281kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Ra3 44.Rd5 Ra4+ 45.Ke5 Kg8 46.Kf5 Ra3 47.f4 h5 48.Ke4 Ra4+ 49.Kf3 Ra3+ 50.Kg2 Ra2+ 51.Kh3 Ra6 52.Rxh5 Rxf6 53.Rg5+ Kh7 54.Kg4 Ra6 55.Rc5 Kh6 56.Rc7 Rg6+ 57.Kf3 Kg7 58.g4
+- (3.25) Depth: 42/65 00:00:02 83316kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Rd6 44.g4 Kg8 45.Kf3 Rd3+ 46.Kg2 Kh7 47.h5 Rd2 48.Kf3 Kg8 49.Ke3 Ra2 50.f4 Ra3+ 51.Kd4 Ra4+ 52.Ke5 Ra3 53.Kd5 Ra6 54.Kc4 Rc6+ 55.Kb4 Rd6 56.g5 Kh7
+- (3.25) Depth: 43/65 00:00:03 97251kN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Rd2 44.g4 Rb2 45.f3 Rb4+ 46.Ke3 Rb6 47.h5 Re6+ 48.Kf2 Kg8 49.f4 Ra6 50.Ke3 Ra3+ 51.Kd4 Ra4+ 52.Ke5 Ra7 53.Kd5 Ra6 54.Kc5 Kh7 55.Kb5 Ra3
+- (3.25) Depth: 44/58 00:00:03 126MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rg5 39.Rf4 Rg8 40.h4 Rd8 41.Rf5 Rd4 42.Kf3 Rd3+ 43.Ke4 Rd2 44.g4 Rb2 45.f3 Rb4+ 46.Ke3 Rb6 47.Kf4 Kh7 48.h5 Kg8 49.Ke4 Ra6 50.f4 Ra4+ 51.Ke5 Rc4 52.Kd6 Rd4+ 53.Ke7 Re4+ 54.Re5 Rxf4 55.g5 hxg5 56.Rxg5+ Kh7 57.Kxf7 Ra4 58.Re5 Ra7+ 59.Kf8
+- (3.25) Depth: 45/78 00:00:04 134MN
28...Rxd5
+- (3.17 ++) Depth: 46/67 00:00:06 219MN
28...Rxd5
+- (3.10 ++) Depth: 46/67 00:00:07 260MN
28...Rxd5
+- (2.98 ++) Depth: 46/67 00:00:08 311MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Ra6 40.h4 Kg8 41.Rf5 Ra2 42.Kh3 Ra4 43.g4 Ra3+ 44.f3 Kh7 45.h5 Kg8 46.Kg3 Rd3 47.Kh2 Rd2+ 48.Kh3 Rd3 49.Kh4 Ra3 50.f4 Rf3 51.g5 hxg5+ 52.Rxg5+ Kh8 53.Kg4 Rf1 54.Rc5 Rg1+ 55.Kf5 Rh1 56.Kg5 Kh7
+- (3.25) Depth: 46/67 00:00:09 326MN
28...Rxd5
+- (3.17 ++) Depth: 47/58 00:00:09 328MN
28...Rxd5
+- (3.10 ++) Depth: 47/65 00:00:10 382MN
28...Rxd5
+- (2.98 ++) Depth: 47/65 00:00:11 417MN
28...Rxd5
+- (2.82 ++) Depth: 47/65 00:00:13 506MN
28...Rxd5
+- (2.61 ++) Depth: 47/76 00:00:18 696MN
28...Rxd5 29.Rxd5
+- (3.32 --) Depth: 47/82 00:01:22 3057MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rd6 40.Rf4 Ra6 41.g4 Rb6 42.Rf5 Rb2 43.h4 Kh7 44.Kh2 Rd2 45.Kh3 Rd3+ 46.f3 Ra3 47.Kg3 Ra4 48.Kf2 Ra3 49.Kg2 Ra1 50.h5 Ra2+ 51.Kg3 Kg8 52.f4 Ra3+ 53.Kh2 Ra2+ 54.Kg1 Kh7 55.g5 Kg8 56.Rc5 hxg5 57.fxg5 Kh7 58.Rc7 Kg8
+- (3.32) Depth: 47/82 00:01:46 3944MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rd6 40.Rf4 Ra6 41.g4 Rb6 42.Rf5 Rb2 43.h4 Kh7 44.Kh2 Rd2 45.Kh3 Rd3+ 46.f3 Ra3 47.Kg3 Ra4 48.Kf2 Ra3 49.Kg2 Ra1 50.h5 Ra2+ 51.Kg3 Kg8 52.f4 Ra3+ 53.Kh2 Ra2+ 54.Kg1 Ra3 55.Kf1 Ra4 56.Kg2 Ra2+ 57.Kf3 Ra6 58.Ke4 Ra4+ 59.Ke3 Ra3+ 60.Kd4 Ra4+ 61.Kd5 Ra6 62.Ke5 Ra5+ 63.Kd6 Ra6+ 64.Kd7 Ra7+ 65.Kc6
+- (3.32) Depth: 48/74 00:01:59 4418MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Re4 Qg5 36.Ra4 h6 37.Rxa3 Qd5 38.Qxd5 Rxd5 39.Ra4 Rd6 40.Rf4 Kh7 41.g4 Rb6 42.h4 Rb3 43.Rf3 Rb2 44.Kg3 Kg6 45.h5+ Kh7 46.Rf5 Ra2 47.f3 Kg8 48.f4 Ra3+ 49.Kh2 Ra2+ 50.Kg1 Ra3 51.Kf1 Ra4 52.Kg2 Ra2+ 53.Kf3 Ra6 54.Ke4 Ra4+ 55.Ke3 Ra3+ 56.Kd4 Ra4+ 57.Kd5 Ra6 58.Ke5 Ra5+ 59.Kd6 Ra6+ 60.Kd7 Ra7+ 61.Kd8 Ra2 62.g5 Ra8+ 63.Ke7 Ra7+ 64.Kd6 Ra6+ 65.Kd7 Ra7+ 66.Kc6 Ra4 67.Kb5 Re4
+- (3.32) Depth: 49/79 00:02:13 4930MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Kh7 40.g4 Rb6 41.h4 Rb3 42.Rf3 Rb2 43.Kg3 Ra2 44.Rf5 Ra6 45.Kg2 Ra2 46.Kh3 Ra6 47.Kg3 Kg8 48.g5 Kh7 49.Kg4 Ra2 50.Kh5 Re2 51.gxh6 Kh8 52.Kg5 Rb2 53.Ra5 Kh7 54.Rd5 Ra2 55.Re5 Rc2 56.f4 Rg2+ 57.Kf5 Rb2 58.Re7 Rb5+ 59.Kg4 Kg6 60.Ra7 Rc5 61.f5+ Kxh6 62.Rxf7 Rc4+ 63.Kg3 Rc5 64.Kf4
+- (3.32) Depth: 50/72 00:02:31 5597MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Kh7 40.g4 Rb6 41.h4 Rb3 42.Rf3 Rb2 43.Kg3 Ra2 44.Rf5 Ra6 45.Kg2 Ra2 46.Kh3 Ra6 47.Kg3 Kg8 48.g5 Kh7 49.Re5 Ra2 50.Re8 Ra4 51.f4 Ra1 52.Kg2 Ra6 53.Rf8 hxg5 54.fxg5 Kg6 55.Rg8+ Kh5 56.Rh8+ Kg6 57.Rh6+ Kf5 58.Rh7 Ra2+ 59.Kf3 Ra3+ 60.Kf2 Ra7 61.Rg7 Ra2+ 62.Ke3 Ra3+ 63.Ke2 Ra2+ 64.Kd3 Ra3+ 65.Kc2 Ke6 66.h5 Rg3 67.h6 Rh3
+- (3.32) Depth: 51/79 00:02:52 6401MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra4 Rd6 39.Rf4 Kh7 40.g4 Rb6 41.h4 Rb3 42.Rf3 Rb2 43.Kg3 Ra2 44.Rf5 Ra6 45.Kg2 Ra2 46.Kh3 Ra6 47.Kg3 Kg8 48.g5 Kh7 49.Re5 Ra2 50.Re8 Ra4 51.f4 Ra1 52.Kg2 Ra6 53.Rf8 hxg5 54.fxg5 Kg6 55.Rg8+ Kh5 56.Rh8+ Kg6 57.Rh6+ Kf5 58.Rh7 Ra2+ 59.Kf3 Ra3+ 60.Ke2 Ke6 61.h5 Ra5 62.Rg7 Ra2+ 63.Kf3 Ra3+ 64.Ke4 Ra4+ 65.Ke3 Ra3+ 66.Kd4 Ra4+ 67.Kc3 Rh4
+- (3.32) Depth: 52/79 00:03:02 6779MN
28...Rxd5
+- (3.25 ++) Depth: 53/84 00:03:07 6939MN
28...Rxd5
+- (3.17 ++) Depth: 53/84 00:03:07 6955MN
28...Rxd5
+- (3.06 ++) Depth: 53/84 00:03:12 7157MN
28...Rxd5 29.Rxd5
+- (3.40 --) Depth: 53/91 00:04:59 10992MN
28...Rxd5 29.Rxd5
+- (3.61 --) Depth: 53/91 00:10:39 23225MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra7 Kg8 39.g4 Rd6 40.Ra8+ Kh7 41.Ra5 Kg6 42.Rf5 Rd2 43.Kg3 Kh7 44.f3 Rd1 45.h4 Rg1+ 46.Kf2 Rd1 47.h5 Rd2+ 48.Kg3 Ra2 49.Kf4 Ra6 50.Rc5 Rxf6+ 51.Rf5 Rb6 52.Rxf7+ Kg8 53.Re7 Rb5 54.Ke4 Rg5 55.Re5 Rg7 56.Kf5 Kh7 57.Kf6 Rg8 58.Re7+ Kh8 59.Rd7 Rg5 60.Rd6 Kh7 61.Ke6 Ra5 62.f4 Ra4 63.Rd7+ Kg8 64.Ke5 Rb4 65.Rc7 Rb5+ 66.Kd4 Rb4+ 67.Ke3 Ra4 68.Rc8+ Kh7
+- (3.61) Depth: 53/91 00:12:18 26807MN
28...Rxd5 29.Rxd5
+- (3.69 --) Depth: 54/90 00:17:35 38172MN
28...Rxd5 29.Rxd5
+- (3.76 --) Depth: 54/90 00:19:32 42437MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra7 Kg8 39.g4 Rd6 40.Ra8+ Kh7 41.Ra5 Kg6 42.Rf5 Rd2 43.Kg3 Ra2 44.f3 Ra3 45.h4 Kh7 46.Kh3 Kg6 47.h5+ Kh7 48.Kh2 Ra2+ 49.Kg3 Ra3 50.Re5 Rb3 51.Ra5 Rb6 52.Kf4 Rxf6+ 53.Rf5 Rc6 54.Rxf7+ Kg8 55.Rd7 Rc5 56.Ke4 Rg5 57.Rd5 Rg7 58.Kf5 Re7 59.Kf6 Ra7 60.Re5 Ra1 61.f4 Ra4 62.Kf5 Ra7 63.g5 Rf7+ 64.Kg4 Rc7 65.Re6 hxg5 66.fxg5 Kg7
+- (3.85) Depth: 54/97 00:25:09 54609MN
28...Rxd5 29.Rxd5
+- (3.92 --) Depth: 55/91 00:29:43 64496MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 Rc8 33.Rb7 Rd8 34.Qb3 Rf8 35.Qd5 h6 36.Rd7 Re8 37.Bd6 Bc3 38.Rxf7 Rd8 39.Qh5 Qg5 40.Qf3 a2 41.Qe4 Qg8 42.Rg7 a1Q 43.Rxg8+ Rxg8 44.f7 Bg7 45.fxg8Q+ Kxg8 46.Bxc5 Qf6 47.Be3 Qd6 48.h4 Qf6 49.h5 Kh8 50.g4 Qd6 51.Bf4 Qf6 52.Qe8+ Kh7 53.Kf3 Qc3+ 54.Qe3 Qf6 55.Qe4+ Kh8 56.Kg2 Kg8 57.Kg3 Qc3+ 58.Qe3 Qf6 59.Qd3 Qf7 60.Qe4 Qb3+ 61.Kg2 Qf7 62.Be3 Qd7 63.Qg6 Qd5+ 64.Kg3 Qb3 65.g5 Kh8 66.Qe8+ Qg8 67.Qxg8+ Kxg8
+- (3.96) Depth: 55/93 00:35:03 76113MN
28...Rxd5
+- (3.88 ++) Depth: 56/83 00:35:07 76283MN
28...Rxd5
+- (3.81 ++) Depth: 56/83 00:35:09 76323MN
28...Rxd5
+- (3.70 ++) Depth: 56/83 00:35:10 76366MN
28...Rxd5
+- (3.54 ++) Depth: 56/83 00:35:12 76450MN
28...Rxd5
+- (3.32 ++) Depth: 56/83 00:35:16 76577MN
28...Rxd5
+- (3.03 ++) Depth: 56/83 00:36:45 79738MN
28...Rxd5 29.Rxd5
+- (4.03 --) Depth: 56/100 00:40:23 87594MN
28...Rxd5 29.Rxd5 a3 30.Qf3 Qg8 31.Rd7 Rd8 32.Rc7 c4 33.Rxc4 Qg5 34.Rxb4 Qxe5 35.Ra4 h6 36.Rxa3 Qd5 37.Qxd5 Rxd5 38.Ra7 Kg8 39.g4 Rd6 40.Ra8+ Kh7 41.Ra5 Rxf6 42.Rf5 Rg6 43.Rxf7+ Kg8 44.Rf4 Re6 45.h4 Rb6 46.h5 Rb1 47.Rf5 Kg7 48.Rf3 Rd1 49.Rc3 Rd4 50.Kf3 Rd1 51.Kg3 Rg1+ 52.Kh2 Rf1 53.Kg2 Rd1 54.f4 Rd6 55.Kf3 Rf6 56.Rc7+ Kg8 57.Rc5 Rf7 58.Ke4 Kh7 59.Ke5 Rg7 60.Kf5 Rf7+ 61.Ke4 Rg7 62.Kf3 Rg8 63.Rc3 Rg7 64.Rc6 Rf7 65.Ra6 Kg7 66.Rg6+ Kh7 67.Rc6 Rb7
+- (4.25) Depth: 56/107 00:56:28 122948MN

