MikeGL wrote: ↑Sat Sep 05, 2020 6:48 am
yes I agree, Bf8 is nothing and very simple for any engines because Rg8 move was already played on the board.
But that line (with Bf8) cannot be reached without first figuring out Rg8 prior to Bf8.
Only after Rg8 can Bf8 be very useful and logical later, which clears the g-file.
Again, Bf8 is very easy even for weak engines because 11... Rg8 is already waiting to be activated.
If there's one strong positional move made on this game, I think this is 11... Rg8! of black which is not easy to find for A/B engine and the strength of this Rg8 will be uncorked later after Bf8. In short, Bf8 is nothing and Rg8 is the real deal.
Cfish with Use NNUE Pure at a single try with empty hash (LC0 had a move history already in the game, even if it seems, it was only 4 moves long?)
[d]r3k2r/pp1nppb1/2pp1n1p/q7/P2PP1b1/2NQ1N2/1PP1BPP1/R1B2RK1 b kq - 0 1
Analysis by Cfish 040920 64 POPCNT NUMA:
Code: Select all
11...0-0-0 12.Ne1 Rdg8 13.Bxg4 Nxg4
= (0.22) Depth: 7/7 00:00:00 42kN
11...Rg8 12.Nh2 Bxe2 13.Nxe2 c5 14.Be3 cxd4 15.Nxd4
+/= (0.62) Depth: 8/10 00:00:00 96kN
...
11...Rg8 12.Rd1 Qh5 13.Bf4 Bxf3 14.Qxf3 Qxf3 15.Bxf3 h5 16.a5 a6 17.Ne2 e5 18.dxe5 dxe5 19.Bg5 Bf8 20.Bxf6 Nxf6 21.Ng3 Rd8 22.Rxd8+ Kxd8 23.Rd1+ Kc7 24.Nxh5 Nxh5
+/- (1.13) Depth: 24/33 00:00:12 112MN
11...Qh5
+/- (1.05 ++) Depth: 25/39 00:00:15 143MN
11...Rg8
+/- (0.97 ++) Depth: 25/39 00:00:20 184MN
11...Rg8 12.Rd1
+/- (1.21 --) Depth: 25/39 00:00:21 191MN
11...Qh5
+/- (1.02 ++) Depth: 25/39 00:00:22 201MN
11...Qh5 12.Rd1 e6 13.a5 Rg8 14.Bf4 Bf8 15.a6 b5 16.e5 dxe5 17.Nxe5 Nxe5 18.dxe5 Bxe2 19.Nxe2 Nd5 20.c4 bxc4 21.Qxc4 Rc8 22.Rd4 Rg4 23.f3 Rxf4 24.Nxf4 Qxe5 25.Nxd5
+/- (0.86) Depth: 25/39 00:00:26 238MN
11...Qh5 12.Rd1
+/- (0.94 --) Depth: 26/39 00:00:27 242MN
11...Qh5 12.Rd1
+/- (1.02 --) Depth: 26/39 00:00:27 244MN
11...Rg8 12.Rd1 e6 13.b4 Qh5 14.a5 a6 15.Bf4 Bf8 16.e5 dxe5 17.dxe5 Nd5 18.Nxd5 exd5 19.c4 dxc4 20.Qe3 Rg6 21.Rdc1 b5 22.axb6 Nxb6 23.Qxb6 Bxf3 24.Bxf3 Qxf3 25.Bg3 Qd5 26.Rd1 c5 27.Qc7
+/- (1.10) Depth: 26/39 00:00:28 256MN
...
11...Rg8 12.Rd1 Bf8 13.Nh2 Bh5 14.Rb1 Bxe2 15.Qxe2 Qh5 16.Qxh5 Nxh5 17.g3 e6 18.Nf3 Nhf6 19.Kg2 d5 20.e5 Ng4 21.Ne2 f6 22.Nf4 fxe5 23.dxe5 Ndxe5 24.Nxe5 Nxe5 25.Nxe6 Kd7
+/- (1.24) Depth: 28/42 00:00:51 458MN
...
11...Rg8 12.Rd1 e6 13.Bf4 Bf8 14.d5 cxd5 15.exd5 e5 16.Be3 Be7 17.Nh2 Bh5 18.Bxh5 Nxh5 19.Qe2 Ng7 20.Ng4 f5 21.b4 Qxb4 22.Nxh6 Rh8 23.Nb5 Qe4 24.Nc7+ Kf8 25.Ne6+ Nxe6 26.dxe6 Nf6 27.f3 Qh4 28.Nxf5
+/- (1.06) Depth: 29/46 00:00:59 532MN
11...Rg8
+/- (0.98 ++) Depth: 30/33 00:01:01 550MN
11...Qh5
+/- (0.89 ++) Depth: 30/41 00:01:18 703MN
...
