which engines (also commercial ones) find the move 6...Nxe4 quickly for use in blitz games? and analysis.
can you show the engine analysis?
is there a test suite for the opening and endgame ability of engines?
1.e4 c5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 e5 5.Bxc6 dxc6 6.Nxe5
r1bqkb1r/pp3ppp/2p2n2/2p1N3/4P3/2N5/PPPP1PPP/R1BQK2R b KQkq -
[d]r1bqkb1r/pp3ppp/2p2n2/2p1N3/4P3/2N5/PPPP1PPP/R1BQK2R b KQkq - 0 6
[d]r1bqkb1r/pp3ppp/2p2n2/2p1N3/4P3/2N5/PPPP1PPP/R1BQK2R b KQkq -
a difficult test opening position
Moderator: Ras
-
govert
- Posts: 270
- Joined: Thu Jan 15, 2009 12:52 pm
Re: a difficult test opening position
FEN: r1bqkb1r/pp3ppp/2p2n2/2p1N3/4P3/2N5/PPPP1PPP/R1BQK2R b KQkq - 0 6
IvanHoe 9.67b w32:
19 00:37 31.504.678 837.000 -0,49 6. ... Bd6 7.Nf3 0-0 8.0-0 Re8 9.d3 h6 10.h3 Nd7 11.Be3 b5 12.Qd2 Qf6 13.Rab1 Bc7 14.Ne2 Ne5 15.Nxe5 Qxe5 16.Nf4
19+ 00:49 41.799.067 857.000 -0,35 6. ... Nxe4 7.Qh5 Nd6 8.0-0 Be7 9.d3 0-0 10.Re1 Be6 11.Nf3 c4 12.Bg5 cxd3 13.Bxe7 Qxe7 14.cxd3 h6 15.Ne5 Rad8 16.Ne4 Nxe4 17.Rxe4 Qg5
19+ 00:53 45.568.768 862.000 -0,27 6. ... Nxe4 7.Qh5 Nd6 8.0-0 Be7 9.d3 0-0 10.Re1 Be6 11.Nf3 c4 12.Bg5 cxd3 13.Bxe7 Qxe7 14.cxd3 h6 15.Ne5 Rad8 16.Ne4 Nxe4 17.Rxe4 Qg5
19 00:54 47.220.579 864.000 -0,27 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Qxd1 12.Raxd1 Be6 13.Bxe7 Kxe7 14.Nxc5 Rhd8 15.f4 Rxd1 16.Rxd1 b6 17.Nxe6 Kxe6 18.Kf2 a5 19.Kf3 a4 20.g4 a3 21.b3 c5 22.Re1+ Kd6
Stockfish 1.6.3 JA:
14 00:03 2.138.120 701.943 -0,80 6. ... Bd6 7.Nf3 0-0 8.d3 b5 9.0-0 Re8 10.a3 Bg4 11.h3 Bxf3 12.Qxf3 Qc7 13.g3 Rad8
14+ 00:05 4.343.114 765.846 -0,56 6. ... Nxe4 7.Nxe4 Qd4 8.d3 Qxe5 9.f4 Qc7 10.0-0 Be7 11.Be3 0-0 12.Bxc5 Bxc5+ 13.Nxc5 Qb6
15 00:09 8.021.904 805.978 -0,64 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Be6 12.Bxe7 Qxd1 13.Raxd1 Kxe7 14.Nxc5 Rhd8 15.Rxd8 Rxd8 16.Nxb7
16 00:19 15.967.088 833.529 -0,36 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.d3 0-0 12.Qh5 Qf6 13.Bf4 Qxb2 14.Be5 Qxc2 15.Bxg7 Be6 16.Nf5 Qxd3 17.Bxf8 Bxf8 18.Qg5+
17 00:26 22.234.142 840.514 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.b3 0-0 12.Ba3 Rd8 13.d4 b6 14.dxc5 Qxd1 15.Raxd1 Rxd1 16.Rxd1 a5 17.Ne4 Bf5 18.f3
IvanHoe 9.67b w32:
19 00:37 31.504.678 837.000 -0,49 6. ... Bd6 7.Nf3 0-0 8.0-0 Re8 9.d3 h6 10.h3 Nd7 11.Be3 b5 12.Qd2 Qf6 13.Rab1 Bc7 14.Ne2 Ne5 15.Nxe5 Qxe5 16.Nf4