in your line, I don't like 30...Qg8, allowing the white rook to the 7th rank.

what about Rc8 instead?

I guess the most you could get out of this line is an ending like this one:

[d]7k/3R1p2/4rbq1/2B4p/7P/5PP1/Q5K1/8 w - - 0 14

which should be drawn

[Lyudmil Tsvetkov]

it may be a draw, but if i'm reading that output right Bxd5 is preferred

my line starts after Rd5 ed5 Rd1, and now a4 for black instead of d4 or something else.

I thought it was self-explanatory.

That is what Vincent was looking too if I'm not mistaken:

2) after 24.Rxd5 exd5 25.Rd1 a4, 2 best moves mode :

You said 26. bxa4 is forced, but John pointed out that 26. Bxd5 is Matefinder's alternative with a slightly higher score at that point (highest score sorted last, I think that is Arena). I have not analyzed any of the a4 lines.

the line is pretty much straightforward and without possible alternatives.

if you have not analysed it, better not comment.

where did Jon pointed this?
I read a single message of his, where he says nothing of the kind.
lines should really transpose.

No, I think you are looking at entirely the wong poster Lyudmil, John Dalhem was pointing out the answer from Vincent Lejeune which I also quoted:

http://www.talkchess.com/forum/viewtopi ... 22&t=64934

I am not commenting on whteher this is a draw or not, because that is beside the point. Just that apparently you don't have to take on a4 with White. At least not immediately. In second line he takes on move 28 all the same. After that the two lines seem to transpose.

those are perfectly identical lines.

you talk of john dalhem, but refer a message of Vincent Lejeune.

I don't know of a user called John Dalhem, all I know is of our very respected user john dalhem.

[Lyudmil Tsvetkov]

did some quick tests with SF and Komodo, 10 games each at bullet.

result: 20 draws, not a single white win

you might want to test a bit with longer TC yourselves.

of course, this might just be a false positive, sometimes, with more complicated positions, or positions engines don't understand, test results are not very meaningful, but usually, they are in some 80% of cases or so.

this is just an indication engines play out this as draw, not any attempt at final conclusion.

I try to see where white has substantial evaluation advantages over black, but don't quite see them:

- compromised black king safety, meagre shelter, strong white f6 pawn
- but, on the other hand, 2 black passers, relatively advanced
- other things seem more or less equal

so, if king safety is indeed a bit preferable, maybe white has some 70-80cps advantage, maybe just winning, but maybe just drawing.

as the game is closer to the endgame, not many pieces left, I would guess the game is more of a draw, but that is just a guess.

[acase]

in your line, I don't like 30...Qg8, allowing the white rook to the 7th rank.

what about Rc8 instead?

I guess the most you could get out of this line is an ending like this one:

[d]7k/3R1p2/4rbq1/2B4p/7P/5PP1/Q5K1/8 w - - 0 14

which should be drawn

Lyudmil,


You can't post a position like that which is 14 moves after the initial position without posting the in between moves that were played to get to your diagrammed position. The reason is, is that it doesn't let us scrutinize the moves you made to get to the diagrammed position.


After your 30...Rc8 Stockfish still believes that black is lost,
here is what I have so far:

New game
2r1q2k/5p1p/5P2/2pRB3/1b6/p4QP1/5PKP/8 w - - 0 1

Analysis by Stockfish 190817 64 BMI2:

31.Qf5 Qg8 32.Bf4 a2 33.Bh6 Qe8 34.Qg4
+- (4.67) Depth: 7/7 00:00:00 11kN
31.Qf5 Qg8 32.Bf4 c4 33.Bh6 Bf8 34.Qxc8 Bxh6
+- (4.67) Depth: 8/8 00:00:00 14kN
31.Qf5 Qg8 32.Rd7 Rd8 33.Re7 Qg6 34.Qxg6 hxg6 35.Rxf7 Kg8 36.Ra7 Kf8
+/= (0.66) Depth: 9/11 00:00:00 85kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Qd5 h6 36.Be5
+/- (0.90) Depth: 10/11 00:00:00 129kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Re7 Rd8 36.Qd5 Rf8
+/- (0.98) Depth: 11/12 00:00:00 157kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Re7 Rd8 36.Qd5 Rf8 37.Re4 Kh8 38.h3
+/- (0.98) Depth: 12/17 00:00:00 330kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.Be5 Kg8 36.h4 h5 37.Rb7 Kh8 38.Bd6 Rd8 39.Rxf7 Rxd6 40.Rg7 Qxg7 41.fxg7+ Kxg7 42.Kf3 Rf6+ 43.Ke3
+/- (0.84) Depth: 13/23 00:00:00 700kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Be5 Qf5 38.Ra7 h5
+/- (0.85) Depth: 14/23 00:00:00 806kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Re7 Kh7 37.Qd5 Kg8 38.h5 Qg5 39.Qf3 Kh8 40.Re5 Qg8
+/- (0.91) Depth: 15/23 00:00:00 947kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.Re7 Kg8 36.Re4 Qf5 37.h4 h6 38.Rg4+ Kh8 39.Rg7 Be1 40.Qe2 Qd5+ 41.Kh2 Bd2 42.Qe7
+/- (1.36) Depth: 16/34 00:00:00 1677kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 a2 39.Ra7 Re8 40.Qd5 Kg8 41.Ra8 Rxa8 42.Qxa8+ Kh7 43.Qxa2
+- (1.61) Depth: 17/34 00:00:00 2033kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 c4 39.Rb7 Re8 40.Rxb4 Rxe5 41.Qxa3 Kh7 42.Rb8 Qxf6
+- (1.82) Depth: 18/34 00:00:00 3421kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Qe2 Ra8 36.h4 Kh8 37.h5 Qg8 38.Qc4 Re8 39.Re7 Rd8 40.Rxf7 Rd1 41.Rxh7+ Kxh7 42.Qc2+ Kh6
+- (1.66) Depth: 19/38 00:00:00 4879kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Qc2 38.Qg4+ Qg6 39.Qxg6+ fxg6 40.Rg7+ Kh8 41.f7 c4 42.Rxg6+ Kh7 43.Rg7+ Kh8 44.Rg8+ Kh7 45.Bc3 a2 46.Bxb4 a1Q
+- (1.85) Depth: 20/38 00:00:00 5273kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 Re8 39.Re7 Rg8 40.h5 Qg4 41.Rxf7 Qxf3+ 42.Kxf3 Rg5 43.Rf8+ Kh7 44.Rh8+ Kxh8 45.f7+ Rxe5 46.f8Q+ Kh7 47.Qf7+ Kh8
+- (1.95) Depth: 21/38 00:00:00 6807kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qe5 Rd3+ 45.Ke4 Rd1 46.Kf5 Re1 47.Qd5 Bc3
+- (4.67) Depth: 22/38 00:00:00 7540kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qe5 Rd3+ 45.Ke4 Rd1 46.Kf5 Re1 47.Qd5
+- (4.67) Depth: 23/38 00:00:00 7702kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qf5 Bc3 45.Qc8+ Kxg7 46.Qxc5 Bd4 47.Qd5 Bc3 48.Qb5 Ba1 49.Qa5 Rd3+ 50.Ke4
+- (4.67) Depth: 24/39 00:00:00 7891kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qb5 Rf6 46.Qc4 Rb6 47.Kf3 Rf6 48.Qd5 Re6 49.Qb5 Rf6 50.Qe8
+- (4.67) Depth: 25/40 00:00:00 8172kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qb5 Rf6 46.Qc4 Rb6 47.Kf3 Rf6 48.Qc8 Rb6 49.g5 hxg5 50.fxg5 Rb3+ 51.Ke2 Rb2+ 52.Kd3 Rb3+ 53.Kd4 Rb4+ 54.Ke3 Rb3+ 55.Kd2 Rb2+ 56.Kc3 Rb1 57.Qd8 Rb4
+- (4.67) Depth: 26/57 00:00:00 8618kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf4 Rb4+ 50.Ke3 Rb3+ 51.Ke2 Rb2+ 52.Kf1 Rb1+ 53.Kf2 Rb2+ 54.Kg1 Rd2 55.Qc4 Rb2 56.Qd4 Rb7 57.Qd8 Rb4 58.Kf2
+- (4.67) Depth: 27/57 00:00:00 8936kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2
+- (4.67) Depth: 28/57 00:00:00 9120kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2 Rd2+ 53.Kf3 Rd3+ 54.Kf4 Rd4+ 55.Kg3 Rd3+ 56.Kg4 Rd4+ 57.Kh3
+- (4.67) Depth: 29/57 00:00:00 9405kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2 Rd2+ 53.Kf3 Rd3+ 54.Kf4 Rd4+ 55.Ke3 Rg4 56.Qf6
+- (4.67) Depth: 30/57 00:00:00 9675kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf4 Rb4+ 50.Ke3 Rb3+ 51.Ke4 Rb4+ 52.Ke5 Rb5+ 53.Kd4 Rb4+ 54.Kc3 Rb5 55.Qd8 f6 56.h6 Rc5+ 57.Kd4 fxg5 58.h7+ Kxh7
+- (4.67) Depth: 31/57 00:00:00 10125kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Rd2 49.g5 Rd6 50.Ke3 hxg5 51.fxg5
+- (4.67) Depth: 32/57 00:00:00 10355kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Ra3 52.g5 Ra5+ 53.Kg4 hxg5 54.fxg5 Ra4+ 55.Kf3 Ra3+ 56.Kg2 Ra5
+- (4.67) Depth: 33/57 00:00:00 11305kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Kg8 52.g5 hxg5 53.fxg5 Rh1 54.Kg4 Rb1 55.Qe5 Rg1+ 56.Kf4 Rb1 57.Qd5 Rf1+ 58.Kg3 Be7 59.Kg2
+- (4.67) Depth: 34/59 00:00:00 12356kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Bd6 52.Qb2+ Kg8 53.Qg2 Ra3 54.Qc6 Be7 55.g5 Ra5+ 56.Kg4 hxg5 57.Qe8+ Bf8 58.h6
+- (4.67) Depth: 35/59 00:00:00 12759kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Bd6 52.Qb2+ Kg8 53.Qg2 Ra3 54.Qc6 Be7 55.g5 Ra5+ 56.Kg4 hxg5 57.Qe8+ Bf8 58.h6
+- (4.67) Depth: 36/59 00:00:00 13471kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh4 51.Kf3 Rh1 52.Kg2 Rh4 53.Qd7 Kg7 54.Kf3 Rh1 55.Qd5 Rh3+ 56.Kg2 Ra3 57.g5 hxg5 58.fxg5
+- (4.67) Depth: 37/65 00:00:00 16351kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 hxg5 54.fxg5 Ra5+ 55.Kg4 Ra4+ 56.Kg3 Ra3+ 57.Kg2 Rc3 58.Qe8 Rc5 59.Qd8 Rc2+ 60.Kg3 Rc1
+- (4.67) Depth: 38/65 00:00:00 19140kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 hxg5 54.fxg5 Ra5+ 55.Kg4 Ra4+ 56.Kf3 Ra3+ 57.Kg2 Ra4 58.Qe5 Ra2+ 59.Kf1 Rc2 60.Qe8 Rc5 61.Qd8
+- (4.67) Depth: 39/72 00:00:01 22490kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rd6 46.Qa8 Rd4 47.Kf3 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 Ra5+ 54.Kg4 hxg5 55.fxg5 Ra4+ 56.Kh3 Ra3+ 57.Kg2 Ra4 58.Qe5 Ra2+ 59.Kf3 Ra3+ 60.Kg4 Ra4+ 61.Kg3 Ra3+ 62.Kf2 Ra2+ 63.Kg1 Bg7
+- (4.67) Depth: 40/72 00:00:01 33241kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe5 Bg7 47.Qe8+ Bf8 48.Kf3 Rb3+ 49.Ke4 Rb2 50.Kf5 Rf2 51.g5 hxg5 52.h6 Rxf4+ 53.Kxg5 Rf1 54.h7+ Kxh7 55.Qxf8 Rf6 56.Kg4 Rg6+ 57.Kf3 Rf6+ 58.Ke4 Re6+ 59.Kf4 Rf6+ 60.Kg3 Rg6+ 61.Kf2 Rf6+ 62.Ke3 Re6+ 63.Kd3 Kg6 64.Qh8 Rc6 65.Qe5 Re6
+- (4.67) Depth: 41/71 00:00:08 310MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe3 Rb2+ 47.Kf3 Ra2 48.Qe8 Ra3+ 49.Ke4 Ra2 50.Qc8 Ra4+ 51.Kf5 Ra5+ 52.Kf6 Ra4 53.Qc7 Ra6+ 54.Kf5 Ra1 55.Qd8 Rf1 56.Qd2 Ra1 57.Qd5 Rc1 58.Qd7 Rf1 59.Qc6 Bg7 60.Qc4 Rf2 61.Ke4 Rb2 62.Kf3 Rh2 63.Qd5 Rh3+ 64.Kg2 Rc3
+- (4.67) Depth: 42/68 00:00:08 320MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe3 Rb2+ 47.Kf3 Ra2 48.Qe8 Ra3+ 49.Ke4 Ra2 50.Qc8 Ra4+ 51.Kf5 Ra5+ 52.Kf6 Ra4 53.Qc7 Ra6+ 54.Kf5 Ra1 55.Qd8 Rf1 56.Qd2 Bc5 57.Qd5 Be7 58.Qc4 Rf2 59.Qc8+ Kg7 60.Qc3+ Kh7 61.Qc7 Re2 62.Qc4 Re6 63.g5 hxg5 64.fxg5
+- (4.67) Depth: 43/70 00:00:09 356MN
31.Qf5
+- (4.75 ++) Depth: 44/68 00:00:28 1121MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 hxg5 50.fxg5 Rc2+ 51.Kg1 Rc1+ 52.Kf2 Rc2+ 53.Ke3 Rc3+ 54.Kf4 Rc4+ 55.Ke5 Rc5+ 56.Ke4 Rc4+ 57.Kd3 Rc1 58.Qb8 Rc5 59.h6 Rd5+ 60.Ke4 Rxg5 61.h7+ Kxh7 62.Qxf8 Kg6 63.Qd6+ Kg7
+- (4.75) Depth: 44/68 00:00:30 1212MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 hxg5 50.fxg5 Rc2+ 51.Kg1 Rc1+ 52.Kf2 Rc2+ 53.Kf3 Rc3+ 54.Kf4 Rc4+ 55.Kf5 Rc5+ 56.Kf6 Rc6+ 57.Ke5 Rc5+ 58.Kd4 Rc2 59.Qa8 Rh2 60.h6 Rh5 61.Qd8 Rh4+ 62.Kd5 Rh5 63.Ke5 Rh4 64.Kf5 Rb4
+- (4.75) Depth: 45/70 00:00:34 1368MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 Rc6 50.Qe8 Re6 51.Qc8 Rd6 52.Qf5 Kg7 53.Qe5+ Kh7 54.Qe4+ Kg7 55.Qf5 Rd2+ 56.Kg3 Rd6 57.Kf3 Ra6 58.Qc8 Rd6 59.Qc4 Be7 60.Qe2 Re6 61.Qb5 Bd6 62.Qc4 hxg5
+- (4.75) Depth: 46/64 00:00:38 1518MN
31.Qf5
+- (4.82 ++) Depth: 47/82 00:01:23 3337MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf1 Rh2 48.Qf6 Bg7 49.Qd8+ Bf8 50.Kg1 Rh3 51.Kg2 Ra3 52.Qd5 Ra4 53.Qd2 Be7 54.Qd7 Ra2+ 55.Kg3 Ra3+ 56.Kf2 Ra2+ 57.Kf3 Ra3+ 58.Ke4 Bf8 59.g5 Ra6 60.Kf5 Rd6 61.Qe8 Re6 62.Qc8 hxg5 63.fxg5
+- (4.82) Depth: 47/82 00:01:26 3451MN
31.Qf5 Ra8
+- (4.75 --) Depth: 48/89 00:02:57 6871MN
31.Qf5 Ra8
+- (4.67 --) Depth: 48/89 00:03:00 6962MN
31.Qf5
+- (4.75 ++) Depth: 48/89 00:03:18 7600MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qf3 Rd8 34.Rc7 Rf8 35.Qd5 h6 36.Rd7 Re8 37.Bd6 Bc3 38.Rxf7 Rd8 39.Qh5 Qg5 40.Qf3 a2 41.Qe4 Qg8 42.Rg7 a1Q 43.Rxg8+ Rxg8 44.f7 Bg7 45.fxg8R+ Kxg8 46.Bxc5 Qf6 47.Bb4 Qf7 48.Qa8+ Kh7 49.Qf3 Qe8 50.Bc3 Bf8 51.Qd3+ Kg8 52.Qd5+ Kh7 53.Kf3 Qg6 54.Bd4 Qd3+ 55.Kf4 Qd2+ 56.Kg4 Qe2+ 57.Kh3 Qe8 58.Kg2 Kg6 59.Qg8+ Kf5 60.Qh7+ Ke6 61.Qe4+ Kf7 62.Qf5+ Kg8 63.Qf3 Kh7 64.Qf6 h5 65.Qf5+ Kh6 66.Bc3 h4 67.Qf6+ Kh7 68.Qxh4+ Kg6 69.Qf6+ Kh7 70.Qf5+ Kg8 71.Qd5+ Kh7
+- (4.88) Depth: 48/89 00:03:48 8720MN
31.Qf5
+- (4.96 ++) Depth: 49/86 00:05:41 13005MN
31.Qf5
+- (5.03 ++) Depth: 49/86 00:06:59 15986MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Rf8 57.Kf3 Re8 58.Qd5 Rc8 59.Qb7 Re8 60.Qd7 Rb8 61.Qe7 Rf8 62.Qd6 f6 63.gxh6 Bxh6 64.Qd5+ Kh8 65.Qd3 Bg7
+- (5.04) Depth: 49/86 00:07:16 16679MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Re8 57.Kf3 Re6 58.Qc8+ Bf8 59.Qa8 Rb6 60.Qe8 Rd6 61.Qe4 Re6 62.Qb7 hxg5 63.fxg5 Re5 64.Kg4 Ra5 65.Qe4 Rc5 66.Qa8
+- (5.04) Depth: 50/71 00:07:24 17001MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Re8 57.Kf3 Re6 58.Kg4 Re8 59.Qd5 Rc8 60.Qd6 hxg5 61.fxg5 Rc4+ 62.Kg3 Rc3+ 63.Kf4 Rc4+ 64.Ke3 Rc3+ 65.Kd2 Rh3 66.h6 Bf8 67.Qf6 Ra3 68.Ke2 Ra2+ 69.Kf3 Ra3+ 70.Kf2
+- (5.05) Depth: 51/79 00:09:04 20855MN
31.Qf5
+- (5.12 ++) Depth: 52/87 00:12:01 27588MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qh5 Qg6 34.Qf3 Rf8 35.Qd5 a2 36.Qxa2 Kg8 37.Bd6 Rc8 38.Qd5 h6 39.Qf3 Bd2 40.h4 h5 41.Qb7 Re8 42.Re7 Rd8 43.Bc7 Rf8 44.Re5 Bh6 45.Bd6 Rd8 46.Qc7 Ra8 47.Qc6 Rd8 48.Qxc5 Qd3 49.Qc7 Qxd6 50.Re8+ Rxe8 51.Qxd6 Re6 52.Qb8+ Kh7 53.Qb1+ Kh8 54.Qf5 Kg8 55.Qxh5 Rxf6 56.Qg4+ Rg6 57.Qc4 Bf8 58.h5 Rg5 59.Qc8 Rg7 60.g4 Rh7 61.f4
+- (5.18) Depth: 52/87 00:14:38 33500MN
31.Qf5 Ra8
+- (5.11 --) Depth: 53/76 00:14:50 33952MN
31.Qf5 Ra8
+- (5.03 --) Depth: 53/76 00:14:53 34054MN
31.Qf5 Ra8
+- (4.92 --) Depth: 53/76 00:14:59 34308MN
31.Qf5
+- (5.01 ++) Depth: 53/76 00:15:06 34565MN
31.Qf5
+- (5.23 ++) Depth: 53/76 00:17:06 39223MN


