A hard endgame (?) study

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peter
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Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: A hard endgame (?) study

Post by peter »

Eelco de Groot wrote: I think i see what is wrong, I accidently was analyzing the position after 2. Be4

[d]2r1b1k1/5pPp/1R3P1P/8/4B3/1P6/1K6/8 b - -

and there indeed Bd7 seems to be best... Sorry for the confusion.

At 70 ply


2r1b1k1/5pPp/1R3P1P/8/4B3/1P6/1K6/8 b - -

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

70 273:59 +M29 2...Bd7 3.Bd5 Bc6 4.Bxc6 Ra8 5.Ba4 Re8
6.Ka3 Ra8 7.Re6 fxe6 8.b4 Kf7 9.Kb3 Rc8
10.Bb5 Rd8 11.Bc6 Rd3+ 12.Kc2 Rg3
13.Be4 Kxf6 14.Bxh7 Rg2+ 15.Kb3 Rg3+ (317.025.562.829) 19284
Some more backward brings after 2.Be4 Bd7:

2r3k1/3b1pPp/1R3P1P/8/4B3/1P6/1K6/8 w - - 0 1

Analysis by Stockfish 060917 64 POPCNT:

3.Rb7 Be6 4.Bd3 Bd5 5.Rd7 Be6 6.Re7 Bd5 7.b4 Rb8 8.Kc3 Rc8+ 9.Kd4 Rd8 10.Kc5 Bf3 11.b5 Be2 12.Rxf7 Rc8+ 13.Kb4 Bxd3 14.Ra7 Bc4 15.b6 Bd5 16.Re7 Rc4+ 17.Kb5 Rc8 18.b7 Bc4+ 19.Kb4 Rd8 20.Rc7 Ba2 21.f7+ Bxf7 22.Rc8 Bg6 23.b8Q Kf7 24.Rxd8 Ke6 25.g8Q+ Kf5 26.Qg3 Bf7 27.Qxf7+ Ke4 28.Qxh7#
+- (#26) Depth: 58/52 00:01:16 2683MN

After 2...Bc6:

2r3k1/5pPp/1Rb2P1P/8/4B3/1P6/1K6/8 w - - 0 1

Analysis by Stockfish 060917 64 POPCNT:

3.Bxc6 Ra8 4.Ba4 Re8 5.Ka3 Ra8 6.Re6 fxe6 7.Kb2 Rd8 8.Kc3 Rc8+ 9.Kd4 Kf7 10.b4 Kxf6 11.Bc2 Rxc2 12.g8Q e5+ 13.Ke3 Rc3+ 14.Ke4 Rc2 15.Qxh7 Rc4+ 16.Kf3 Rc3+ 17.Kg4 Rc4+ 18.Kh5 Rf4 19.Qh8+ Kf7 20.Qc8 Rf2 21.Qc7+ Ke8 22.Qb8+ Kd7 23.Qa7+ Kd6 24.Qxf2 e4 25.Qd4+ Kc6 26.h7 Kb5 27.h8Q Ka4 28.Qc4 e3 29.Qa8#
+- (#27) Depth: 70/54 00:00:03 101MN

So I get the same 29 moves now after 2.Bd5 as well as after 2.Be4
Peter.
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Eelco de Groot
Posts: 4669
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: A hard endgame (?) study

Post by Eelco de Groot »

[pgn]
[Event "?"]
[Site "?"]
[Date "2017.08.18"]
[Round "?"]
[White "A hard endgame (?) study"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - -"]

1. a8=B $3 {33#} (1. a8=Q $2 Rc2+ 2. Ka1 Rc1+ {and the
checks can never be stopped.}) (1. Rb8 $2 Rc2+ 2. Ka3 Ra2+
3. Kb4 Ra4+ 4. Kc5 Ra5+ 5. Kd6 Ra6+ 6. Ke7 Rxa7+ 7. Kd8
Rd7+ 8. Kc8 Rc7+ {and the checks can never be stopped.})
(1. Rb4 $2 Rc8 2. Rb7 Ra8 $4 3. Rb8 Rxb8 4. axb8=N)
(1. a8=N Rc8 2. Ra6 (2. Nc7 Rxc7 3. Rb8 Rc2+ {draw})
2... Rxa8 3. Rxa8 {stalemate}) 1... Rc8 {Sokolsky -
Ravinsky, USSR 1938 (or 1933)} (1... Re5 2. Bf3 $1
(2. Rd6 $2 Rb5 $1 (2... Bc6 $2 3. Rd8+ Re8 (3... Be8 $2
4. Bd5 Re3 5. Ka2 {19#}) 4. Rxe8+ Bxe8 5. Be4 $18) 3. Kc3
Rb8 4. Be4 Bb5 5. b4 $18) 2... Rf5 3. Be4 Rc5 (3... Re5
4. Bd3 {22#} Re3 5. Bc4) 4. Rb7 {23#} Rh5 5. Re7 Bc6 6. Bd3
Rxh6 7. Rxf7 Kxf7 8. Bc4+) 2. Be4 $5 {or} (2. Bd5 $3 Rd8
{28#} (2... Bc6 3. Bxc6 Ra8 4. Ba4 Re8 5. Ka3 Ra8 6. Re6
fxe6 7. b4 {I think here it is #21} (7. Kb2 Rd8 8. b4 Rd4
9. Ka3 Rf4 10. b5 Rf3+ 11. Bb3 Rxf6) 7... Kf7 8. Kb3 Rc8
9. Bb5 Rd8 10. Bc6 Rd3+) 3. Bc4 Bb5 4. Bxf7+ Kxf7 5. Rxb5
Kxf6 6. Rc5 Rg8 7. Rc6+ Kg5 8. Kc3 $18) 2... Bc6 (2... Bd7
3. Bd5 Rc7 4. Rb8+ Bc8 5. Bxf7+ Kxf7 6. b4 Rc4 7. b5 Rb4+
8. Kc3 $18) (2... Rd8 {<Weiß setzt Matt: +- (#33) Tiefe:
58/91 01:39:27 86649MN} 3. Bf5 {33#} Rd2+ 4. Kc3 Rd8 5. Kb4
Rd4+ 6. Kc5 Rd8 7. Rb7 Bd7 8. Bd3 Be6 9. b4 Rc8+ 10. Kd4
Rd8+ 11. Ke5 Bc4 12. Bf5 Rd5+ 13. Kf4 Rd4+ 14. Ke3 Rd8
15. Rc7 Bb5 16. Kf4 Be8 17. Re7 Rd4+ 18. Ke3 (18. Ke5 $1)
18... Rd8 19. Bg4 Bb5 20. Bh5 Bc4 21. b5 Rd3+ 22. Ke4 Rd8
23. b6 Bd3+ 24. Kf4 Bc4 25. Rc7 (25. b7 $1) 25... Rd4+
26. Ke5 Rd5+ 27. Ke4 Rd8 28. b7 Bd5+ 29. Kf4 Be6 30. Bxf7+
Bxf7 31. Rc8 Be8 32. Rxd8 Kf7 33. b8=Q Ba4 34. g8=Q+ Kxf6
35. Qe5+) 3. Bxc6 $1 {27#; Now Black must threaten his
stalemate-perpetual.} Ra8 (3... Rd8 4. Bd5 {[%cal Rd5f7]
6#}) (3... Re8 4. Be4 {[%cal Re4h7] } Rc8 5. Bxh7+)
4. Ba4 $1 {26# Houd501 (after some backwards/vorwards)
3...Ra8 4.Ba4 Re8 5.Ka3 Ra8 6.Re6 fxe6 7.Kb2 Rd8 8.b4 Rd4
9.Ka3 Rf4 10.b5 Rf3+ 11.Bb3 Rxf6 12.b6 Rxh6 13.b7 Kxg7
14.b8Q Kf6 15.Qd8+ Kg6 16.Qg8+ Kf6 17.Qxe6+ Kg5 18.Qe5+ Kg6
19.Qf4 Rh1 20.Qe4+ Kg5 21.Qxh1 Kf4 22.Qxh7 Ke5 23.Qh5+ Ke4
24.Bd5+ Kf4 25. Kb2 Ke3 26.Qg4 Kd2 27.Qf3 Ke1 28.Bc4 Kd2
29.Qe2# Weiß setzt Matt: +- (#26) Tiefe: 65/87 00:25:40
24138MN} Re8 (4... Rc8 5. Re6 $1 {13#}) 5. Ka3 $1 {and
Black must give up the e-line, enabling Re6 after all} Ra8
6. Re6 $1 fxe6 $1 (6... Rd8 7. Ra6 $1 {6#}) (6... Rxa4+
7. bxa4 {9#}) 7. Kb4 (7. Kb2 Rd8 8. b4 Rd4 9. Ka3 Rf4
10. b5 Rf3+ 11. Bb3 Rxf6 12. b6 Rxh6 13. b7 Kxg7 14. b8=Q
{16#} Rh5 (14... Kf6 15. Qd8+ {14#}) (14... Rf6 15. Qe5
{15#} Kg6 16. Bc2+)) 7... Kf7 {the Rook had to guard the
eighth rank against 8.Be8} (7... Rd8 8. Kc4 {25#} Rc8+
9. Kd4) 8. Bc6 {22#} Rb8+ 9. Kc5 {and Black is helpless
against the threat of 10.Be4 followed by Bxh7} Rc8
(9... Kg8 10. Be4 Rxb3 11. Bxh7+ Kxh7 $19) (9... Rxb3
10. Be8+ {13#} Kxf6 11. g8=Q) 10. Kd6 Kxf6 11. Be4 Kg5
12. Kd7 Rb8 13. Bxh7 Kxh6 14. g8=Q Rxg8 15. Bxg8 {15#} 1-0[/pgn]

