TalkChess.com

[Uri Blass]

Movei has no problem to see it
It seems that the problem is with your static evaluation and the main line
1...hxg5 2.hxg5 Ne4 3.Qh5 f6 4.Qh8+ Kf7 5.g6+ Ke6 6.Qxg7 simply should be evaluated as better for white relative to the alternative

I am not impressed by vincent's claims that diep solves it at depth 2 by static evaluation.

We do not know if it solves it because of good evaluation or because of bad evaluation that can cause diep also to play often wrong sacrifices.


New game
r1bqr1k1/pp2bpp1/5n1p/3p2N1/3B3P/2PB1Q2/PP3PP1/R4K1R b - - 0 1

Analysis by Movei00_8_403:

1...hxg5
-+ (-1.92) Depth: 1 00:00:00
1...hxg5 2.hxg5
-+ (-1.92) Depth: 2 00:00:00
1...hxg5 2.hxg5
-+ (-1.92) Depth: 2 00:00:00
1...hxg5 2.hxg5
-+ (-2.22) Depth: 3 00:00:00
1...hxg5 2.hxg5 Bg4
-+ (-2.25) Depth: 3 00:00:00
1...hxg5 2.hxg5 Bg4
-+ (-2.25) Depth: 3 00:00:00
1...hxg5 2.hxg5 Bg4 3.Qf4
-+ (-2.35) Depth: 4 00:00:00
1...hxg5 2.hxg5 Bg4 3.Qf4
-+ (-2.35) Depth: 4 00:00:00
1...hxg5 2.hxg5
-+ (-2.05) Depth: 5 00:00:00
1...hxg5 2.hxg5
µ (-1.35) Depth: 5 00:00:00
1...hxg5 2.hxg5 Ne4 3.Bxe4 dxe4
µ (-0.96) Depth: 5 00:00:00
1...hxg5 2.hxg5 Ne4 3.Bxe4 dxe4
µ (-0.96) Depth: 5 00:00:00
1...hxg5 2.hxg5
µ (-1.26) Depth: 6 00:00:00 14kN
1...hxg5
³ (-0.66) Depth: 6 00:00:00 16kN
1...hxg5
³ (-0.66) Depth: 6 00:00:00 32kN
1...hxg5 2.hxg5
³ (-0.36) Depth: 7 00:00:00 38kN
1...hxg5 2.hxg5 Ne4 3.Qh5 f6 4.Qh8+ Kf7 5.g6+ Ke6 6.Qxg7
= (0.02) Depth: 7 00:00:00 44kN
1...b6 2.Nh3
= (0.01) Depth: 7 00:00:00 76kN
1...b6 2.Bh7+ Kf8 3.Bd3 Kg8
= (0.00) Depth: 7 00:00:00 104kN
1...Bg4 2.Qg3
= (-0.01) Depth: 7 00:00:00 134kN
1...Bg4 2.Qg3
³ (-0.30) Depth: 7 00:00:00 142kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Bd6 4.Ne5 Qa4
³ (-0.34) Depth: 7 00:00:00 156kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Bd6 4.Ne5 Qa4
³ (-0.34) Depth: 7 00:00:00 171kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bf5 5.Be2
³ (-0.44) Depth: 8 00:00:00 204kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bf5 5.Be2
³ (-0.44) Depth: 8 00:00:01 249kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bxf3 5.gxf3 Rac8
³ (-0.56) Depth: 9 00:00:01 319kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bxf3 5.gxf3 Rac8
³ (-0.56) Depth: 9 00:00:01 405kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bxf3 5.gxf3 Bf6 6.Bc5
³ (-0.58) Depth: 10 00:00:02 536kN
1...Bg4 2.Qg3 Qd7 3.Nf3 Nh5 4.Qh2 Bxf3 5.gxf3 Bf6 6.Bc5
³ (-0.58) Depth: 10 00:00:03 849kN

(Uri, MyTown 30.05.2007)