I'll post the analysis when I get back from work in about 11-12 hours, that should be plenty of time for it to think and perhaps clear it up more (although I'm convinced this is a win for white).

[Eelco de Groot]

I don't see many passed pawns here

[d]6qk/5p1p/5P2/pp6/1b1pQ1P1/1Pp4R/5P1P/6K1 w - - 0 8

c3, d4, a4(soon)

Hello Lyudmil, yes, you are right. I really should look into what difference that makes. But changes to passed pawns often have very little apparent effect in a single position, only statistically in large number of positions, because passed pawn scores have to be enlarged just to make sure search looks into promising pawn pushes. And it is possible that the code as it is in default Stock, is only working really optimally for short searchdepths, like with King safety.

a4 maybe can't be stopped but it is not enough I think that the testposition is still valid in the sense that the solution offers real chances to win also with a4.

best 5 moves after 1. Rxd5 exd5 2, Rd1 a4:

[D]r2r1q1k/5p1p/5P2/1pppB2Q/pb6/1P4P1/5PBP/3R2K1 w - -

Engine: Test Imbalance HT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

52 183:14 +3.00 3.bxa4 bxa4 4.Bxd5 Rxd5 5.Rxd5 Qe8
6.Qf3 Qg8 7.Bf4 a3 8.Bh6 a2 9.Bg7+ Qxg7
10.fxg7+ Kg8 11.Rd1 a1Q 12.Rxa1 Rxa1+
13.Kg2 Ra6 14.Qd3 Ra8 15.f4 Kxg7
16.Qd5 (122.981.032.415) 11185

52 183:14 +2.15 3.Bxd5 a3 4.Bf4 a2 5.Bh6 a1Q 6.Bxf8 Qxf6
7.Bxa8 Rxf8 8.Be4 h6 9.Rd5 Bc3
10.Rxc5 Re8 11.Rxc3 Rxe4 12.Rf3 Qg6
13.Qxb5 Kg8 14.b4 Qe6 15.Rf4 Re5
16.Qb7 (122.981.032.415) 11185

52 183:14 +0.75 3.Rxd5 Qg8 4.bxa4 Qg6 5.Qd1 Ba5
6.axb5 c4 7.Bf3 Qf5 8.Bc7 Rxd5
9.Qxd5 Qxd5 10.Bxd5 Ra7 11.b6 Rxc7
12.bxc7 Bxc7 13.Bxf7 Be5 14.Bxc4 Bxf6
15.Kg2 Kg7 16.Kf3 (122.981.032.415) 11185

52 183:14 +0.08 3.Bf4 Qg8 4.Bxd5 Bc3 5.Qf3 Bxf6
6.Bc7 Bb2 7.Bxd8 Rxd8 8.bxa4 bxa4
9.Re1 Qf8 10.Bxf7 a3 11.Kg2 c4
12.Bxc4 Qxf3+ 13.Kxf3 Bd4 14.Re2 Rb8
15.Rd2 Bc5 16.Ke2 (122.981.032.415) 11185

52 183:14 0.00 3.Rd3 Qg8 4.Bxd5 Qg6 5.Qf3 Rac8
6.bxa4 bxa4 7.Kg2 c4 8.Rd4 Rxd5
9.Qxd5 Bc3 10.Re4 Bxe5 11.Rxe5 Qxf6
12.Qd4 Qg7 13.Qf4 f6 14.Ra5 c3
15.Qf5 Qb7+ 16.f3 (122.981.032.415) 11185

It has been very gradually climbing. If it was a forced draw... a4 is the best reply, it seems more certain that you can say that.

In the main line there is the following interesting position with a real poisoned pawn! It may still be a fortress but just the nicety of the position is worth it as a solution perhaps?


[pgn]
[Event "?"]
[Site "?"]
[Date "2017.08.21"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2r1q1k/5p1p/4pP2/pppbB2Q/1b6/1P4P1/5PBP/R2R2K1 w - -"]

1. Rxd5 exd5 2. Rd1 a4 3. bxa4 bxa4 4. Bxd5 Rxd5 5. Rxd5
Qe8 6. Qf3 Qg8 7. Bf4 a3 8. Bh6 a2 9. Bg7+ Qxg7 10. fxg7+ *
[/pgn]

[D]r6k/5pPp/8/2pR4/1b6/5QP1/p4P1P/6K1 b - -

Engine: Test Imbalance HT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

47 5:07 +3.43 10...Kg8 11.Rd1 a1Q 12.Rxa1 Rxa1+
13.Kg2 Re1 14.Qf6 Re6 15.Qd8+ Kxg7
16.f4 h6 17.Qd5 Re2+ 18.Kh3 Re1
19.Kg4 Bc3 20.Qxc5 Bf6 21.Kh5 Rb1
22.h4 Rb8 23.Qf5 Rd8 (1.982.148.233) 6453

47 5:07 +M8 10...Kxg7 11.Rg5+ Kf8 12.Qxa8+ Ke7
13.Re5+ Kd6 14.Qd5+ Kc7 15.Re7+ Kb6
16.Rb7+ Ka6 17.Qc6+ Ka5 18.Ra7+ (1.982.148.233) 6453

A few more moves. This is one for Jon's material imbalance collection.
[pgn]
[Event "?"]
[Site "?"]
[Date "2017.08.21"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2r1q1k/5p1p/4pP2/pppbB2Q/1b6/1P4P1/5PBP/R2R2K1 w - -"]

1. Rxd5 exd5 2. Rd1 a4 3. bxa4 bxa4 4. Bxd5 Rxd5 5. Rxd5
Qe8 6. Qf3 Qg8 7. Bf4 a3 8. Bh6 a2 9. Bg7+ Qxg7 10. fxg7+
Kg8 11. Rd1 a1=Q 12. Rxa1 Rxa1+ 13. Kg2 *
[/pgn]

I leave this as an exercise for the reader's computer. If you can't crack it, just wait for an update for Stockfish. If the changes do not pass, I will try something else.

[Lyudmil Tsvetkov]

I don't see many passed pawns here

[d]6qk/5p1p/5P2/pp6/1b1pQ1P1/1Pp4R/5P1P/6K1 w - - 0 8

c3, d4, a4(soon)

Hello Lyudmil, yes, you are right. I really should look into what difference that makes. But changes to passed pawns often have very little apparent effect in a single position, only statistically in large number of positions, because passed pawn scores have to be enlarged just to make sure search looks into promising pawn pushes. And it is possible that the code as it is in default Stock, is only working really optimally for short searchdepths, like with King safety.

a4 maybe can't be stopped but it is not enough I think that the testposition is still valid in the sense that the solution offers real chances to win also with a4.

best 5 moves after 1. Rxd5 exd5 2, Rd1 a4:

[D]r2r1q1k/5p1p/5P2/1pppB2Q/pb6/1P4P1/5PBP/3R2K1 w - -

Engine: Test Imbalance HT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

52 183:14 +3.00 3.bxa4 bxa4 4.Bxd5 Rxd5 5.Rxd5 Qe8
6.Qf3 Qg8 7.Bf4 a3 8.Bh6 a2 9.Bg7+ Qxg7
10.fxg7+ Kg8 11.Rd1 a1Q 12.Rxa1 Rxa1+
13.Kg2 Ra6 14.Qd3 Ra8 15.f4 Kxg7
16.Qd5 (122.981.032.415) 11185

52 183:14 +2.15 3.Bxd5 a3 4.Bf4 a2 5.Bh6 a1Q 6.Bxf8 Qxf6
7.Bxa8 Rxf8 8.Be4 h6 9.Rd5 Bc3
10.Rxc5 Re8 11.Rxc3 Rxe4 12.Rf3 Qg6
13.Qxb5 Kg8 14.b4 Qe6 15.Rf4 Re5
16.Qb7 (122.981.032.415) 11185

52 183:14 +0.75 3.Rxd5 Qg8 4.bxa4 Qg6 5.Qd1 Ba5
6.axb5 c4 7.Bf3 Qf5 8.Bc7 Rxd5
9.Qxd5 Qxd5 10.Bxd5 Ra7 11.b6 Rxc7
12.bxc7 Bxc7 13.Bxf7 Be5 14.Bxc4 Bxf6
15.Kg2 Kg7 16.Kf3 (122.981.032.415) 11185

52 183:14 +0.08 3.Bf4 Qg8 4.Bxd5 Bc3 5.Qf3 Bxf6
6.Bc7 Bb2 7.Bxd8 Rxd8 8.bxa4 bxa4
9.Re1 Qf8 10.Bxf7 a3 11.Kg2 c4
12.Bxc4 Qxf3+ 13.Kxf3 Bd4 14.Re2 Rb8
15.Rd2 Bc5 16.Ke2 (122.981.032.415) 11185

52 183:14 0.00 3.Rd3 Qg8 4.Bxd5 Qg6 5.Qf3 Rac8
6.bxa4 bxa4 7.Kg2 c4 8.Rd4 Rxd5
9.Qxd5 Bc3 10.Re4 Bxe5 11.Rxe5 Qxf6
12.Qd4 Qg7 13.Qf4 f6 14.Ra5 c3
15.Qf5 Qb7+ 16.f3 (122.981.032.415) 11185

It has been very gradually climbing. If it was a forced draw... a4 is the best reply, it seems more certain that you can say that.