I inserted the move 7. b4 in Herbert's pgn; 2. Bd5 {!!} Bc6 3. Bxc6 Ra8 4. Ba4 Re8 5. Ka3 Ra8 6. Re6 fxe6 7. b4

I get a little less now after 2. Bd5. It is difficult to keep the PV goning backwards but with 7. b4 instead of 7. Kb2 it looks like you can shorten the mate distance.

(This is close to Stockfish):

[d]r5k1/6Pp/4pP1P/8/BP6/K7/8/8 b - -

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

56 14:20 +M21 7...Kf7 8.Kb3 Rc8 9.Bb5 Rd8 10.Bc6 Rd3+
11.Kc2 Rg3 12.Be4 Kg8 13.Bxh7+ Kxh7
14.f7 Rg2+ 15.Kd3 Rg3+ 16.Kd4 Rxg7
17.hxg7 Kxg7 18.b5 Kxf7 19.b6 Kg6
20.b7 Kf5 (8.430.907.460) 9801

55 14:20 +M19 7...Rd8 8.Bc2 Ra8+ 9.Kb3 Ra7 10.b5 Rb7
11.Kb4 Rc7 12.Be4 Rf7 13.b6 Rxf6
14.b7 Rxh6 15.b8Q+ Kxg7 16.Qc7+ Kf6
17.Qf4+ Kg7 18.Qg5+ Rg6 19.Bxg6 hxg6
20.Kc5 e5 (8.430.907.460) 9801

55 14:20 +M19 7...Rb8 8.Bc6 Rd8 9.Be4 Rd7 10.b5 Rf7
11.b6 Rxf6 12.b7 Rxh6 13.b8Q+ Kxg7
14.Qc7+ Kf6 15.Qf4+ Kg7 16.Qg5+ Rg6
17.Bxg6 hxg6 18.Kb4 e5 19.Kc5 e4
20.Kd6 e3 (8.430.907.460) 9801

55 14:20 +M18 7...Rc8 8.b5 Kf7 9.Kb4 Kxf6 10.Bc2 Rxc2
11.g8Q Rb2+ 12.Kc3 Re2 13.Qg7+ Kf5
14.Qxh7+ Kf4 15.b6 Re3+ 16.Qd3 Rxd3+
17.Kxd3 Kf3 18.h7 e5 19.h8Q e4+
20.Kd4 e3 (8.430.907.460) 9801

55 14:20 +M18 7...Ra7 8.b5 Ra8 9.Kb4 Rb8 10.Bc2 Rb7
11.Be4 Rf7 12.b6 Rxf6 13.b7 Rxh6
14.b8Q+ Kxg7 15.Qc7+ Kf6 16.Qf4+ Kg7
17.Qg5+ Rg6 18.Bxg6 hxg6 19.Kc5 e5
20.Kd6 e4 (8.430.907.460) 9801

best move: Kg8-f7 time: 14:20.203 min n/s: 9.801.203 nodes: 8.430.907.460

And a different run would confirm #26:

[d]2r1b1k1/5pPp/1R3P1P/3B4/8/1P6/1K6/8 b - -

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

79 782:31 +M26 2...Bc6 3.Bxc6 Ra8 4.Ba4 Re8 5.Ka3 Ra8
6.Re6 fxe6 7.b4 Kf7 8.Kb3 Rc8 9.Bb5 Rd8
10.Bc6 Rd3+ 11.Kc2 Rg3 12.Be4 Kxf6
13.Bxh7 Rg2+ 14.Kd3 Rg3+ 15.Ke4 Rg4+ (485.863.748.712) 10348

78 782:31 +M24 2...Rd8 3.Be4 Bb5 4.Bxh7+ Kxh7
5.Rxb5 Kxh6 6.b4 Kg6 7.Rb6 Kf5 8.Rc6 Ke5
9.Kc3 Rb8 10.Kc4 Ra8 11.b5 Ra4+
12.Kc5 Ra8 13.b6 Ra5+ 14.Kb4 Ra8
15.b7 Rb8 (485.863.748.712) 10348

78 782:31 +M17 2...Ba4 3.Bxf7+ Kxf7 4.bxa4 Re8 5.a5 Re2+
6.Kc3 Re3+ 7.Kd4 Re8 8.a6 Ra8 9.Ke4 Kg6
10.a7 Re8+ 11.Kf4 Rc8 12.g8R+ Rxg8
13.Rb8 Kf7 14.Rxg8 Kxg8 15.a8Q+ Kf7 (485.863.748.712) 10348

78 782:31 +M16 2...Bd7 3.Rb7 Ra8 4.Kc3 Rd8 5.Ra7 Rb8
6.Kd4 Rd8 7.Kc5 Rb8 8.Kd6 Rd8
9.Bxf7+ Kxf7 10.Rxd7+ Rxd7+ 11.Kxd7 Kxf6
12.g8Q Kf5 13.Qxh7+ Kg5 14.Qd3 Kxh6
15.Qg3 Kh7 (485.863.748.712) 10348

78 782:31 +M14 2...Rc5 3.Bxf7+ Kxf7 4.Rb7+ Kxf6
5.g8Q Re5 6.Rb6+ Kf5 7.Qxh7+ Kg4
8.Qg7+ Rg5 9.Qd4+ Kh3 10.h7 Rg2+
11.Kb1 Rg5 12.h8Q+ Bh5 13.Rg6 Rxg6
14.Qxh5+ Kg2 15.Qd2+ Kg1 (485.863.748.712) 10348
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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User avatar
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: A hard endgame (?) study

Post by MikeB »

Vinvin wrote:
Nordlandia wrote:Sokolsky - Ravinsky, USSR 1938 (or 1933)

a8=B is supposed to win, however no engine see a breakthrough.