19+ 00:49 41.799.067 857.000 -0,35 6. ... Nxe4 7.Qh5 Nd6 8.0-0 Be7 9.d3 0-0 10.Re1 Be6 11.Nf3 c4 12.Bg5 cxd3 13.Bxe7 Qxe7 14.cxd3 h6 15.Ne5 Rad8 16.Ne4 Nxe4 17.Rxe4 Qg5
19+ 00:53 45.568.768 862.000 -0,27 6. ... Nxe4 7.Qh5 Nd6 8.0-0 Be7 9.d3 0-0 10.Re1 Be6 11.Nf3 c4 12.Bg5 cxd3 13.Bxe7 Qxe7 14.cxd3 h6 15.Ne5 Rad8 16.Ne4 Nxe4 17.Rxe4 Qg5
19 00:54 47.220.579 864.000 -0,27 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Qxd1 12.Raxd1 Be6 13.Bxe7 Kxe7 14.Nxc5 Rhd8 15.f4 Rxd1 16.Rxd1 b6 17.Nxe6 Kxe6 18.Kf2 a5 19.Kf3 a4 20.g4 a3 21.b3 c5 22.Re1+ Kd6
Stockfish 1.6.3 JA:
14 00:03 2.138.120 701.943 -0,80 6. ... Bd6 7.Nf3 0-0 8.d3 b5 9.0-0 Re8 10.a3 Bg4 11.h3 Bxf3 12.Qxf3 Qc7 13.g3 Rad8
14+ 00:05 4.343.114 765.846 -0,56 6. ... Nxe4 7.Nxe4 Qd4 8.d3 Qxe5 9.f4 Qc7 10.0-0 Be7 11.Be3 0-0 12.Bxc5 Bxc5+ 13.Nxc5 Qb6
15 00:09 8.021.904 805.978 -0,64 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Be6 12.Bxe7 Qxd1 13.Raxd1 Kxe7 14.Nxc5 Rhd8 15.Rxd8 Rxd8 16.Nxb7
16 00:19 15.967.088 833.529 -0,36 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.d3 0-0 12.Qh5 Qf6 13.Bf4 Qxb2 14.Be5 Qxc2 15.Bxg7 Be6 16.Nf5 Qxd3 17.Bxf8 Bxf8 18.Qg5+
17 00:26 22.234.142 840.514 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.b3 0-0 12.Ba3 Rd8 13.d4 b6 14.dxc5 Qxd1 15.Raxd1 Rxd1 16.Rxd1 a5 17.Ne4 Bf5 18.f3
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Togga
Re: a difficult test opening position
alaric 707 is here better
[+0.41] d=17 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Be6 12.Bxe7 Kxe7 13.Qh5 g6 14.Qh4+ f6 15.b3 (0:01.50)
[+0.13] d=16 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Nc3 Qf6 12.Bf4 Be6 13.Re4 Qg6 14.Qf3 (0:01.09)
[+0.28] d=15 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Ng3 Qf6 12.Nh5 Qd6 13.Bf4 Qd8 (0:00.27)
[+0.30] d=14 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Nc3 Qf6 12.Bf4 Be6 13.Qf3 (0:00.15)
[+0.21] d=13 6...Nxe4 7.Qh5 Nd6 8.O–O Be7 9.Ne4 g6 10.Qf3 f6 11.Nxd6+ Qxd6 12.Nc4 Qd5 13.Qf4 (0:00.08)
[+0.24] d=12 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Bd2 O–O 11.Bc3 Qf4 12.Qh5 (0:00.03)
[+0.30] d=11 6...Nxe4 7.Qh5 Nd6 8.Ne4 Qc7 9.Qe2 Nxe4 10.Qxe4 Be6 11.O–O (0:00.01)
[+0.34] d=10 6...Nxe4 7.Qh5 Nd6 8.O–O Be7 9.Re1 O–O 10.d3 Be6 11.Be3 (0:00.00)
[+0.33] d=9 6...Nxe4 7.Qh5 Nd6 8.O–O Be6 9.Re1 Be7 10.Ne4 Nxe4 11.Rxe4 (0:00.00)