In the main line there is the following interesting position with a real poisoned pawn! It may still be a fortress but just the nicety of the position is worth it as a solution perhaps?


[pgn]
[Event "?"]
[Site "?"]
[Date "2017.08.21"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2r1q1k/5p1p/4pP2/pppbB2Q/1b6/1P4P1/5PBP/R2R2K1 w - -"]

1. Rxd5 exd5 2. Rd1 a4 3. bxa4 bxa4 4. Bxd5 Rxd5 5. Rxd5
Qe8 6. Qf3 Qg8 7. Bf4 a3 8. Bh6 a2 9. Bg7+ Qxg7 10. fxg7+ *
[/pgn]

[D]r6k/5pPp/8/2pR4/1b6/5QP1/p4P1P/6K1 b - -

Engine: Test Imbalance HT (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

47 5:07 +3.43 10...Kg8 11.Rd1 a1Q 12.Rxa1 Rxa1+
13.Kg2 Re1 14.Qf6 Re6 15.Qd8+ Kxg7
16.f4 h6 17.Qd5 Re2+ 18.Kh3 Re1
19.Kg4 Bc3 20.Qxc5 Bf6 21.Kh5 Rb1
22.h4 Rb8 23.Qf5 Rd8 (1.982.148.233) 6453

47 5:07 +M8 10...Kxg7 11.Rg5+ Kf8 12.Qxa8+ Ke7
13.Re5+ Kd6 14.Qd5+ Kc7 15.Re7+ Kb6
16.Rb7+ Ka6 17.Qc6+ Ka5 18.Ra7+ (1.982.148.233) 6453

A few more moves. This is one for Jon's material imbalance collection.
[pgn]
[Event "?"]
[Site "?"]
[Date "2017.08.21"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "r2r1q1k/5p1p/4pP2/pppbB2Q/1b6/1P4P1/5PBP/R2R2K1 w - -"]

1. Rxd5 exd5 2. Rd1 a4 3. bxa4 bxa4 4. Bxd5 Rxd5 5. Rxd5
Qe8 6. Qf3 Qg8 7. Bf4 a3 8. Bh6 a2 9. Bg7+ Qxg7 10. fxg7+
Kg8 11. Rd1 a1=Q 12. Rxa1 Rxa1+ 13. Kg2 *
[/pgn]

I leave this as an exercise for the reader's computer. If you can't crack it, just wait for an update for Stockfish. If the changes do not pass, I will try something else.

you play too cooperative.

sorry, should switch now to our game with Louis, as otherwise Louis' SF is going to mate me.

later more

[Lyudmil Tsvetkov]

in your line, I don't like 30...Qg8, allowing the white rook to the 7th rank.

what about Rc8 instead?

I guess the most you could get out of this line is an ending like this one:

[d]7k/3R1p2/4rbq1/2B4p/7P/5PP1/Q5K1/8 w - - 0 14

which should be drawn

Lyudmil,


You can't post a position like that which is 14 moves after the initial position without posting the in between moves that were played to get to your diagrammed position. The reason is, is that it doesn't let us scrutinize the moves you made to get to the diagrammed position.


After your 30...Rc8 Stockfish still believes that black is lost,
here is what I have so far:

New game
2r1q2k/5p1p/5P2/2pRB3/1b6/p4QP1/5PKP/8 w - - 0 1

Analysis by Stockfish 190817 64 BMI2:

31.Qf5 Qg8 32.Bf4 a2 33.Bh6 Qe8 34.Qg4
+- (4.67) Depth: 7/7 00:00:00 11kN
31.Qf5 Qg8 32.Bf4 c4 33.Bh6 Bf8 34.Qxc8 Bxh6
+- (4.67) Depth: 8/8 00:00:00 14kN
31.Qf5 Qg8 32.Rd7 Rd8 33.Re7 Qg6 34.Qxg6 hxg6 35.Rxf7 Kg8 36.Ra7 Kf8
+/= (0.66) Depth: 9/11 00:00:00 85kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Qd5 h6 36.Be5
+/- (0.90) Depth: 10/11 00:00:00 129kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Re7 Rd8 36.Qd5 Rf8
+/- (0.98) Depth: 11/12 00:00:00 157kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Re7 Rd8 36.Qd5 Rf8 37.Re4 Kh8 38.h3
+/- (0.98) Depth: 12/17 00:00:00 330kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.Be5 Kg8 36.h4 h5 37.Rb7 Kh8 38.Bd6 Rd8 39.Rxf7 Rxd6 40.Rg7 Qxg7 41.fxg7+ Kxg7 42.Kf3 Rf6+ 43.Ke3
+/- (0.84) Depth: 13/23 00:00:00 700kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Be5 Qf5 38.Ra7 h5
+/- (0.85) Depth: 14/23 00:00:00 806kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Re7 Kh7 37.Qd5 Kg8 38.h5 Qg5 39.Qf3 Kh8 40.Re5 Qg8
+/- (0.91) Depth: 15/23 00:00:00 947kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.Re7 Kg8 36.Re4 Qf5 37.h4 h6 38.Rg4+ Kh8 39.Rg7 Be1 40.Qe2 Qd5+ 41.Kh2 Bd2 42.Qe7
+/- (1.36) Depth: 16/34 00:00:00 1677kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 a2 39.Ra7 Re8 40.Qd5 Kg8 41.Ra8 Rxa8 42.Qxa8+ Kh7 43.Qxa2
+- (1.61) Depth: 17/34 00:00:00 2033kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 c4 39.Rb7 Re8 40.Rxb4 Rxe5 41.Qxa3 Kh7 42.Rb8 Qxf6
+- (1.82) Depth: 18/34 00:00:00 3421kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Kg8 35.Qe2 Ra8 36.h4 Kh8 37.h5 Qg8 38.Qc4 Re8 39.Re7 Rd8 40.Rxf7 Rd1 41.Rxh7+ Kxh7 42.Qc2+ Kh6
+- (1.66) Depth: 19/38 00:00:00 4879kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Qc2 38.Qg4+ Qg6 39.Qxg6+ fxg6 40.Rg7+ Kh8 41.f7 c4 42.Rxg6+ Kh7 43.Rg7+ Kh8 44.Rg8+ Kh7 45.Bc3 a2 46.Bxb4 a1Q
+- (1.85) Depth: 20/38 00:00:00 5273kN
31.Qg4 Qg8 32.Qc4 Re8 33.Ba1 Qg6 34.Rd7 Rf8 35.h4 h6 36.Qd5 Kg8 37.Qf3 Kh8 38.Be5 Re8 39.Re7 Rg8 40.h5 Qg4 41.Rxf7 Qxf3+ 42.Kxf3 Rg5 43.Rf8+ Kh7 44.Rh8+ Kxh8 45.f7+ Rxe5 46.f8Q+ Kh7 47.Qf7+ Kh8
+- (1.95) Depth: 21/38 00:00:00 6807kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qe5 Rd3+ 45.Ke4 Rd1 46.Kf5 Re1 47.Qd5 Bc3
+- (4.67) Depth: 22/38 00:00:00 7540kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qe5 Rd3+ 45.Ke4 Rd1 46.Kf5 Re1 47.Qd5
+- (4.67) Depth: 23/38 00:00:00 7702kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.f4 Re2+ 43.Kf3 Rd2 44.Qf5 Bc3 45.Qc8+ Kxg7 46.Qxc5 Bd4 47.Qd5 Bc3 48.Qb5 Ba1 49.Qa5 Rd3+ 50.Ke4
+- (4.67) Depth: 24/39 00:00:00 7891kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qb5 Rf6 46.Qc4 Rb6 47.Kf3 Rf6 48.Qd5 Re6 49.Qb5 Rf6 50.Qe8
+- (4.67) Depth: 25/40 00:00:00 8172kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qb5 Rf6 46.Qc4 Rb6 47.Kf3 Rf6 48.Qc8 Rb6 49.g5 hxg5 50.fxg5 Rb3+ 51.Ke2 Rb2+ 52.Kd3 Rb3+ 53.Kd4 Rb4+ 54.Ke3 Rb3+ 55.Kd2 Rb2+ 56.Kc3 Rb1 57.Qd8 Rb4
+- (4.67) Depth: 26/57 00:00:00 8618kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf4 Rb4+ 50.Ke3 Rb3+ 51.Ke2 Rb2+ 52.Kf1 Rb1+ 53.Kf2 Rb2+ 54.Kg1 Rd2 55.Qc4 Rb2 56.Qd4 Rb7 57.Qd8 Rb4 58.Kf2
+- (4.67) Depth: 27/57 00:00:00 8936kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2
+- (4.67) Depth: 28/57 00:00:00 9120kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2 Rd2+ 53.Kf3 Rd3+ 54.Kf4 Rd4+ 55.Kg3 Rd3+ 56.Kg4 Rd4+ 57.Kh3
+- (4.67) Depth: 29/57 00:00:00 9405kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf2 Rb2+ 50.Kg1 Rd2 51.Qc6 Rd8 52.Kf2 Rd2+ 53.Kf3 Rd3+ 54.Kf4 Rd4+ 55.Ke3 Rg4 56.Qf6
+- (4.67) Depth: 30/57 00:00:00 9675kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qc8 Rb6 46.g5 hxg5 47.fxg5 Rb2+ 48.Kg3 Rb3+ 49.Kf4 Rb4+ 50.Ke3 Rb3+ 51.Ke4 Rb4+ 52.Ke5 Rb5+ 53.Kd4 Rb4+ 54.Kc3 Rb5 55.Qd8 f6 56.h6 Rc5+ 57.Kd4 fxg5 58.h7+ Kxh7
+- (4.67) Depth: 31/57 00:00:00 10125kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Rd2 49.g5 Rd6 50.Ke3 hxg5 51.fxg5
+- (4.67) Depth: 32/57 00:00:00 10355kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Ra3 52.g5 Ra5+ 53.Kg4 hxg5 54.fxg5 Ra4+ 55.Kf3 Ra3+ 56.Kg2 Ra5
+- (4.67) Depth: 33/57 00:00:00 11305kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Kg8 52.g5 hxg5 53.fxg5 Rh1 54.Kg4 Rb1 55.Qe5 Rg1+ 56.Kf4 Rb1 57.Qd5 Rf1+ 58.Kg3 Be7 59.Kg2
+- (4.67) Depth: 34/59 00:00:00 12356kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Bd6 52.Qb2+ Kg8 53.Qg2 Ra3 54.Qc6 Be7 55.g5 Ra5+ 56.Kg4 hxg5 57.Qe8+ Bf8 58.h6
+- (4.67) Depth: 35/59 00:00:00 12759kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qe8 Rh3 50.Kf5 Kg7 51.Qe2 Bd6 52.Qb2+ Kg8 53.Qg2 Ra3 54.Qc6 Be7 55.g5 Ra5+ 56.Kg4 hxg5 57.Qe8+ Bf8 58.h6
+- (4.67) Depth: 36/59 00:00:00 13471kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh4 51.Kf3 Rh1 52.Kg2 Rh4 53.Qd7 Kg7 54.Kf3 Rh1 55.Qd5 Rh3+ 56.Kg2 Ra3 57.g5 hxg5 58.fxg5
+- (4.67) Depth: 37/65 00:00:00 16351kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 hxg5 54.fxg5 Ra5+ 55.Kg4 Ra4+ 56.Kg3 Ra3+ 57.Kg2 Rc3 58.Qe8 Rc5 59.Qd8 Rc2+ 60.Kg3 Rc1
+- (4.67) Depth: 38/65 00:00:00 19140kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rf6 46.Kf3 Rd6 47.Qa8 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 hxg5 54.fxg5 Ra5+ 55.Kg4 Ra4+ 56.Kf3 Ra3+ 57.Kg2 Ra4 58.Qe5 Ra2+ 59.Kf1 Rc2 60.Qe8 Rc5 61.Qd8
+- (4.67) Depth: 39/72 00:00:01 22490kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.f4 Bf8 45.Qd5 Rd6 46.Qa8 Rd4 47.Kf3 Rd3+ 48.Ke4 Ra3 49.Qd8 Rh3 50.Qe8 Rh1 51.Kf5 Rf1 52.Qe2 Ra1 53.g5 Ra5+ 54.Kg4 hxg5 55.fxg5 Ra4+ 56.Kh3 Ra3+ 57.Kg2 Ra4 58.Qe5 Ra2+ 59.Kf3 Ra3+ 60.Kg4 Ra4+ 61.Kg3 Ra3+ 62.Kf2 Ra2+ 63.Kg1 Bg7
+- (4.67) Depth: 40/72 00:00:01 33241kN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe5 Bg7 47.Qe8+ Bf8 48.Kf3 Rb3+ 49.Ke4 Rb2 50.Kf5 Rf2 51.g5 hxg5 52.h6 Rxf4+ 53.Kxg5 Rf1 54.h7+ Kxh7 55.Qxf8 Rf6 56.Kg4 Rg6+ 57.Kf3 Rf6+ 58.Ke4 Re6+ 59.Kf4 Rf6+ 60.Kg3 Rg6+ 61.Kf2 Rf6+ 62.Ke3 Re6+ 63.Kd3 Kg6 64.Qh8 Rc6 65.Qe5 Re6
+- (4.67) Depth: 41/71 00:00:08 310MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe3 Rb2+ 47.Kf3 Ra2 48.Qe8 Ra3+ 49.Ke4 Ra2 50.Qc8 Ra4+ 51.Kf5 Ra5+ 52.Kf6 Ra4 53.Qc7 Ra6+ 54.Kf5 Ra1 55.Qd8 Rf1 56.Qd2 Ra1 57.Qd5 Rc1 58.Qd7 Rf1 59.Qc6 Bg7 60.Qc4 Rf2 61.Ke4 Rb2 62.Kf3 Rh2 63.Qd5 Rh3+ 64.Kg2 Rc3
+- (4.67) Depth: 42/68 00:00:08 320MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qd4 Rb1 45.h5 Rb4 46.Qe3 Rb2+ 47.Kf3 Ra2 48.Qe8 Ra3+ 49.Ke4 Ra2 50.Qc8 Ra4+ 51.Kf5 Ra5+ 52.Kf6 Ra4 53.Qc7 Ra6+ 54.Kf5 Ra1 55.Qd8 Rf1 56.Qd2 Bc5 57.Qd5 Be7 58.Qc4 Rf2 59.Qc8+ Kg7 60.Qc3+ Kh7 61.Qc7 Re2 62.Qc4 Re6 63.g5 hxg5 64.fxg5
+- (4.67) Depth: 43/70 00:00:09 356MN
31.Qf5
+- (4.75 ++) Depth: 44/68 00:00:28 1121MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 hxg5 50.fxg5 Rc2+ 51.Kg1 Rc1+ 52.Kf2 Rc2+ 53.Ke3 Rc3+ 54.Kf4 Rc4+ 55.Ke5 Rc5+ 56.Ke4 Rc4+ 57.Kd3 Rc1 58.Qb8 Rc5 59.h6 Rd5+ 60.Ke4 Rxg5 61.h7+ Kxh7 62.Qxf8 Kg6 63.Qd6+ Kg7
+- (4.75) Depth: 44/68 00:00:30 1212MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 hxg5 50.fxg5 Rc2+ 51.Kg1 Rc1+ 52.Kf2 Rc2+ 53.Kf3 Rc3+ 54.Kf4 Rc4+ 55.Kf5 Rc5+ 56.Kf6 Rc6+ 57.Ke5 Rc5+ 58.Kd4 Rc2 59.Qa8 Rh2 60.h6 Rh5 61.Qd8 Rh4+ 62.Kd5 Rh5 63.Ke5 Rh4 64.Kf5 Rb4
+- (4.75) Depth: 45/70 00:00:34 1368MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Rc5 47.Qf6 Bg7 48.Qd8+ Bf8 49.g5 Rc6 50.Qe8 Re6 51.Qc8 Rd6 52.Qf5 Kg7 53.Qe5+ Kh7 54.Qe4+ Kg7 55.Qf5 Rd2+ 56.Kg3 Rd6 57.Kf3 Ra6 58.Qc8 Rd6 59.Qc4 Be7 60.Qe2 Re6 61.Qb5 Bd6 62.Qc4 hxg5
+- (4.75) Depth: 46/64 00:00:38 1518MN
31.Qf5
+- (4.82 ++) Depth: 47/82 00:01:23 3337MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf1 Rh2 48.Qf6 Bg7 49.Qd8+ Bf8 50.Kg1 Rh3 51.Kg2 Ra3 52.Qd5 Ra4 53.Qd2 Be7 54.Qd7 Ra2+ 55.Kg3 Ra3+ 56.Kf2 Ra2+ 57.Kf3 Ra3+ 58.Ke4 Bf8 59.g5 Ra6 60.Kf5 Rd6 61.Qe8 Re6 62.Qc8 hxg5 63.fxg5
+- (4.82) Depth: 47/82 00:01:26 3451MN
31.Qf5 Ra8
+- (4.75 --) Depth: 48/89 00:02:57 6871MN
31.Qf5 Ra8
+- (4.67 --) Depth: 48/89 00:03:00 6962MN
31.Qf5
+- (4.75 ++) Depth: 48/89 00:03:18 7600MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qf3 Rd8 34.Rc7 Rf8 35.Qd5 h6 36.Rd7 Re8 37.Bd6 Bc3 38.Rxf7 Rd8 39.Qh5 Qg5 40.Qf3 a2 41.Qe4 Qg8 42.Rg7 a1Q 43.Rxg8+ Rxg8 44.f7 Bg7 45.fxg8R+ Kxg8 46.Bxc5 Qf6 47.Bb4 Qf7 48.Qa8+ Kh7 49.Qf3 Qe8 50.Bc3 Bf8 51.Qd3+ Kg8 52.Qd5+ Kh7 53.Kf3 Qg6 54.Bd4 Qd3+ 55.Kf4 Qd2+ 56.Kg4 Qe2+ 57.Kh3 Qe8 58.Kg2 Kg6 59.Qg8+ Kf5 60.Qh7+ Ke6 61.Qe4+ Kf7 62.Qf5+ Kg8 63.Qf3 Kh7 64.Qf6 h5 65.Qf5+ Kh6 66.Bc3 h4 67.Qf6+ Kh7 68.Qxh4+ Kg6 69.Qf6+ Kh7 70.Qf5+ Kg8 71.Qd5+ Kh7
+- (4.88) Depth: 48/89 00:03:48 8720MN
31.Qf5
+- (4.96 ++) Depth: 49/86 00:05:41 13005MN
31.Qf5
+- (5.03 ++) Depth: 49/86 00:06:59 15986MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Rf8 57.Kf3 Re8 58.Qd5 Rc8 59.Qb7 Re8 60.Qd7 Rb8 61.Qe7 Rf8 62.Qd6 f6 63.gxh6 Bxh6 64.Qd5+ Kh8 65.Qd3 Bg7
+- (5.04) Depth: 49/86 00:07:16 16679MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Re8 57.Kf3 Re6 58.Qc8+ Bf8 59.Qa8 Rb6 60.Qe8 Rd6 61.Qe4 Re6 62.Qb7 hxg5 63.fxg5 Re5 64.Kg4 Ra5 65.Qe4 Rc5 66.Qa8
+- (5.04) Depth: 50/71 00:07:24 17001MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Ra1 45.h5 Ra5 46.Qd4 Ra2+ 47.Kf3 Ra3+ 48.Kf2 Ra2+ 49.Kf1 Rh2 50.Qd8 Rh3 51.Kg2 Rc3 52.Qd4 Bg7 53.Qd5 Rc8 54.g5 Rf8 55.Qf5 Ra8 56.Qc5 Re8 57.Kf3 Re6 58.Kg4 Re8 59.Qd5 Rc8 60.Qd6 hxg5 61.fxg5 Rc4+ 62.Kg3 Rc3+ 63.Kf4 Rc4+ 64.Ke3 Rc3+ 65.Kd2 Rh3 66.h6 Bf8 67.Qf6 Ra3 68.Ke2 Ra2+ 69.Kf3 Ra3+ 70.Kf2
+- (5.05) Depth: 51/79 00:09:04 20855MN
31.Qf5
+- (5.12 ++) Depth: 52/87 00:12:01 27588MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qh5 Qg6 34.Qf3 Rf8 35.Qd5 a2 36.Qxa2 Kg8 37.Bd6 Rc8 38.Qd5 h6 39.Qf3 Bd2 40.h4 h5 41.Qb7 Re8 42.Re7 Rd8 43.Bc7 Rf8 44.Re5 Bh6 45.Bd6 Rd8 46.Qc7 Ra8 47.Qc6 Rd8 48.Qxc5 Qd3 49.Qc7 Qxd6 50.Re8+ Rxe8 51.Qxd6 Re6 52.Qb8+ Kh7 53.Qb1+ Kh8 54.Qf5 Kg8 55.Qxh5 Rxf6 56.Qg4+ Rg6 57.Qc4 Bf8 58.h5 Rg5 59.Qc8 Rg7 60.g4 Rh7 61.f4
+- (5.18) Depth: 52/87 00:14:38 33500MN
31.Qf5 Ra8
+- (5.11 --) Depth: 53/76 00:14:50 33952MN
31.Qf5 Ra8
+- (5.03 --) Depth: 53/76 00:14:53 34054MN
31.Qf5 Ra8
+- (4.92 --) Depth: 53/76 00:14:59 34308MN
31.Qf5
+- (5.01 ++) Depth: 53/76 00:15:06 34565MN
31.Qf5
+- (5.23 ++) Depth: 53/76 00:17:06 39223MN


I'll post the analysis when I get back from work in about 11-12 hours, that should be plenty of time for it to think and perhaps clear it up more (although I'm convinced this is a win for white).

hi Andrew.

this is some precomputed output.

how did you get to +500cps in 0.0.00 seconds?

this is an impossible score for this position, something is going wrong with your search.

yeah, take the time to mind your business, I am also very busy now with my game with Louis's SF, I will have to mate it at any cost.

later we will certainly discuss more, but this is not a large advantage position for white.
if anything, even if a miraculous win there, white will struggle and struggle for very very long.