[d]4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - 0 0

https://timkr.home.xs4all.nl/chess2/minor.htm
Finally found by SF after 9h57m ! (see last line)
CPU 6*4GHz, 8 GB hash

Code: Select all

Stockfish_170810_x64_modern:
...
 [snip]
 108/119	3:10:09	184 192 550k	16 143k	+11,19	1.b4 Rc8 2.Ra6 Bb5 3.Ra5 Bc6 4.b5 Re8 5.b6 Re2+ 6.Kc3 Re8 7.Rc5 Re3+ 8.Kd2 Re8 9.Rc3 Rd8+ 10.Kc2 Bd5 11.Kb2 Bc6 12.Re3 Bb7 13.Re5 Rc8 14.Ka3 Rd8 15.Kb4 Rd4+ 16.Kc3 Re4 17.Re7 Bd5 18.Rd7 Rc4+ 19.Kd3 Rc8 20.Re7 Rd8 21.Kd4 Bg2+ 22.Kc5 Rd5+ 23.Kc4 Rd8 24.Kc3 Rc8+ 25.Rc7 Re8 26.Kb2 Bd5 27.Ka3 Bb7 28.Rc4 Bd5 29.Kb2 Re2+ 30.Kb1 Re1+ 31.Kc2 Re2+ 32.Kd1 Re8 33.Rc5 Bc6 34.Rc3 Bb7 35.Kc2 Bd5 36.Kb2 Re2+ 37.Kc1 Re8 38.Kd2 Bc6 39.Rd3 Rc8 40.Kc3 Re8 41.Kb4 Ba8 42.Ka3 Be4 43.Rd7 Bg2 44.Re7 Rc8 45.Re2 Bb7 46.Rd2 Bd5 47.Rd3 Re8 48.Rc3 Bc6 49.Kb3 Rd8 50.Kc4 Rd5 51.Ra3 Rd8 52.Re3 Bb7 53.Kb3 Rc8 54.Re7 Rd8 55.Rxb7 Rd3+ 56.Kb4 Rd4+ 57.Kb5 Rd5+ 58.Kc4 Rd4+ 59.Kc5 Rc4+ 60.Kd5
 109/120+	9:57:28	567 457 740k	15 829k	+11,26	1.a8B
I'll let it run 12 more hours ...
latest dev-SF-McB 2.8a switches over to a8=B in the 2010 Mac Pro - somewhere between 30 and 75 minutes - depending on how lucky you get with smp...you might get one or two iterations over the next several hours without a full pv presented - 12 cores using 18 threads with 4GB hash - about 41.5M nps (~2.5G npm)