[+0.41] d=17 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.Re1 Be7 10.d4 Qxd4 11.Bg5 Be6 12.Bxe7 Kxe7 13.Qh5 g6 14.Qh4+ f6 15.b3 (0:01.50)
[+0.13] d=16 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Nc3 Qf6 12.Bf4 Be6 13.Re4 Qg6 14.Qf3 (0:01.09)
[+0.28] d=15 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Ng3 Qf6 12.Nh5 Qd6 13.Bf4 Qd8 (0:00.27)
[+0.30] d=14 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Re1 O–O 11.Nc3 Qf6 12.Bf4 Be6 13.Qf3 (0:00.15)
[+0.21] d=13 6...Nxe4 7.Qh5 Nd6 8.O–O Be7 9.Ne4 g6 10.Qf3 f6 11.Nxd6+ Qxd6 12.Nc4 Qd5 13.Qf4 (0:00.08)
[+0.24] d=12 6...Nxe4 7.Nxe4 Qd5 8.O–O Qxe5 9.d3 Be7 10.Bd2 O–O 11.Bc3 Qf4 12.Qh5 (0:00.03)
[+0.30] d=11 6...Nxe4 7.Qh5 Nd6 8.Ne4 Qc7 9.Qe2 Nxe4 10.Qxe4 Be6 11.O–O (0:00.01)
[+0.34] d=10 6...Nxe4 7.Qh5 Nd6 8.O–O Be7 9.Re1 O–O 10.d3 Be6 11.Be3 (0:00.00)
[+0.33] d=9 6...Nxe4 7.Qh5 Nd6 8.O–O Be6 9.Re1 Be7 10.Ne4 Nxe4 11.Rxe4 (0:00.00)
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govert
- Posts: 270
- Joined: Thu Jan 15, 2009 12:52 pm
Re: a difficult test opening position
Doch32 1.0 JA:
19 02:09 115.227.480 889.143 -0,65 6. ... Bd6 7.Nf3 0-0 8.h3 Nd7 9.d3 Qf6 10.0-0 Ne5 11.Nd2 Ng6 12.Nc4 Bc7 13.Be3 b5 14.Nd2 Nf4 15.Qf3 Be6 16.a4 b4 17.Ne2 Nxe2+ 18.Qxe2 Bd6 19.Qh5 Qxb2 20.Bxc5
20 03:26 181.336.791 879.941 -0,67 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 a5 12.Ne2 Bb7 13.Bf4 Bxf4 14.Nxf4 Qc7 15.Qd2 Rad8 16.e5 Nd7 17.e6 fxe6 18.Qe3 Qd6 19.Ng6 e5 20.Qe4 Nf6
20 04:24 235.976.333 891.949 -0,67 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 a5 12.Ne2 Bb7 13.Bf4 Bxf4 14.Nxf4 Qc7 15.Qd2 Rad8 16.e5 Nd7 17.e6 fxe6 18.Qe3 Qd6 19.Ng6 e5 20.Qe4 Nf6
21 09:46 517.525.084 883.125 -0,76 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 Qc7 12.Ne2 Be6 13.Be3 Nd7 14.Qd2 f6 15.a5 Rad8 16.Bf4 Ne5 17.Bxe5 fxe5 18.b3 Qf7 19.axb6 axb6 20.Rfe1
21 14:51 788.162.023 884.736 -0,50 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.b3 Bd6 15.Bb2 Re7 16.Be5 Rd8 17.f3 Bxe5 18.Qxe5 g6 19.Re4 Qxe5 20.Rxe5 Rd5 21.Rae1 Rxe5 22.Rxe5
21 14:53 790.427.597 884.734 -0,50 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.b3 Bd6 15.Bb2 Re7 16.Be5 Rd8 17.f3 Bxe5 18.Qxe5 g6 19.Re4 Qxe5 20.Rxe5 Rd5 21.Rae1 Rxe5 22.Rxe5
22 17:19 918.302.479 883.660 -0,44 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 g6 18.Bd2 Qe6 19.a4 Qd5 20.Qxd5 cxd5 21.a5 Kc7 22.a6 b5 23.Bg5 c4