11...Qh5 12.Rd1 Rg8 13.Bf4 Qg6 14.Nh4 Qh5 15.Nf5 Bf8 16.Bg3 Bxe2 17.Nxe2 Qg6 18.Nf4 Qg5 19.a5 e6 20.a6 b5 21.Nh4 Qg4 22.Qe3 Be7 23.Nf3 h5 24.b4 Nb6 25.d5 Nc4 26.Qd3 h4
+/- (0.97) Depth: 30/45 00:01:34 846MN
11...Qh5 12.Rd1
+/- (1.05 --) Depth: 31/46 00:01:40 893MN
11...Rg8
+/- (0.97 ++) Depth: 31/46 00:01:45 944MN
11...Rg8 12.Rd1
+/- (1.13 --) Depth: 31/46 00:01:51 994MN
11...Rg8 12.Rd1 Qh5 13.Bf4 Qg6 14.Nh4 Qh5 15.Nf5 Bf8 16.a5 a6 17.Bg3 Bxe2 18.Nxe2 Qg4 19.f3 Qg5 20.Ne3 e6 21.Kf2 d5 22.exd5 Nxd5 23.Nxd5 exd5 24.Qe3+ Qxe3+ 25.Kxe3 0-0-0 26.Kf2 Re8 27.Re1 Bb4 28.c3 Be7 29.Nf4 Nf8 30.Re3
+/- (1.17) Depth: 31/46 00:02:00 1073MN
...
11...Rg8 12.Rd1 Bf8 13.Nh2 h5 14.Bd2 Bxe2 15.Nxe2 Qa6 16.Qxa6 bxa6 17.f3 h4 18.b4 e6 19.Rdb1 c5 20.c3 h3 21.g4 Rc8 22.Kf2 cxd4 23.cxd4 Nb6 24.Nf1 Nc4 25.b5 Nxd2 26.Nxd2
+/- (1.05) Depth: 32/48 00:02:09 1150MN
And after switching to MultiPV=2, output in depth 34:
r3k2r/pp1nppb1/2pp1n1p/q7/P2PP1b1/2NQ1N2/1PP1BPP1/R1B2RK1 b kq - 0 1
Analysis by Cfish 040920 64 POPCNT NUMA:
1. +/- (1.34): 11...Rg8 12.Rd1 Qh5 13.Bf4 e5 14.Bg3 a5 15.Rab1 Bf8 16.b4 axb4 17.Rxb4 exd4 18.Nxd4 Bxe2 19.Ndxe2 Nc5 20.Qd4 Ng4 21.f3 Ne5 22.Qf2 Qg6 23.Bh2 Be7 24.Ng3 Bh4 25.Nce2 Rxa4 26.Rxa4 Nxa4 27.Qd4 Nc5 28.Kh1 Ned7 29.Qxd6 Qxd6 30.Rxd6 Bxg3 31.Nxg3 Rg6 32.Nf5 h5 33.Rd4 Ne6
2. +/- (1.13): 11...Qh5 12.Rd1 Rg8 13.Bf4 e5 14.Bg3 a5 15.dxe5 dxe5 16.Qd6 0-0-0 17.Nxe5 Nxe4 18.Bxg4 Nxd6 19.Bxh5 Nxe5 20.Rab1 Rge8 21.b3 Kc7 22.Ne2 Ng6 23.Rd3 Be5 24.f4 Bf6 25.Rbd1 Nf5 26.Bf2 Ng7 27.Bg4 h5 28.Rxd8 Rxd8 29.Rxd8 Bxd8 30.Bh3 b5 31.Be3 bxa4 32.bxa4 Ne8 33.Kf2 Nd6 34.g3 Bf6 35.Kf3 Ne7 36.Bg1 Nd5
...Rg8 and ...Qh5 might well transpose and anyhow White is still better at this point of the game, isn't it?
What I'd be interested in was mainly, how comes this strange opening line (3...h6?, 4.h3?...) ?
Engines start pondering at 7th. if I interpret time- and depth- commentaries stored in .pgn correctly, so I guess up to there it was a test- line given?
As Louis said already, most human-like moves are the blunders in this game one more time, as it is mostly the case, when engines play and humans do so too over the board.
I'd like to see Thorsten play at this TC against ancient Rybka, need not be version 4 at all, any earlier one would do.
Even if he was allowed to have White with this strange opening line and Rybka Black from move 7 onwards.
Or one of his beloved old dedicateds with porgrams full of knowledge and wisdom, that humans had told them back in glorious days of CC.
regards
Peter.