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 79	+9.07!	74.1G	29:45.67	a8=B! 
 78	+8.21 	4.85G	2:22.94	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Ra8 Kc3 Rd8 Kb2 Ba8 Kc1 Bc6 Rc5 Bh1 Rb5 Bc6 Rb1 Re8 Kb2 Rd8 Kc3 Bd5 Rb5 Bc 
 77	+8.21 	4.43G	2:10.77	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bf3 Kb2 Bc6 Ra3 Rc8 Kb1 Rd8 Kc1 Bh1 Rc3 Ba8 Rc5 Be4 Ra5 Bb7 Re5 Bc6 Re7 Bd 
 76	+8.21 	3.99G	1:57.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 75	+8.21 	3.77G	1:50.72	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 74	+8.21 	3.64G	1:46.54	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 73	+8.21 	3.60G	1:45.30	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 72	+8.21 	3.58G	1:44.70	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Kb4 Bc 
 71	+8.21 	3.55G	1:43.83	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Ba8 Ra5 Bb7 Rf5 Rd4+ Kc3 Rd5 Rf1 Re5 Ra1 Re8 Kc4 Ba8 Ra5 Bb7 Kd3 Bh1 Rc5 Bb7 Kd4 Bg2 Rf5 Rd8+ Kc4 Ba8 Rc5 Bb7 Re5 Bf3 Ra5 Bb7 Ra2 Bf3 Kc5  
 70	+8.21 	2.55G	1:15.92	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Ba8 Ra2 Rc8 Ra6 Rd8 Ra5 Bb7 Kb3 Bf3 Ra2 Bc6 Ra1 B 
 69	+8.21 	2.51G	1:14.66	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bc6 Re5 Bb7 Kc3 Bf3 Kb3 Bc6 Re7 Bh1 Re1 Bb7 Ka3 B 
 68	+8.21 	2.43G	1:12.10	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bc6 Re5 Bb7 Kc3 Bf3 Kb3 Bc6 Re7 Bh1 Re1 Bb7 Ka3 B 
 67	+8.21 	2.41G	1:11.51	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bf3 Rb5 Bg2 Rc5 Bh1 Ka3 Bb7 Rc7 Rd3+ Kb4 Rd4+ Kc3 
 66	+8.21 	2.38G	1:10.80	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bf3 Rb5 Bg2 Rc5 Bh1 Ka3 Bb7 Rc7 Rd3+ Kb4 Rd4+ Ka5 
 65	+8.21 	2.37G	1:10.34	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Ba8 Re3 Bg2 Re7 Bc6 Kb3 Bh1 Ka2 Bc6 Rc7 Bd5+ Kb2 Bc6 Kc3 Be4 Re7 Bc6 Re5 Bf3 Kb4 Bg2 Re3 Bd5 Kb5 Bg2 Re7 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 R 
 64	+8.21 	705.7M	0:20.96	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Ba8 Re3 Bg2 Re7 Bc6 Kb3 Bh1 Ka2 Bc6 Rc7 Bd5+ Kb2 Bc6 Kc3 Be4 Re7 Bc6 Re5 Bf3 Kb4 Bg2 Re3 Bd5 Kb5 Bg2 Re7 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7  
 63	+8.21 	684.9M	0:20.34	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Kc4 Rc8+ Kb4 Rd8 Ka3 Re8 Ra5 Rd8 Kb2 Bc6 Kc1 Ra8 Kd2 Rc8 Kd3 Rd8+ Kc2 Ra8 Kd1 Bb7 Kd2 Bc6 Kc3 Rd8 Kb4 Bb7 Ra2 Re8 Kc5 Re5+ Kc 
 62	+8.21 	589.2M	0:17.65	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 61	+8.21 	462.3M	0:14.05	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 60	+8.21 	431.6M	0:13.17	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 59	+8.21 	351.7M	0:10.74	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 B 
 58	+8.21 	331.3M	0:10.13	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 R 
 57	+8.21 	304.4M	0:09.31	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 R 
 56	+8.21 	259.7M	0:07.98	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 
 55	+8.21 	236.4M	0:07.27	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Kb4 Bc6 
 54	+8.21 	228.0M	0:07.01	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb3 Bc6 Kc4 Bg2 Re3 Bc6 Re5 Bh1 Kb4 Bf3 Rc5 Bg2 Ra5 Bc6 Ra6 Ba8 Kb3 Rd1 Kc2 Rd8 Ra5 
 53	+8.21 	168.9M	0:05.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb3 Bc6 Kc4 Bg2 Re3 Bc6 Re5 Bh1 Kb4 Bf3 Rc5 Bg2 Rc7 Bd5 Kc3 Bg2 Kc4 Bd5+ Kd4 Ba8+ Kc5 Re8 Re7 
 52	+8.21 	142.0M	0:04.43	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Rc7 Bd5 Kc3 Bg2 Rc5 Bb7 Re5 Bc6 Kc4 Bh1 Kb4 Bf3 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb5 Bg2 Re7 
 51	+8.21 	126.3M	0:03.96	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 Rc7 Re8 
 50	+8.21 	106.0M	0:03.35	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 Rc7 
 49	+8.21 	104.9M	0:03.31	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 
 48	+8.21 	102.4M	0:03.23	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Re5 Bg2 Ra5 Bb7+ Kb5 
 47	+8.21 	100.1M	0:03.16	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Re7 Bc6 Kc3 Ba8 Kb2 Rd2+ Kb3 Rd3+ Kc4 Rd8 Kb5 Bg2 Rc7 Bd5 
 46	+8.21 	50.2M  	0:01.62	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Re7 Bc6 Kc4 Bg2 Kb5 Bd5 Ka6 
 45	+8.21 	44.3M  	0:01.44	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Re7 Bc6 Rc7 Bd5+ Kb4 Bg2 Re7 
 44	+8.21 	40.7M  	0:01.32	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Kb2 Bc6 Rc5 Bg2 Ra5 
 43	+8.21 	39.7M  	0:01.29	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Re7 Bc6 Kc4 Bg2 Kb5 Bd5 Ka6 Ra8 Ka5 Rd8 Rc7 Bg2 Kb5 Bd5 Ka6 Ra8 Ka5 Rd8 Kb4 Bg2 Rc5 Bb7 Rc7 Bd5 Kc3 
 42	+8.21 	37.4M  	0:01.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kc5 Ba8 Kb5 Bg2 Re7 Bd5 Kb4 Bg2 Kc3 Rc8+ Kd4 Rd8+ Kc4 Ra8 Kc5 Rd8 Kb4 Rc8 Rc7 Re8 
 41	+8.21 	33.3M  	0:01.09	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb4 Ba8 Kc5 Bg2 Kb5 Bd5 Re7 Bg2 Kb4 Bc6 Kc3 Ba8 Re5 Bc6 Kb2 Bb7 Rc5 Bg2 
 40	+8.21 	32.6M  	0:01.06	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb4 Ba8 Kc5 Bg2 Kb5 Bd5 Re7 Bg2 Kb4 Rc8 Rd7 Re8 Kc3 Re3+ Kc4 Re8 Re7 Rc8+ Rc7 
 39	+8.21 	29.9M  	0:00.97	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kb4 Bc6 b7 Bxb7 Rxb7 Rd4+ Kc5 Rd5+ Kc6 
 38	+8.21 	27.1M  	0:00.88	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kc4 Bd5+ Kb4 Bc6 Rc7 Bd5 Kb5 
 37	+8.21 	26.5M  	0:00.86	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kc4 Bd5+ Kb4 Bc6 Kc3 Ba8 
 36	+8.21 	25.4M  	0:00.83	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb4 Rc4+ Kb3 Rc3+ Kb4 
 35	+8.21 	25.0M  	0:00.81	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb4 Rc4+ Kb3 Rc3+ Kb4 
 34	+8.21 	24.5M  	0:00.80	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb6 Rc6+ Kb5 Rc5+ Kb6 
 33	+8.21 	18.6M  	0:00.61	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Kb3 Bb7 Kb4 Bc6 Kc3 Ra8 Kc4 Rd8 Re5 Bg2 Re7 Bc6 Kc5 Ba8 Kb5 Bd5 b7 Bxb7 
 32	+8.21 	18.3M  	0:00.60	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Kb3 Bb7 Kb4 Bc6 Kc3 Ra8 Rc5 Bb7 Kd4 Re8 Kd3 Bc6 Kc4 Bg2 Kd3 
 31	+8.21 	17.2M  	0:00.56	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Re5 Bc6 Rc5 Bb7 Kc3 Bg2 Kb4 Re8 Kc4 Bb7 Rc7 
 30	+8.21 	16.9M  	0:00.55	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kc3 Bg2 Kd4 Bc6 Rc5 Bb7 Rc7 Rd8+ Ke5 Ba8 b7 Bxb7 Rxb7 Re8+ Kd4 Rd8+ Ke4 Rd4+ Kf5 Rd5+ Kg4 Rd4+ Kf3 Rd3+ Ke4 
 29	+8.21 	16.3M  	0:00.54	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Re7 Bd5 Re5 Bb7 Kc4 Bg2 Ra5 Bb7 Kb3 Bc6 Kc3 Ra8 Rc5 Bb7 Kd4 Re8 
 28	+8.21 	15.8M  	0:00.52	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bh1 Kb3 Bb7 Kc3 Bg2 Re5 Bc6 Kc4 Bg2 Re7 Bc6 b7 
 27	+8.21 	15.4M  	0:00.51	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bh1 Kb4 Bb7 Re5 Ba6 Re7 Rc8 Kb3 Rd8 Rc7 Ra8 
 26	+8.21 	15.4M  	0:00.51	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Rc8+ Kd4 Rd8+ Ke3 Ra8 b6 Bc6 Kd4 Rd8+ Kc4 Bb7 Re5 Bg2 Rc5 Bh1 Kb3 Bf3 Ra5 Bg2 Re5 Bc6 Rc5 Bg2 
 25	+8.21 	14.8M  	0:00.49	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bb7 Kc3 Bg2 Re5 Bc6 Kc4 Bg2 Kc5 Bb7 Re7 Bd5 Kb4 Bc6 b7 
 24	+8.21 	14.5M  	0:00.48	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bg2 Kc3 Rd8 Re5 Bc6 Re7 Ba8 b7 Bxb7 Rxb7 Rc8+ Kd4 Rd8+ Ke5 Re8+ Kd6 Rd8+ Kc6 Rc8+ Kd5 Rd8+ Ke4 Re8+ Kd3 Rd8+ Kc4 Rc8+ Kb3 Rc3+ Kb4 Rc4+ Kb5 Rc5+ Kb4 
 23	+8.60 	13.8M  	0:00.45	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kb4 Rd8 Kc4 Bh1 Re5 Bb7 Kc3 Bg2 Ra5 Re8 Rc5 Be4 Kb3 Bb7 Kc4 Rd8 
 22	+8.60 	13.6M  	0:00.45	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kb4 Rd8 Kc4 Bh1 Rc7 Bg2 Kb5 Bd5 Kb4 Bf3 Re7 Ba8 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Rc8 Kb4 
 21	+11.75 	8.38M  	0:00.28	Ra6 Rc8 b4 Rc4 Ra5 Rxb4+ Kc3 Rb6 a8=Q Rc6+ Kd2 Rc2+ Ke3 Rc3+ Kf2 Rc2+ Ke1 Re2+ Kf1 Rf2+ Kg1 Re2 Ra6 Re5 Kf2 Rf5+ Ke2 Re5+ Kd3 Re3+ Kd4 Re1 Ra3 Rd1+ Ke3 Re1+ Kd2 
 20	+10.75 	6.47M  	0:00.21	Ra6 Rc8 b4 Ra8 Ra5 Rc8 b5 Rc5 Kb3 Rc1 b6 Rb1+ Kc4 Rxb6 a8=Q Rc6+ Kd4 Rc4+ Kd3 Rc3+ Ke4 Re3+ Kd5 Rd3+ Ke5 Rd8 Qa6 Rb8 Qa7 
 19	+8.85 	2.02M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke3 Rd8 Rc5 Re8+ Kd3 Rd8+ Kc3 Re8 
 18	+8.85 	1.99M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke5 
 17	+8.85 	1.97M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke5 Rd5+ Ke4 
 16	+8.85 	1.94M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kb3 Re8 Rc5 Bh1 Kc3 Ba8 Kd4 
 15	+6.62 	767686	0:00.03	b4 Rc8 Ra6 Ra8 Kc3 Bd7 Ra5 Bc8 b5 Bb7 Kc4 Rc8+ Kd4 Ra8 b6 Re8 Re5 Re6 Rxe6 
 14	+7.59 	614710	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kb3 Bc8 b6 Bb7 Re5 Rc8 Kb4 Bg2 Kb5 Bf1+ Ka5 Ra8 Re7 Bg2 Kb4 
 13	+7.42 	584102	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kb3 Bc8 b6 Bb7 Re5 Rc8 Kb4 Ba8 Re7 Bc6 
 12	+7.24 	563160	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kc3 Bg4 b6 Bf3 Re5 Rd8 Kb4 Bd1 Re7 
 11	+4.76 	84844  	0:00.00	Rb8 Rc8 Rb7 Rd8 Kc3 Rc8+ Kd3 Ra8 b4 Rd8+ Kc3 Rc8+ Kd4 Rd8+ Ke5 
 10	+4.42 	71201  	0:00.00	Rb8 Rc8 Rb7 Ra8 Kc3 Rc8+ Kb4 Rd8 Re7 Ra8 Kc5 Rd8 
  9	+5.40 	53362  	0:00.00	Rb8 Rc2+ Ka3 Rc8 a8=Q Rxb8 Qf3 Bb5 Qd5 Ba6 
  8	+6.75 	34489  	0:00.00	a8=R Rc2+ Kb1 Rc8 Ra7 Rc3 Rb8 Re3 Kc2 Re4 
  7	+6.51 	21359  	0:00.00	a8=R Rc8 Ra7 Rd8 Rbb7 Bc6 Rxf7 Be4 b4 
  6	+5.97 	19304  	0:00.00	a8=R Rc8 Ra7 Rd8 Re7 Bd7 Ka3 
  5	+9.78 	7484    	0:00.00	a8=Q Rc2+ Ka1 Rc1+ Ka2 Re1 Qd5 
  4	+13.50 	3623    	0:00.00	a8=Q Rc2+ Ka3 Re2 Qf3 
  3	+9.72 	2702    	0:00.00	a8=Q Rc2+ Kb1 Re2 
  2	+9.67 	1850    	0:00.00	a8=Q Rc2+ Kb1 
  1	+15.20 	610      	0:00.00	a8=Q Rc2+ Kxc2 
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peter
Posts: 3410
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: A hard endgame (?) study