PS. sorry for the quick position, just don't have another opportunity, as am doing much stuff at the same time.

did you run some matches with this position?

[acase]

hi Andrew.

this is some precomputed output.

how did you get to +500cps in 0.0.00 seconds?

this is an impossible score for this position, something is going wrong with your search.

yeah, take the time to mind your business, I am also very busy now with my game with Louis's SF, I will have to mate it at any cost.

later we will certainly discuss more, but this is not a large advantage position for white.
if anything, even if a miraculous win there, white will struggle and struggle for very very long.

PS. sorry for the quick position, just don't have another opportunity, as am doing much stuff at the same time.

did you run some matches with this position?

Hi Lyudmil,

I'm back from work now.

Of course there may have been some pre-computed output as I am running my computer in analysis mode and giving it the moves you suggested, so it's really no surprise that it might be in the Hash, so I can assure you there is nothing wrong with my computer's search

Here is the rest of the output from the search after almost 11-1/2 hours:


New game
2r1q2k/5p1p/5P2/2pRB3/1b6/p4QP1/5PKP/8 w - - 0 1

Analysis by Stockfish 190817 64 BMI2:

3
+- (5.52 ++) Depth: 53/95 00:30:34 69623MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qh5 Qg6 34.Qf3 Rf8 35.Qd5 a2 36.Qxa2 Kg8 37.Bd6 Rc8 38.Qd5 h5 39.Qb7 Re8 40.Re7 Rd8 41.Bc7 Rf8 42.h4 Bc3 43.Be5 Bd2 44.Rd7 Bh6 45.Bd6 Re8 46.Re7 Rd8 47.Qc7 Ra8 48.Qc6 Rd8 49.Bxc5 Qd3 50.Re5 Kh7 51.Rxh5 Kg6 52.Re5 Kh7 53.Qb7 Rd7 54.Qc8 Rd8 55.Qc6 Kg6 56.Qc7 Qd7 57.h5+ Kh7 58.Qxd7 Rxd7 59.Re7 Rd5 60.Rxf7+ Kg8 61.Rc7 Rf5 62.Bd4 Bf8 63.f7+ Rxf7 64.Rxf7
+- (5.52) Depth: 53/95 00:37:21 85308MN
31.Qf5 Qg8
+- (5.44 --) Depth: 54/67 00:38:39 88240MN
31.Qf5
+- (5.52 ++) Depth: 54/76 00:39:49 90914MN
31.Qf5
+- (5.63 ++) Depth: 54/76 00:42:54 98070MN
31.Qf5
+- (5.79 ++) Depth: 54/87 00:57:47 132905MN
31.Qf5 Ra8 32.Rd7 c4 33.Qf3 Rd8 34.Re7 Qg8 35.Qe4 Rf8 36.Qxc4 Bd2 37.Rc7 Ba5 38.Rd7 h6 39.Bf4 Qg6 40.Qc5 Ra8 41.Qd5 Rg8 42.Qxa5 Qe4+ 43.f3 Qxf4 44.Rxf7 Qc4 45.Re7 Qc2+ 46.Kh3 Qg6 47.f7 Rf8 48.Qe5+ Qg7 49.Qe6 a2 50.Qxa2 Kh7 51.Qc2+ Qg6 52.Qc8 Rxf7 53.Rxf7+ Qxf7 54.Qg4 Kh8 55.Qd4+ Kh7 56.Qf4 Qe6+ 57.Kh4 Qe7+ 58.Kg4 Kg7 59.Qd4+ Kg8 60.Kh3 Kf7 61.Qf4+ Kg7 62.Qg4+ Kf8 63.f4 Qd6 64.Qc8+ Ke7 65.Qf5 Kd8 66.Qf7 Kc8 67.Qe8+ Kb7 68.f5 Qa6 69.Qe7+ Kb8 70.Qf8+ Kc7
+- (5.89) Depth: 54/87 01:05:49 151437MN
31.Qf5
+- (5.96 ++) Depth: 55/86 01:09:09 159229MN
31.Qf5 c4
+- (5.81 --) Depth: 55/90 01:20:51 186547MN
31.Qf5 c4
+- (5.70 --) Depth: 55/90 01:21:30 188019MN
31.Qf5 c4
+- (5.54 --) Depth: 55/90 01:21:59 189126MN
31.Qf5 c4
+- (5.32 --) Depth: 55/90 01:23:37 192818MN
31.Qf5 c4
+- (5.03 --) Depth: 55/90 01:24:36 195042MN
31.Qf5
+- (5.27 ++) Depth: 55/90 01:25:24 196849MN
31.Qf5
+- (5.77 ++) Depth: 55/90 01:26:21 199107MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Kxg7 42.g4 Re6 43.f4 c4 44.Qxc4 Bf8 45.Qd4+ Kg8 46.g5 Rd6 47.Qc4 Kg7 48.Qb5 Kh7 49.Kg3 Kg8 50.Kg4 Bg7 51.Kf3 Re6 52.Kg3 Kf8 53.Qc5+ Kg8 54.Qc8+ Bf8 55.Qc3 Bd6 56.Kg4 hxg5 57.fxg5 Re4+ 58.Kf3 Re5 59.Qc8+ Kh7 60.Qd8 Rf5+ 61.Kg4 Rd5 62.Qe8 Rd4+ 63.Kf3 Rf4+ 64.Ke3 Rf1 65.Qb5 Re1+ 66.Kf3 Bf8 67.Qd5 Bg7 68.Kg4 Rg1+ 69.Kf3 Rh1
+- (6.12) Depth: 55/95 01:31:44 211875MN
31.Qf5 Qg8
+- (6.02 --) Depth: 56/93 01:33:03 215047MN
31.Qf5
+- (6.12 ++) Depth: 56/93 01:33:50 216948MN
31.Qf5 Ra8 32.Rd7 Qg8 33.Qh5 Qg6 34.Qf3 Rf8 35.Qd5 Qg8 36.Bd6 Rc8 37.Rxf7 Bc3 38.Qe6 Re8 39.Qd7 Rc8 40.Rxh7+ Qxh7 41.Qxc8+ Qg8 42.Qxc5 Qa8+ 43.f3 Bxf6 44.Qxa3 Qe8 45.Bc5 Kg7 46.Bf2 Qb5 47.Qa7+ Kg8 48.Qc5 Qd3 49.Qe3 Qg6 50.Qf4 Qf7 51.Qf5 Kh8 52.h4 Qe7 53.Qc5 Qe6 54.Qe3 Qd6 55.h5 Be5 56.Qe4 Qf6 57.Be3 Ba1 58.g4 Qb2+ 59.Kh3 Qe5 60.Qxe5+ Bxe5 61.Kg2 Bf6 62.f4 Kg8 63.h6 Kh8
+- (6.16) Depth: 56/93 01:36:04 222221MN
31.Qf5
+- (6.23 ++) Depth: 57/86 01:42:38 237983MN
31.Qf5
+- (6.31 ++) Depth: 57/86 01:43:54 240910MN
31.Qf5
+- (6.42 ++) Depth: 57/86 02:03:07 285383MN
31.Qf5 Ra8 32.Rd7 c4 33.Qf3 Rd8 34.Re7 Qg8 35.Qe4 Rf8 36.Qxc4 Bd2 37.Ra7 Bg5 38.h4 Bd2 39.Rxa3 Rc8 40.Qd4 Rd8 41.Qb6 Re8 42.Qc6 Rc8 43.Qf3 Qe8 44.Qe4 h6 45.Ra7 Qc6 46.Qxc6 Rxc6 47.Rxf7 Kg8 48.Rg7+ Kf8 49.Rh7 Bc3 50.Bxc3 Rxc3 51.Rxh6 Rc4 52.Rh7 Rc6 53.Ra7 Rxf6 54.g4 Rh6 55.Kg3 Rc6 56.g5 Rc1 57.Ra8+ Ke7 58.h5 Rg1+ 59.Kf4 Rg2 60.Ra7+ Kd6 61.h6 Rh2 62.Kg3 Rh1 63.Ra6+ Kc5 64.Ra7
+- (6.47) Depth: 57/89 02:06:43 293822MN
31.Qf5
+- (6.55 ++) Depth: 58/82 02:16:01 315577MN
31.Qf5
+- (6.62 ++) Depth: 58/95 02:26:10 339697MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Ra6 40.h4 h6 41.h5 Re6 42.g4 Bc3 43.Qxc5 Bxg7 44.Qc8+ Bf8 45.f4 Rd6 46.Qc4 Bg7 47.g5 Rd8 48.Kf3 Rf8 49.Qc5 Kh8 50.Qc6 f6 51.gxh6 Bxh6 52.Qc2 Bg7 53.Qg6 f5 54.h6 Bc3 55.Qc6 Ba1 56.Qc5 Rf7 57.Qa5 Bf6 58.Qxf5 Rf8 59.Qc5 Rg8 60.Qd6 Bd8 61.Qe6 Rf8 62.Qg4 Rg8 63.Qf5 Rg1 64.Qf8+ Rg8 65.Qf7 Rg1 66.h7 Bh4 67.Qe8+ Kxh7 68.Qh5+ Kg7
+- (6.66) Depth: 58/98 02:32:52 355473MN
31.Qf5
+- (6.73 ++) Depth: 59/92 02:42:47 379163MN
31.Qf5 c4 32.Rd4 a2 33.Rh4 Qg8 34.Rxh7+ Qxh7 35.Qxc8+ Qg8 36.Qxc4 Bd6 37.Bc3 Qg6 38.Qxa2 Qd3 39.Qa4 Kh7 40.Qh4+ Kg8 41.Qg4+ Qg6 42.Qc8+ Kh7 43.Qe8 Bc5 44.Qe5 Bf8 45.Qd5 Bh6 46.h4 Kh8 47.Qd4 Bc1 48.Qe5 Bh6 49.Qe8+ Kh7 50.Bd4 Bd2 51.Qc6 Bb4 52.f3 Kh8 53.Qe8+ Kh7 54.g4 Qc2+ 55.Kh3 Qc4 56.Qe4+ Kh8 57.g5 Qc8+ 58.Kg2 Qg8 59.Qd5 Bd2 60.Qe5 Qg6 61.Kh3 Qh5 62.Kg3 Qg6 63.Qe4 Kh7 64.Kg4 Kg8 65.Qa8+ Kh7 66.Qd5 Qg8 67.Qe4+ Qg6
+- (6.73) Depth: 59/92 02:43:05 379919MN