22 18:03 957.150.845 883.961 -0,44 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 g6 18.Bd2 Qe6 19.a4 Qd5 20.Qxd5 cxd5 21.a5 Kc7 22.a6 b5 23.Bg5 c4
23 21:08 1.116.587.518 880.394 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 Kc7 18.Bd2 h5 19.a4 Qxe4 20.Rxe4 Kb6 21.b3 g6 22.Rae1 Bc7 23.Bc3 Rf5 24.a5+ Kb5
23 22:42 1.198.052.737 879.173 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 Kc7 18.Bd2 h5 19.a4 Qxe4 20.Rxe4 Kb6 21.b3 g6 22.Rae1 Bc7 23.Bc3 Rf5 24.a5+ Kb5
24 43:41 2.229.507 387 850.523 -0,24 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.c4 Qf5 21.Qf3 Rd3 22.g4 Rxf3 23.gxf5
24 45:09 2.303.986 766 850.447 -0,24 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.c4 Qf5 21.Qf3 Rd3 22.g4 Rxf3 23.gxf5
25 59:56 3.026.655 115 841.668 -0,29 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.f5 Bf7 21.Rxe8+ Rxe8 22.Rxe8+ Bxe8 23.Qf4 Qd7 24.Qb8 b5 25.g4 Qe7 26.Qg3 b4
25 1:03:11 3.195.993 753 842.982 -0,29 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.f5 Bf7 21.Rxe8+ Rxe8 22.Rxe8+ Bxe8 23.Qf4 Qd7 24.Qb8 b5 25.g4 Qe7 26.Qg3 b4
19 02:09 115.227.480 889.143 -0,65 6. ... Bd6 7.Nf3 0-0 8.h3 Nd7 9.d3 Qf6 10.0-0 Ne5 11.Nd2 Ng6 12.Nc4 Bc7 13.Be3 b5 14.Nd2 Nf4 15.Qf3 Be6 16.a4 b4 17.Ne2 Nxe2+ 18.Qxe2 Bd6 19.Qh5 Qxb2 20.Bxc5
20 03:26 181.336.791 879.941 -0,67 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 a5 12.Ne2 Bb7 13.Bf4 Bxf4 14.Nxf4 Qc7 15.Qd2 Rad8 16.e5 Nd7 17.e6 fxe6 18.Qe3 Qd6 19.Ng6 e5 20.Qe4 Nf6
20 04:24 235.976.333 891.949 -0,67 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 a5 12.Ne2 Bb7 13.Bf4 Bxf4 14.Nxf4 Qc7 15.Qd2 Rad8 16.e5 Nd7 17.e6 fxe6 18.Qe3 Qd6 19.Ng6 e5 20.Qe4 Nf6
21 09:46 517.525.084 883.125 -0,76 6. ... Bd6 7.Nf3 0-0 8.h3 Re8 9.d3 h6 10.0-0 b6 11.a4 Qc7 12.Ne2 Be6 13.Be3 Nd7 14.Qd2 f6 15.a5 Rad8 16.Bf4 Ne5 17.Bxe5 fxe5 18.b3 Qf7 19.axb6 axb6 20.Rfe1
21 14:51 788.162.023 884.736 -0,50 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.b3 Bd6 15.Bb2 Re7 16.Be5 Rd8 17.f3 Bxe5 18.Qxe5 g6 19.Re4 Qxe5 20.Rxe5 Rd5 21.Rae1 Rxe5 22.Rxe5
21 14:53 790.427.597 884.734 -0,50 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.b3 Bd6 15.Bb2 Re7 16.Be5 Rd8 17.f3 Bxe5 18.Qxe5 g6 19.Re4 Qxe5 20.Rxe5 Rd5 21.Rae1 Rxe5 22.Rxe5
22 17:19 918.302.479 883.660 -0,44 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 g6 18.Bd2 Qe6 19.a4 Qd5 20.Qxd5 cxd5 21.a5 Kc7 22.a6 b5 23.Bg5 c4