Post by peter »

Eelco de Groot wrote: I inserted the move 7. b4 in Herbert's pgn; 2. Bd5 {!!} Bc6 3. Bxc6 Ra8 4. Ba4 Re8 5. Ka3 Ra8 6. Re6 fxe6 7. b4

I get a little less now after 2. Bd5. It is difficult to keep the PV goning backwards but with 7. b4 instead of 7. Kb2 it looks like you can shorten the mate distance.

...

And a different run would confirm #26:

[d]2r1b1k1/5pPp/1R3P1P/3B4/8/1P6/1K6/8 b - -

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

79 782:31 +M26 2...Bc6 3.Bxc6 Ra8 4.Ba4 Re8 5.Ka3 Ra8
6.Re6 fxe6 7.b4 Kf7 8.Kb3 Rc8 9.Bb5 Rd8
10.Bc6 Rd3+ 11.Kc2 Rg3 12.Be4 Kxf6
13.Bxh7 Rg2+ 14.Kd3 Rg3+ 15.Ke4 Rg4+ (485.863.748.712) 10348
You might be right. I had 7.Kb4 in my .pgn, but b4 instead made the line to mate shorter for one move for me too.

So it's #28 from starting position with 2.Bd5 as it seems.

After 1.a8B Rc8:

644: Sokolsky -,- - Vincent L.,H, 1938, #34oder33 2017
B1r1b1k1/5pPp/1R3P1P/8/8/1P6/1K6/8 w - - 0 1

Analysis by Stockfish 060917 64 POPCNT:

2.Ld5 Lc6 3.Lxc6 Ta8 4.La4 Te8 5.Ka3 Ta8 6.Te6 fxe6 7.b4 Kf7 8.Kb3 Tc8 9.Ld7 Td8 10.Lc6 Td3+ 11.Kc4 Td8 12.Le4 Tc8+ 13.Kd3 Td8+ 14.Ke3 Kxf6 15.Lxh7 Kg5 16.g8T+ Txg8 17.Lxg8 Kxh6 18.b5 Kg7 19.b6 Kxg8 20.b7 Kf7 21.Kd4 Kf6 22.b8D Kg7 23.Ke5 Kf7 24.Dh8 Kg6 25.Df6+ Kh7 26.Dg5 Kh8 27.Kf6 Kh7 28.Dg7#
+- (#27) Tiefe: 81/54 00:05:18 12572MN
Peter.
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MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: A hard endgame (?) study

Post by MikeB »

MikeB wrote:
Vinvin wrote:
Nordlandia wrote:Sokolsky - Ravinsky, USSR 1938 (or 1933)

a8=B is supposed to win, however no engine see a breakthrough.