31.Qf5 c4 32.Rd4 a2 33.Rh4 Qg8 34.Rxh7+ Qxh7 35.Qxc8+ Qg8 36.Qxc4 Bd6 37.Bc3 Qg6 38.Qxa2 Qd3 39.Qa4 Kh7 40.Qh4+ Kg8 41.Qg4+ Qg6 42.Qc8+ Kh7 43.Qe8 Bc5 44.Qe5 Bf8 45.Qd5 Bh6 46.h4 Kh8 47.Qd4 Bc1 48.Qe5 Bh6 49.Qe8+ Kh7 50.Bd4 Bd2 51.Qc6 Bb4 52.f3 Kh8 53.Qe8+ Kh7 54.g4 Qc2+ 55.Kh3 Qc4 56.Qe4+ Kh8 57.g5 Qc8+ 58.Kg2 Qg8 59.Qd5 Bd2 60.Qe5 Qg6 61.Kh3 Qh5 62.Kg3 Qg6 63.Kg2 Qh7 64.Qe4 Qxe4 65.fxe4 Bb4 66.Kh3 Ba5 67.Kg4 Bd2
+- (6.73) Depth: 60/74 02:44:23 383032MN
31.Qf5
+- (6.81 ++) Depth: 61/79 03:03:15 428313MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf5+ Kg7 50.Qg4+ Kh7 51.Kh3 Re3+ 52.Kh4 Re6 53.Qg5 Rh6 54.Kg4 Re6 55.Qf5+ Kg7 56.Qc5 Rh6 57.Qe5+ Kg8 58.Qg5+ Kh7 59.Qf5+ Kg8 60.Qd5 Re6 61.Kf3 Kh7 62.Kf2 Kg8 63.Qg5+ Kh7 64.Qf5+ Kg7 65.Kg2 Kg8 66.Kf3 Kg7 67.Qg5+ Kh7 68.Qd8 Kg7 69.Kg4 Rh6 70.Qd4+ Kg8 71.Qc4 Re6 72.Kf5 Rh6 73.Qh4 Kh7 74.Qe4 Re6
+- (6.85) Depth: 61/98 03:24:01 479663MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf5+ Kg7 50.Qg4+ Kh7 51.Kh3 Re3+ 52.Kh4 Re6 53.Qg5 Rh6 54.Kg4 Re6 55.Qf5+ Kg7 56.Qc5 Rh6 57.Qe5+ Kg8 58.Qg5+ Kh7 59.Qf5+ Kg8 60.Kg5 Kg7 61.Qd7 Re6 62.Kf5 Kg8 63.Qd8+ Kg7 64.Qd4+ Kh7 65.Qd5 Kg7 66.Kg5 Rh6 67.Qf5 Re6 68.Kg4 Rh6 69.Qc5 Kg8 70.Kg5 Kg7 71.Qc8 Re6 72.Kf4 Rf6+ 73.Kg4 Rh6 74.Qc3+ Kh7 75.Qd3+ Kg8 76.Qd7 Kg7 77.Qd4+ Kh7 78.Qf4 Kg7
+- (6.85) Depth: 62/97 03:27:23 487856MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qc7 Re2+ 51.Kf3 Re6 52.Qg3+ Kh7 53.Qf4 Kg7 54.Qg5+ Kh7 55.Qf5+ Kg7 56.Kg4 Kg8 57.Qc5 Kg7 58.Qd4+ Kg8 59.Kg3 Kh7 60.Kf4 Kg8 61.Kg4 Rh6 62.Kg5 Kh7 63.Qd5 Kg7 64.Qd7 Re6 65.Kf5 Rf6+ 66.Kg4 Re6 67.Qd3 Kh6 68.Qd2+ Kh7 69.Kg5 Kg7 70.Qc3+ Kh7 71.Qc5 Kg7 72.Kg4 Rh6 73.Qe5+ Kg8 74.Qg5+ Kh7 75.Qf5+ Kg8 76.Qc8+ Kg7 77.Qc3+ Kg8 78.Qe5 Re6 79.Qd5 Rh6 80.Kh4 Kg7 81.Qd4+ Kg8
+- (6.85) Depth: 63/112 03:28:17 489998MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qc7 Re2+ 51.Kf3 Re6 52.Qg3+ Kh7 53.Qf4 Kg7 54.Qg5+ Kh7 55.Kf4 Rh6 56.Ke4 Re6+ 57.Kd5 Rh6 58.Qg3 Kh8 59.Qg4 Kh7 60.Qg5 Re6 61.Qf4 Kg7 62.Qd4+ Kg8 63.Qd2 Kg7 64.Qg2+ Kh7 65.Qc2+ Kh8 66.Qb2+ Kh7 67.Qb8 Rh6 68.Qb1+ Kg7 69.Qg1+ Kh7 70.Qg4 Re6 71.Qf3 Kg7 72.Qc3+ Kg8 73.Qc1 Kh7 74.Qc7 Kg7
+- (6.85) Depth: 64/105 03:43:52 528547MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qd4+ Kg8 51.Qd8+ Kg7 52.Qd7 Kg8 53.Qd4 Kh7 54.Kf3 Kg8 55.Qd8+ Kg7 56.Qc7 Rf6+ 57.Ke4 Rh6 58.Qe5+ Kh7 59.Qg5 Re6+ 60.Kd5 Rh6 61.Qg3 Kh8 62.Qg4 Kh7 63.Qg5 Re6 64.Qf4 Kg7 65.Qd4+ Kg8 66.Qd2 Kg7 67.Qg2+ Kh7 68.Qc2+ Kh8 69.Qb1 Rh6 70.Qf5 Kg8 71.Qc8+ Kg7 72.Qc3+ Kh7 73.Qd3+ Kg8 74.Qe2 Kf8 75.Qg4 Re6 76.Qb4+ Kg7 77.Qc3+ Kg8 78.Qc8+ Kg7
+- (6.85) Depth: 65/96 03:47:58 538227MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qd4+ Kg8 51.Qd8+ Kg7 52.Kf3 Rf6+ 53.Kg4 Rh6 54.Qd4+ Kg8 55.Qe5 Kh7 56.Qe8 Kg7 57.Qe7 Kg8 58.Qc5 Re6 59.Qc3 Rh6 60.Qd4 Re6 61.Kg5 Kh7 62.Qd3+ Kg7 63.Qc3+ Kh7 64.Qh3 Rh6 65.Qg4 Re6 66.Qf5+ Kg7 67.Qd5 Rh6 68.Qd4+ Kh7 69.Qe4+ Kg7 70.Qg4 Kh7 71.Kf4 Re6 72.Qf5+ Kg7 73.Kg5 Rh6 74.Qd5 Re6 75.Qc5 Rh6 76.Qc8 Re6 77.Qc7 Rh6 78.Qc3+ Kh7 79.Qd3+ Kg7 80.Qd7
+- (6.85) Depth: 66/100 03:48:34 539697MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qd4+ Kg8 51.Qd8+ Kg7 52.Kf3 Rf6+ 53.Kg4 Rh6 54.Qd4+ Kg8 55.Qe5 Kh7 56.Qe8 Kg7 57.Qe7 Kg8 58.Qc5 Re6 59.Qc3 Rh6 60.Qd4 Re6 61.Kg5 Kh7 62.Qd3+ Kg7 63.Qc3+ Kh7 64.Qh3 Rh6 65.Qg4 Re6 66.Qf5+ Kg7 67.Qd5 Rh6 68.Kf4 Re6 69.Qd4+ Kg8 70.Qd8+ Kg7 71.Qd7 Kg8 72.Qc8+ Kg7 73.Qc3+ Kh7 74.Qd3+ Kh6 75.Kg4 Kg7 76.Kg5 Re5+ 77.Kh4 Re6 78.Qd4+ Kh7 79.Kg5
+- (6.85) Depth: 67/98 03:49:16 541379MN
31.Qf5 Qg8 32.Bf4 Ra8 33.Bh6 Qg6 34.Bg7+ Kg8 35.Qf3 a2 36.Rd1 a1Q 37.Rxa1 Rxa1 38.Qd5 Qxg7 39.fxg7 Re1 40.h4 h6 41.g4 Bc3 42.Qxc5 Bxg7 43.f4 Bf8 44.Qc4 Re6 45.h5 Bd6 46.g5 Bxf4 47.Qxf4 hxg5 48.Qxg5+ Kh7 49.Qf4 Kg7 50.Qd4+ Kg8 51.Qd8+ Kg7 52.Kf3 Rf6+ 53.Kg4 Rh6 54.Qd4+ Kg8 55.Qe5 Kh7 56.Qe8 Kg7 57.Qe7 Kg8 58.Qc5 Re6 59.Qc3 Rh6 60.Qd4 Re6 61.Kg5 Kh7 62.Qd3+ Kg7 63.Qc3+ Kh7 64.Qh3 Rh6 65.Qg4 Re6 66.Qf5+ Kg7 67.Qd5 Rh6 68.Kf4 Re6 69.Qb7 Rf6+ 70.Kg5 Rh6 71.Qe4 Rd6 72.Qe8 Re6 73.Qa4 Re5+ 74.Kh4 Re6 75.Qd4+ Kh7 76.Kg5 Rh6 77.Qe4+ Kg7 78.Qg4 Kh7 79.Qc8 Kg7 80.Qc3+ Kh7
+- (6.85) Depth: 68/98 04:01:00 569767MN
31.Qf5
+- (6.92 ++) Depth: 69/100 04:59:26 715532MN
31.Qf5
+- (7.00 ++) Depth: 69/100 06:05:50 876127MN
31.Qf5
+- (7.11 ++) Depth: 69/100 08:01:27 1152327MN
31.Qf5
+- (7.27 ++) Depth: 69/105 09:39:44 1393741MN
31.Qf5
+- (7.49 ++) Depth: 69/116 11:26:52 1658111MN



As you can see the eval is up to 7.49 for white now which would signify an easy win for Stockfish I do concede that it might take several more moves before mate, but its just a matter of technique for Stockfish, and by all means please take your time replying especially if you are busy playing a game against Louis's SF. Good luck in that game. I didn't realize you were playing a game, so I'll definitely have to check that out.


I don't generally run matches, especially when analysis mode shows me what I need to know. I would wager that from that position after 30...Rc8 that Stockfish would win 100% of the time against any program or human or any combination of human + comp.

Have a nice evening.

[acase]

Of course, Andrew!

I had 28.Kg2! in my .pgn about the position already in 2011, I guess that was also even the first time it was brought to a forum too, at least that's when I first stored it in my private database.

The game Loinjak- Norrellyke was played in 2011 on ICCF

Hi Peter!


I am glad that a highly respected member of our computer chess community such as yourself has given me confirmation through your own (and your computer's) analysis of 28.Kg2!.

[acase]

Thanks for this position, I missed it 17 months ago.

Hello Vincent,

I wanted to thank you for your fantastic archive and analysis of difficult positions, and by all means keep up the good work, perhaps this position might be difficult enough to make it into your excellent archive, but I'll let you be the judge.