22 18:03 957.150.845 883.961 -0,44 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 g6 18.Bd2 Qe6 19.a4 Qd5 20.Qxd5 cxd5 21.a5 Kc7 22.a6 b5 23.Bg5 c4
23 21:08 1.116.587.518 880.394 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 Kc7 18.Bd2 h5 19.a4 Qxe4 20.Rxe4 Kb6 21.b3 g6 22.Rae1 Bc7 23.Bc3 Rf5 24.a5+ Kb5
23 22:42 1.198.052.737 879.173 -0,48 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be6 10.d3 0-0-0 11.Ng5 Qf5 12.Nxe6 fxe6 13.Qe2 Re8 14.Bd2 Bd6 15.Bc3 e5 16.Qe4 Rhf8 17.f3 Kc7 18.Bd2 h5 19.a4 Qxe4 20.Rxe4 Kb6 21.b3 g6 22.Rae1 Bc7 23.Bc3 Rf5 24.a5+ Kb5
24 43:41 2.229.507 387 850.523 -0,24 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.c4 Qf5 21.Qf3 Rd3 22.g4 Rxf3 23.gxf5
24 45:09 2.303.986 766 850.447 -0,24 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.c4 Qf5 21.Qf3 Rd3 22.g4 Rxf3 23.gxf5
25 59:56 3.026.655 115 841.668 -0,29 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.f5 Bf7 21.Rxe8+ Rxe8 22.Rxe8+ Bxe8 23.Qf4 Qd7 24.Qb8 b5 25.g4 Qe7 26.Qg3 b4
25 1:03:11 3.195.993 753 842.982 -0,29 6. ... Nxe4 7.Nxe4 Qd4 8.0-0 Qxe5 9.Re1 Be7 10.Ng3 Qd6 11.Qe2 Qe6 12.Qf1 Qd5 13.b3 Be6 14.Bb2 0-0 15.f4 Bh4 16.Qf2 Bxg3 17.hxg3 Rad8 18.Re2 Rfe8 19.Rae1 f6 20.f5 Bf7 21.Rxe8+ Rxe8 22.Rxe8+ Bxe8 23.Qf4 Qd7 24.Qb8 b5 25.g4 Qe7 26.Qg3 b4
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Togga
Re: a difficult test opening position
the funny thing is Anand and Kramnik played this opening too. it was a draw.
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: a difficult test opening position
Togga wrote:which engines (also commercial ones) find the move 6...Nxe4 quickly for use in blitz games? and analysis.
can you show the engine analysis?
Code: Select all
Crafty v23.1 (8 cpus)
White(1): book off
book file disabled.
White(1): setboard r1bqkb1r/pp3ppp/2p2n2/2p1N3/4P3/2N5/PPPP1PPP/R1BQK2R b KQkq - 0 6
Black(1): st 180
search time set to 180.00.
Black(1): go
time limit 3:00 (+0.00) (3:00)
depth time score variation (1)
starting thread 1
starting thread 2
starting thread 3
starting thread 4
starting thread 5
starting thread 6
starting thread 7
9 0.04 0.38 1. ... Bd6 2. Nc4 O-O 3. O-O Bf4 4.
Qf3 Qc7 5. g3 Be6 6. Qxf4 Qxf4 7. gxf4
Bxc4
9-> 0.04 0.38 1. ... Bd6 2. Nc4 O-O 3. O-O Bf4 4.
Qf3 Qc7 5. g3 Be6 6. Qxf4 Qxf4 7. gxf4
Bxc4
10 0.05 0.44 1. ... Bd6 2. Nc4 O-O 3. O-O Bf4 4.
Ne2 Bc7 5. e5 Ng4 6. f4
10-> 0.06 0.44 1. ... Bd6 2. Nc4 O-O 3. O-O Bf4 4.