[d]4b1k1/P4pPp/1R3P1P/2r5/8/1P6/1K6/8 w - - 0 0

https://timkr.home.xs4all.nl/chess2/minor.htm
Finally found by SF after 9h57m ! (see last line)
CPU 6*4GHz, 8 GB hash

Code: Select all

Stockfish_170810_x64_modern:
...
 [snip]
 108/119	3:10:09	184 192 550k	16 143k	+11,19	1.b4 Rc8 2.Ra6 Bb5 3.Ra5 Bc6 4.b5 Re8 5.b6 Re2+ 6.Kc3 Re8 7.Rc5 Re3+ 8.Kd2 Re8 9.Rc3 Rd8+ 10.Kc2 Bd5 11.Kb2 Bc6 12.Re3 Bb7 13.Re5 Rc8 14.Ka3 Rd8 15.Kb4 Rd4+ 16.Kc3 Re4 17.Re7 Bd5 18.Rd7 Rc4+ 19.Kd3 Rc8 20.Re7 Rd8 21.Kd4 Bg2+ 22.Kc5 Rd5+ 23.Kc4 Rd8 24.Kc3 Rc8+ 25.Rc7 Re8 26.Kb2 Bd5 27.Ka3 Bb7 28.Rc4 Bd5 29.Kb2 Re2+ 30.Kb1 Re1+ 31.Kc2 Re2+ 32.Kd1 Re8 33.Rc5 Bc6 34.Rc3 Bb7 35.Kc2 Bd5 36.Kb2 Re2+ 37.Kc1 Re8 38.Kd2 Bc6 39.Rd3 Rc8 40.Kc3 Re8 41.Kb4 Ba8 42.Ka3 Be4 43.Rd7 Bg2 44.Re7 Rc8 45.Re2 Bb7 46.Rd2 Bd5 47.Rd3 Re8 48.Rc3 Bc6 49.Kb3 Rd8 50.Kc4 Rd5 51.Ra3 Rd8 52.Re3 Bb7 53.Kb3 Rc8 54.Re7 Rd8 55.Rxb7 Rd3+ 56.Kb4 Rd4+ 57.Kb5 Rd5+ 58.Kc4 Rd4+ 59.Kc5 Rc4+ 60.Kd5
 109/120+	9:57:28	567 457 740k	15 829k	+11,26	1.a8B
I'll let it run 12 more hours ...
latest dev-SF-McB 2.8a switches over to a8=B in the 2010 Mac Pro - somewhere between 30 and 75 minutes - depending on how lucky you get with smp...you might get one or two iterations over the next several hours without a full pv presented - 12 cores using 18 threads with 4GB hash - about 41.5M nps (~2.5G npm)

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 79	+9.07!	74.1G	29:45.67	a8=B! 
 78	+8.21 	4.85G	2:22.94	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Ra8 Kc3 Rd8 Kb2 Ba8 Kc1 Bc6 Rc5 Bh1 Rb5 Bc6 Rb1 Re8 Kb2 Rd8 Kc3 Bd5 Rb5 Bc 
 77	+8.21 	4.43G	2:10.77	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bf3 Kb2 Bc6 Ra3 Rc8 Kb1 Rd8 Kc1 Bh1 Rc3 Ba8 Rc5 Be4 Ra5 Bb7 Re5 Bc6 Re7 Bd 
 76	+8.21 	3.99G	1:57.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 75	+8.21 	3.77G	1:50.72	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 74	+8.21 	3.64G	1:46.54	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 73	+8.21 	3.60G	1:45.30	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Rb2 Bf 
 72	+8.21 	3.58G	1:44.70	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Rb3 Ba8 Re3 Bc6 Ka3 Bg2 Kb3 Bc6 Re5 Ra8 Kc2 Rd8 Rb5 Ra8 Rc5 Rd8 Ra5 Bd5 Kc3 Bc6 Ra1 Rc8 Re1 Rd8 Re7 Ba8 Re2 Bc6 Ra2 Ba8 Kc4 Bf3 Kc5 Ba8 Kb4 Bc 
 71	+8.21 	3.55G	1:43.83	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Ba8 Ra5 Bb7 Rf5 Rd4+ Kc3 Rd5 Rf1 Re5 Ra1 Re8 Kc4 Ba8 Ra5 Bb7 Kd3 Bh1 Rc5 Bb7 Kd4 Bg2 Rf5 Rd8+ Kc4 Ba8 Rc5 Bb7 Re5 Bf3 Ra5 Bb7 Ra2 Bf3 Kc5  
 70	+8.21 	2.55G	1:15.92	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Ba8 Ra2 Rc8 Ra6 Rd8 Ra5 Bb7 Kb3 Bf3 Ra2 Bc6 Ra1 B 
 69	+8.21 	2.51G	1:14.66	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bc6 Re5 Bb7 Kc3 Bf3 Kb3 Bc6 Re7 Bh1 Re1 Bb7 Ka3 B 
 68	+8.21 	2.43G	1:12.10	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bc6 Re5 Bb7 Kc3 Bf3 Kb3 Bc6 Re7 Bh1 Re1 Bb7 Ka3 B 
 67	+8.21 	2.41G	1:11.51	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bf3 Rb5 Bg2 Rc5 Bh1 Ka3 Bb7 Rc7 Rd3+ Kb4 Rd4+ Kc3 
 66	+8.21 	2.38G	1:10.80	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Ra1 Bb7 Kc4 Bd5+ Kb4 Bc6 Re1 Bf3 Re7 Bg2 Kc3 Ba8 Re2 Bc6 Ra2 Ba8 Ra5 Bg2 Kb4 Bf3 Rb5 Bg2 Rc5 Bh1 Ka3 Bb7 Rc7 Rd3+ Kb4 Rd4+ Ka5 
 65	+8.21 	2.37G	1:10.34	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Ba8 Re3 Bg2 Re7 Bc6 Kb3 Bh1 Ka2 Bc6 Rc7 Bd5+ Kb2 Bc6 Kc3 Be4 Re7 Bc6 Re5 Bf3 Kb4 Bg2 Re3 Bd5 Kb5 Bg2 Re7 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 R 
 64	+8.21 	705.7M	0:20.96	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Ba8 Re3 Bg2 Re7 Bc6 Kb3 Bh1 Ka2 Bc6 Rc7 Bd5+ Kb2 Bc6 Kc3 Be4 Re7 Bc6 Re5 Bf3 Kb4 Bg2 Re3 Bd5 Kb5 Bg2 Re7 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7  
 63	+8.21 	684.9M	0:20.34	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kb4 Bc6 Ra6 Bg2 Kc5 Ba8 Kc4 Rc8+ Kb4 Rd8 Ka3 Re8 Ra5 Rd8 Kb2 Bc6 Kc1 Ra8 Kd2 Rc8 Kd3 Rd8+ Kc2 Ra8 Kd1 Bb7 Kd2 Bc6 Kc3 Rd8 Kb4 Bb7 Ra2 Re8 Kc5 Re5+ Kc 
 62	+8.21 	589.2M	0:17.65	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 61	+8.21 	462.3M	0:14.05	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 60	+8.21 	431.6M	0:13.17	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 R 
 59	+8.21 	351.7M	0:10.74	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Ka6 B 
 58	+8.21 	331.3M	0:10.13	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 R 
 57	+8.21 	304.4M	0:09.31	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 R 
 56	+8.21 	259.7M	0:07.98	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Re7 Rc8 Rc7 
 55	+8.21 	236.4M	0:07.27	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Ra5 Bf3 Ka3 Bc6 Kb2 Rc8 Re5 Rd8 Kc3 Bf3 Kc4 Bh1 Kb4 Bf3 Re7 Bg2 Kb3 Bc6 Kc4 Bg2 Kc5 Ba8 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Kb5 Re8 Kb4 Bc6 
 54	+8.21 	228.0M	0:07.01	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb3 Bc6 Kc4 Bg2 Re3 Bc6 Re5 Bh1 Kb4 Bf3 Rc5 Bg2 Ra5 Bc6 Ra6 Ba8 Kb3 Rd1 Kc2 Rd8 Ra5 
 53	+8.21 	168.9M	0:05.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb3 Bc6 Kc4 Bg2 Re3 Bc6 Re5 Bh1 Kb4 Bf3 Rc5 Bg2 Rc7 Bd5 Kc3 Bg2 Kc4 Bd5+ Kd4 Ba8+ Kc5 Re8 Re7 
 52	+8.21 	142.0M	0:04.43	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kc4 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Rc7 Bd5 Kc3 Bg2 Rc5 Bb7 Re5 Bc6 Kc4 Bh1 Kb4 Bf3 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb5 Bg2 Re7 
 51	+8.21 	126.3M	0:03.96	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 Rc7 Re8 
 50	+8.21 	106.0M	0:03.35	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 Rc7 
 49	+8.21 	104.9M	0:03.31	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Rd7 Bf3 Ka5 Rc8 
 48	+8.21 	102.4M	0:03.23	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bf3 Rc5 Bg2 Kc4 Bb7 Ra5 Bf3 Ra3 Bd5+ Kc5 Bg2 Kb4 Bc6 Re3 Bb7 Kc3 Bc6 Re7 Ba8 Kc4 Bc6 Kb4 Bg2 Kb5 Bd5 Ka6 Ra8 Re5 Bg2 Ra5 Bb7+ Kb5 
 47	+8.21 	100.1M	0:03.16	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Re7 Bc6 Kc3 Ba8 Kb2 Rd2+ Kb3 Rd3+ Kc4 Rd8 Kb5 Bg2 Rc7 Bd5 
 46	+8.21 	50.2M  	0:01.62	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Re7 Bc6 Kc4 Bg2 Kb5 Bd5 Ka6 
 45	+8.21 	44.3M  	0:01.44	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Re7 Bc6 Rc7 Bd5+ Kb4 Bg2 Re7 
 44	+8.21 	40.7M  	0:01.32	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Kc4 Bh1 Rc5 Bb7 Ra5 Bf3 Kc3 Bc6 Rc5 Bf3 Kb3 Bg2 Kb4 Bb7 Re5 Bg2 Kc3 Bc6 Kb3 Bb7 Kb2 Bc6 Rc5 Bg2 Ra5 
 43	+8.21 	39.7M  	0:01.29	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Re7 Bc6 Kc4 Bg2 Kb5 Bd5 Ka6 Ra8 Ka5 Rd8 Rc7 Bg2 Kb5 Bd5 Ka6 Ra8 Ka5 Rd8 Kb4 Bg2 Rc5 Bb7 Rc7 Bd5 Kc3 
 42	+8.21 	37.4M  	0:01.22	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kc5 Ba8 Kb5 Bg2 Re7 Bd5 Kb4 Bg2 Kc3 Rc8+ Kd4 Rd8+ Kc4 Ra8 Kc5 Rd8 Kb4 Rc8 Rc7 Re8 
 41	+8.21 	33.3M  	0:01.09	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb4 Ba8 Kc5 Bg2 Kb5 Bd5 Re7 Bg2 Kb4 Bc6 Kc3 Ba8 Re5 Bc6 Kb2 Bb7 Rc5 Bg2 
 40	+8.21 	32.6M  	0:01.06	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bd5+ Kb4 Ba8 Kc5 Bg2 Kb5 Bd5 Re7 Bg2 Kb4 Rc8 Rd7 Re8 Kc3 Re3+ Kc4 Re8 Re7 Rc8+ Rc7 
 39	+8.21 	29.9M  	0:00.97	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kb4 Bc6 b7 Bxb7 Rxb7 Rd4+ Kc5 Rd5+ Kc6 
 38	+8.21 	27.1M  	0:00.88	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kc4 Bd5+ Kb4 Bc6 Rc7 Bd5 Kb5 
 37	+8.21 	26.5M  	0:00.86	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 Re7 Bd5 Kb5 Bg2 Kc4 Bd5+ Kb4 Bc6 Kc3 Ba8 
 36	+8.21 	25.4M  	0:00.83	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb4 Rc4+ Kb3 Rc3+ Kb4 
 35	+8.21 	25.0M  	0:00.81	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb4 Rc4+ Kb3 Rc3+ Kb4 
 34	+8.21 	24.5M  	0:00.80	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Bc6 Kc2 Bb7 b6 Re8 Kb3 Rd8 Kb4 Bc6 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Bg2 Kb5 Bd5 Kc5 Ba8 b7 Bxb7 Rxb7 Rc8+ Kb6 Rc6+ Kb5 Rc5+ Kb6 
 33	+8.21 	18.6M  	0:00.61	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Kb3 Bb7 Kb4 Bc6 Kc3 Ra8 Kc4 Rd8 Re5 Bg2 Re7 Bc6 Kc5 Ba8 Kb5 Bd5 b7 Bxb7 
 32	+8.21 	18.3M  	0:00.60	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Kb3 Bb7 Kb4 Bc6 Kc3 Ra8 Rc5 Bb7 Kd4 Re8 Kd3 Bc6 Kc4 Bg2 Kd3 
 31	+8.21 	17.2M  	0:00.56	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kd3 Rd8+ Kc3 Bc6 Kb2 Bf3 Re5 Bc6 Rc5 Bb7 Kc3 Bg2 Kb4 Re8 Kc4 Bb7 Rc7 
 30	+8.21 	16.9M  	0:00.55	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kc4 Rd8 Ra5 Re8 Kc3 Bg2 Kd4 Bc6 Rc5 Bb7 Rc7 Rd8+ Ke5 Ba8 b7 Bxb7 Rxb7 Re8+ Kd4 Rd8+ Ke4 Rd4+ Kf5 Rd5+ Kg4 Rd4+ Kf3 Rd3+ Ke4 
 29	+8.21 	16.3M  	0:00.54	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Re7 Bd5 Re5 Bb7 Kc4 Bg2 Ra5 Bb7 Kb3 Bc6 Kc3 Ra8 Rc5 Bb7 Kd4 Re8 
 28	+8.21 	15.8M  	0:00.52	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bh1 Kb3 Bb7 Kc3 Bg2 Re5 Bc6 Kc4 Bg2 Re7 Bc6 b7 
 27	+8.21 	15.4M  	0:00.51	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bh1 Kb4 Bb7 Re5 Ba6 Re7 Rc8 Kb3 Rd8 Rc7 Ra8 
 26	+8.21 	15.4M  	0:00.51	Ra6 Rc8 b4 Rc4 Ra5 Rc8 b5 Rd8 Kc3 Rc8+ Kd4 Rd8+ Ke3 Ra8 b6 Bc6 Kd4 Rd8+ Kc4 Bb7 Re5 Bg2 Rc5 Bh1 Kb3 Bf3 Ra5 Bg2 Re5 Bc6 Rc5 Bg2 
 25	+8.21 	14.8M  	0:00.49	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Rc7 Bd5+ Kb4 Rd8 Kc5 Be4 Kc4 Bg2 Rc5 Bb7 Kc3 Bg2 Re5 Bc6 Kc4 Bg2 Kc5 Bb7 Re7 Bd5 Kb4 Bc6 b7 
 24	+8.21 	14.5M  	0:00.48	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bg2 Kc3 Rd8 Re5 Bc6 Re7 Ba8 b7 Bxb7 Rxb7 Rc8+ Kd4 Rd8+ Ke5 Re8+ Kd6 Rd8+ Kc6 Rc8+ Kd5 Rd8+ Ke4 Re8+ Kd3 Rd8+ Kc4 Rc8+ Kb3 Rc3+ Kb4 Rc4+ Kb5 Rc5+ Kb4 
 23	+8.60 	13.8M  	0:00.45	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kb4 Rd8 Kc4 Bh1 Re5 Bb7 Kc3 Bg2 Ra5 Re8 Rc5 Be4 Kb3 Bb7 Kc4 Rd8 
 22	+8.60 	13.6M  	0:00.45	Ra6 Rc8 b4 Ra8 Ra5 Bd7 b5 Bc8 b6 Bb7 Kb3 Bc6 Rc5 Bb7 Kb4 Rd8 Kc4 Bh1 Rc7 Bg2 Kb5 Bd5 Kb4 Bf3 Re7 Ba8 Re5 Bb7 Rc5 Bg2 Kc4 Bb7 Rc7 Rc8 Kb4 
 21	+11.75 	8.38M  	0:00.28	Ra6 Rc8 b4 Rc4 Ra5 Rxb4+ Kc3 Rb6 a8=Q Rc6+ Kd2 Rc2+ Ke3 Rc3+ Kf2 Rc2+ Ke1 Re2+ Kf1 Rf2+ Kg1 Re2 Ra6 Re5 Kf2 Rf5+ Ke2 Re5+ Kd3 Re3+ Kd4 Re1 Ra3 Rd1+ Ke3 Re1+ Kd2 
 20	+10.75 	6.47M  	0:00.21	Ra6 Rc8 b4 Ra8 Ra5 Rc8 b5 Rc5 Kb3 Rc1 b6 Rb1+ Kc4 Rxb6 a8=Q Rc6+ Kd4 Rc4+ Kd3 Rc3+ Ke4 Re3+ Kd5 Rd3+ Ke5 Rd8 Qa6 Rb8 Qa7 
 19	+8.85 	2.02M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke3 Rd8 Rc5 Re8+ Kd3 Rd8+ Kc3 Re8 
 18	+8.85 	1.99M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke5 
 17	+8.85 	1.97M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kd4 Rd8+ Ke3 Re8+ Kf4 Ba8 Rc5 Rd8 Rc7 Rd4+ Ke5 Rd5+ Ke4 
 16	+8.85 	1.94M  	0:00.07	Ra6 Rc8 b4 Ra8 Ra5 Bd7 Kc3 Rc8+ Kd4 Bc6 b5 Rd8+ Kc3 Bb7 b6 Rc8+ Kb3 Re8 Rc5 Bh1 Kc3 Ba8 Kd4 
 15	+6.62 	767686	0:00.03	b4 Rc8 Ra6 Ra8 Kc3 Bd7 Ra5 Bc8 b5 Bb7 Kc4 Rc8+ Kd4 Ra8 b6 Re8 Re5 Re6 Rxe6 
 14	+7.59 	614710	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kb3 Bc8 b6 Bb7 Re5 Rc8 Kb4 Bg2 Kb5 Bf1+ Ka5 Ra8 Re7 Bg2 Kb4 
 13	+7.42 	584102	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kb3 Bc8 b6 Bb7 Re5 Rc8 Kb4 Ba8 Re7 Bc6 
 12	+7.24 	563160	0:00.02	b4 Rc7 Ra6 Rc8 b5 Ra8 Ra5 Bd7 Kc3 Bg4 b6 Bf3 Re5 Rd8 Kb4 Bd1 Re7 
 11	+4.76 	84844  	0:00.00	Rb8 Rc8 Rb7 Rd8 Kc3 Rc8+ Kd3 Ra8 b4 Rd8+ Kc3 Rc8+ Kd4 Rd8+ Ke5 
 10	+4.42 	71201  	0:00.00	Rb8 Rc8 Rb7 Ra8 Kc3 Rc8+ Kb4 Rd8 Re7 Ra8 Kc5 Rd8 
  9	+5.40 	53362  	0:00.00	Rb8 Rc2+ Ka3 Rc8 a8=Q Rxb8 Qf3 Bb5 Qd5 Ba6 
  8	+6.75 	34489  	0:00.00	a8=R Rc2+ Kb1 Rc8 Ra7 Rc3 Rb8 Re3 Kc2 Re4 
  7	+6.51 	21359  	0:00.00	a8=R Rc8 Ra7 Rd8 Rbb7 Bc6 Rxf7 Be4 b4 
  6	+5.97 	19304  	0:00.00	a8=R Rc8 Ra7 Rd8 Re7 Bd7 Ka3 
  5	+9.78 	7484    	0:00.00	a8=Q Rc2+ Ka1 Rc1+ Ka2 Re1 Qd5 
  4	+13.50 	3623    	0:00.00	a8=Q Rc2+ Ka3 Re2 Qf3 
  3	+9.72 	2702    	0:00.00	a8=Q Rc2+ Kb1 Re2 
  2	+9.67 	1850    	0:00.00	a8=Q Rc2+ Kb1 
  1	+15.20 	610      	0:00.00	a8=Q Rc2+ Kxc2 
  0
latest SF-McB v9 based on SF 9, sees a8=B in less than 5 minutes on this first run