Ne2 Bc7 5. e5 Ng4 6. f4
11 0.10 0.28 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. Ne2 Qe5
11-> 0.12 0.28 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. Ne2 Qe5
12 0.16 0.41 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. Ne2 Qe5 7. f4
12-> 0.20 0.41 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. Ne2 Qe5 7. f4 (s=2)
13 0.27 0.49 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. a4 Bd7 7. Nf5 Bxf5
8. exf5
13-> 0.32 0.49 1. ... Bd6 2. Nc4 O-O 3. O-O Bc7 4.
d3 b5 5. Ne3 Qd4 6. a4 Bd7 7. Nf5 Bxf5
8. exf5
14 0.68 0.49 1. ... Bd6 2. Nc4 Bc7 3. d3 O-O 4.
O-O b5 5. Ne3 Qd4 6. a4 Bd7 7. Nf5
Bxf5 8. exf5 <HT>
14-> 0.78 0.49 1. ... Bd6 2. Nc4 Bc7 3. d3 O-O 4.
O-O b5 5. Ne3 Qd4 6. a4 Bd7 7. Nf5
Bxf5 8. exf5 <HT>
15 1.09 0.39 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O Qd4 6. a4 Bd7 7. axb5 cxb5
8. Nf5 Bxf5 <HT>
15-> 1.24 0.39 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O Qd4 6. a4 Bd7 7. axb5 cxb5
8. Nf5 Bxf5 <HT>
16 1.77 0.44 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O Qd4 6. Ne2 Qe5 7. f4 Qh5
8. Bd2 Ng4 9. Nxg4 Bxg4
16-> 3.40 0.44 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O Qd4 6. Ne2 Qe5 7. f4 Qh5
8. Bd2 Ng4 9. Nxg4 Bxg4 (s=3)
17 4.83 0.50 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O c4 6. f4 b4 7. Na4 Qd4 8.
dxc4 Qxd1 9. Rxd1 Bxf4 (s=2)
17-> 9.05 0.50 1. ... Bd6 2. Nc4 Bc7 3. d3 b5 4. Ne3
O-O 5. O-O c4 6. f4 b4 7. Na4 Qd4 8.
dxc4 Qxd1 9. Rxd1 Bxf4 (s=3)
18 16.03 0.61 1. ... Bd6 2. Nf3 O-O 3. O-O Re8 4.
d3 Qb6 5. Rb1 Bg4 6. h3 Bh5 7. g4 Bg6
8. Nh4 Be5 9. Bd2 Bxc3 10. Bxc3 (s=2)
18 27.41 0.59 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Rd6 9. Qe5 Qxe5 10.
Rxe5
18-> 27.41 0.59 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Rd6 9. Qe5 Qxe5 10.
Rxe5 (s=2)
19 29.59 0.67 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be7 5. d4 Qxd4 6. Bg5 Qxd1 7.
Raxd1 Be6 8. Bxe7 Kxe7 9. Nxc5 Rad8
10. Rxd8 Rxd8 11. Nxb7
19 34.05 0.59 1. ... Bd6 2. Nf3 O-O 3. O-O Re8 4.
d3 Qb6 5. Rb1 h6 6. h3 Qc7 7. Be3 Be6
8. Qe2 Rad8 9. Kh1 Re7 10. Ra1 Qb6
<HT>
19-> 39.17 0.59 1. ... Bd6 2. Nf3 O-O 3. O-O Re8 4.
d3 Qb6 5. Rb1 h6 6. h3 Qc7 7. Be3 Be6
8. Qe2 Rad8 9. Kh1 Re7 10. Ra1 Qb6
<HT> (s=2)
20 48.63 0.60 1. ... Bd6 2. Nf3 O-O 3. O-O Re8 4.
d3 Qb6 5. Rb1 h6 6. Re1 Qc7 7. Qe2
Bg4 8. h3 Bh5 9. Bd2 Nd5 10. Nxd5 cxd5
11. e5
20 1:00 0.38 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Qe5 Qxe5 10.
Rxe5 Bd6 11. Re4
20-> 1:04 0.38 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Qe5 Qxe5 10.
Rxe5 Bd6 11. Re4 (s=2)
21 1:20 0.37 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Qe4 Bd6 10.
Bd2 Rhf8 11. Qxf5 exf5
21-> 1:31 0.37 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Qe4 Bd6 10.