Code: Select all

	white viewpoint		fewer / Multi-PV setting = 1 / more
exclude: none best +tail                                          
dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 68	+10.16!	37.9G	21:18.46	a8=B! 
 68	+9.41!	23.3G	13:14.92	a8=B! 
 68	+8.66!	14.2G	8:13.31	a8=B! 
 68	+7.91!	8.17G	4:48.06	a8=B! 
 67	+7.16 	3.66G	2:10.70	b4 Rc8 Ra6 Ra8 Ra5 Rd8 b5 Bc6 b6 Rd2+ Kb3 Rd8 Rc5 Bf3 Kb4 Bb7 Rc7 Bh1 Kc3 Bd5 Re7 Bf3 Kc4 Bd5+ Kb5 Bf3 Kb4 Bd5 Ka4 Bg2 Re5 Bf3 Kb3 Bc6 Re7 Bf3 Ka2 Bd5+ Kb1 Bf3 Rc7 Bd5 Kc1 Be4 Kb2 Bg2 Kc2 Bd5 Rc5 Bf3 Ra5 Bc6 Kb3 Bb7 Kc4 Bc6 Kc3  
 66	+7.16 	1.43G	0:50.65	b4 Rc8 Ra6 Ra8 Ra5 Rd8 b5 Bc6 b6 Rd2+ Kb3 Rd8 Rc5 Bf3 Kb4 Bb7 Rc7 Bh1 Kc3 Bd5 Re7 Bf3 Kc4 Bd5+ Kb5 Bf3 Kb4 Bd5 Ka4 Bg2 Re5 Bf3 Kb3 Bc6 Kc3 Bf3 Re7 Ba8 Kb3 Bd5+ Kc2 Bf3 Rc7 Bd5 Rc5 Bf3 Kc1 Bc6 Re5 Bf3 Kb2 Bg2 Ra5 Bc6 Rc5 Bb7 Kb1  
 65
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