Bd2 Rhf8 11. Qxf5 exf5
22 1:57 0.40 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Bd2 Bd6 10.
Bc3 Rhf8 11. Bxg7 Rf7 12. Bc3
22-> 2:30 0.40 1. ... Nxe4 2. Nxe4 Qd4 3. O-O Qxe5
4. Re1 Be6 5. d3 O-O-O 6. Ng5 Qf5 7.
Nxe6 fxe6 8. Qe2 Re8 9. Bd2 Bd6 10.
Bc3 Rhf8 11. Bxg7 Rf7 12. Bc3 (s=2)
time=3:00 mat=1 n=3701916233 fh=93% nps=20.5M
extensions=110.5M qchecks=93.7M reduced=447.1M pruned=1561.0M
predicted=0 evals=1516.1M 50move=0 EGTBprobes=0 hits=0
SMP-> splits=311924 aborts=33727 data=48/1024 elap=3:00
terminating SMP processes.
Black(1): Nxe4
time used: 3:00
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Togga
Re: a difficult test opening position
can someone explain why it is so difficult for some engines to find the move 6...Nxe4? what is the programing technic behind this?
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rvida
- Posts: 481
- Joined: Thu Apr 16, 2009 12:00 pm
- Location: Slovakia, EU
Re: a difficult test opening position
Code: Select all
Critter 0.52b 32-bit
2/ 2 00:00 115 0 -1.33 Be6 d3
2/ 2 00:00 240 0 -1.10 Bd6 f4
2/ 2 00:00 387 25800 -0.99 Qd4 Nf3
3/ 5 00:00 731 48733 -1.08 Qd4 Nf3 Qd6
3/ 5 00:00 963 64200 -0.95 Bd6 d4 c5xd4
4/ 4 00:00 1840 122666 -0.95 Bd6 d4 c5xd4 Qxd4
5/ 6 00:00 4525 301666 -0.98 Bd6 Nc4 Bf4 O-O O-O
6/ 7 00:00 7656 246967 -1.01 Bd6 Nc4 O-O d3 Bg4 f3
7/ 9 00:00 14131 455838 -0.96 Bd6 Nc4 O-O d3 Be6 Nxd6 Qxd6 O-O
8/11 00:00 26957 434790 -0.87 Bd6 Nc4 O-O d3 Be6 O-O Bxc4 dxc4 Qd7
9/13 00:00 53240 572473 -0.91 Bd6 Nc4 Bc7 d3 b5 Ne3 O-O a4 b4
10/12 00:00 124075 663502 -0.74 Bd6 Nc4 Bc7 d3 b5 Ne3 O-O a4 b4 Ne2
11/15 00:00 316097 697785 -0.93 Bd6 Nf3 Bg4 d3 Bh5 Bg5 O-O O-O Be5 Bxf6 Qxf6 Rb1
11/15 00:00 401279 734943 -0.78 Nxe4 Qh5 Nd6 O-O Be7 d3 g6 Qe2 O-O Be3 Nf5
12/17 00:00 601776 741103 -0.71 Nxe4 Qh5 Nd6 O-O Be7 d3 g6 Qe2 Nf5 Nf3 O-O Qe5
13/18 00:01 1011184 752929 -0.81 Nxe4 Qh5 Nd6 O-O Be7 Ne4 g6 Qf3 f6 Nxd6+ Qxd6 Nc4 Qd4 Qe2
14/20 00:03 2428030 758048 -0.51 Nxe4 Qh5 Nd6 O-O Be7 d3 O-O Re1 Bf6 Nf3 c4 Bg5 Qa5 d4
15/22 00:06 5087460 767918 -0.59 Nxe4 Nxe4 Qd4 O-O Qxe5 Re1 Be7 d3 O-O Ng3 Qd6 Qh5 Be6 Ne4 Qd4 Kh1
16/24 00:10 8442423 768610 -0.68 Nxe4 Nxe4 Qd4 O-O Qxe5 Re1 Be7 d3 O-O Ng3 Qd6 Qh5 Be6 Nf5 Bxf5 Qxf5 Bf6 Bf4
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Togga
rybka
analysis by rybka 2.3.2a
[+0.34] d=20 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 Bg4 10.h3 Bh5 11.Bg5 h6 12.Bh4 Re6 13.Bg3 (0:16.05)
[+0.35] d=19 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Bg4 11.h3 Bh5 12.Be3 Qb6 13.Rb1 (0:07.30)
[+0.31] d=18 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 13.Be3 (0:03.29)
[+0.30] d=17 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 13.Be3 (0:01.49)
[+0.27] d=16 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 (0:01.07)
[+0.27] d=15 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 (0:00.48)
[+0.26] d=14 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Qb6 (0:00.39)
[+0.31] d=13 6...Bd6 7.Nc4 Bc7 8.e5 Ng4 9.Qe2 Be6 10.d3 O–O 11.h3 (0:00.15)
[+0.39] d=13 6...Qc7 7.Nf3 Be7 8.O–O O–O 9.h3 h6 10.Qe2 Re8 11.d4 (0:00.11)
[+0.25] d=12 6...Qc7 7.Nf3 Bd6 8.d3 O–O 9.Bg5 Nh5 10.O–O f6 (0:00.03)
[+0.23] d=11 6...Qc7 7.Nf3 Bd6 8.d3 O–O 9.Bg5 Nh5 10.O–O (0:00.03)
[+0.26] d=11 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.Qe2 Re8 10.f3 b5 (0:00.02)
[+0.26] d=10 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.Qe2 Re8 10.O–O (0:00.01)
[+0.13] d=9 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.O–O Ng4 (0:00.00)
[+0.07] d=8 6...Bd6 7.Nf3 O–O 8.O–O Re8 (0:00.00)
[+0.18] d=7 6...Bd6 7.Nc4 O–O 8.O–O (0:00.00)
[+0.26] d=6 6...Bd6 7.Nc4 O–O (0:00.00)
[+0.27] d=5 6...Bd6 7.Nc4 (0:00.00)
[+0.34] d=20 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 Bg4 10.h3 Bh5 11.Bg5 h6 12.Bh4 Re6 13.Bg3 (0:16.05)
[+0.35] d=19 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Bg4 11.h3 Bh5 12.Be3 Qb6 13.Rb1 (0:07.30)
[+0.31] d=18 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 13.Be3 (0:03.29)
[+0.30] d=17 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 13.Be3 (0:01.49)
[+0.27] d=16 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 Nh2 (0:01.07)
[+0.27] d=15 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Ng4 12.h3 (0:00.48)
[+0.26] d=14 6...Bd6 7.Nf3 O–O 8.O–O Re8 9.d3 h6 10.Re1 Qc7 11.Qe2 Qb6 (0:00.39)
[+0.31] d=13 6...Bd6 7.Nc4 Bc7 8.e5 Ng4 9.Qe2 Be6 10.d3 O–O 11.h3 (0:00.15)
[+0.39] d=13 6...Qc7 7.Nf3 Be7 8.O–O O–O 9.h3 h6 10.Qe2 Re8 11.d4 (0:00.11)
[+0.25] d=12 6...Qc7 7.Nf3 Bd6 8.d3 O–O 9.Bg5 Nh5 10.O–O f6 (0:00.03)
[+0.23] d=11 6...Qc7 7.Nf3 Bd6 8.d3 O–O 9.Bg5 Nh5 10.O–O (0:00.03)
[+0.26] d=11 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.Qe2 Re8 10.f3 b5 (0:00.02)
[+0.26] d=10 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.Qe2 Re8 10.O–O (0:00.01)
[+0.13] d=9 6...Bd6 7.Nc4 O–O 8.Nxd6 Qxd6 9.O–O Ng4 (0:00.00)
[+0.07] d=8 6...Bd6 7.Nf3 O–O 8.O–O Re8 (0:00.00)
[+0.18] d=7 6...Bd6 7.Nc4 O–O 8.O–O (0:00.00)
[+0.26] d=6 6...Bd6 7.Nc4 O–O (0:00.00)
[+0.27] d=5 6...Bd6 7.Nc4 (0:00.00)