is there a test suite for avoiding opening traps

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Uri Blass
Posts: 8112
Joined: Wed Mar 08, 2006 11:37 pm
Location: Tel-Aviv Israel

is there a test suite for avoiding opening traps

Post by Uri Blass » Fri Apr 06, 2007 6:02 am

I think it may be interesting to have a test suite of avoiding opening traps.

Here is an example for an opening trap that many program fall into it.

It is based on the following miniature in one of my correspondence games when using database is allowed but using engines is not allowed.

My opponent blundered by playing 10.Qe4 and resigned some moves later after finding that he is losing his queen.

programs need a long time to avoid that move.

[Event "Let's play chess"]
[Site "http://gameknot.com/chess.pl?b"]
[Date "2007.04.02"]
[Round "?"]
[White "wwgia"]
[Black "edcba"]
[Result "0-1"]
[WhiteElo "1703"]
[BlackElo "1926"]
[PlyCount "28"]
[EventDate "2007.??.??"]
[TimeControl "1/259200:0"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 Bb7 6. Nc3 c5 7. d5 exd5 8. cxd5
Nxd5 9. Bg5 Be7 10. Qe4 Nxc3 11. Qxb7 Nc6 12. Bxe7 Kxe7 13. bxc3 Rb8 14. Qa6 b5
0-1


wwgia - edcba, Let's play chess 2007
[D]rn1qk2r/pb1pbppp/1p6/2pn2B1/8/P1N2N2/1PQ1PPPP/R3KB1R w KQkq - 0 1

Analysis by Glaurung 1.2.1:

10.Qc2-f5 Nd5xc3 11.b2xc3
³ (-0.50) Depth: 2 00:00:00
10.Qc2-f5 Nd5xc3 11.b2xc3
³ (-0.50) Depth: 3 00:00:00
10.Qc2-f5 Nd5xc3 11.b2xc3 0-0
µ (-1.01) Depth: 4 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Be7xg5 12.Nf3xg5
µ (-0.81) Depth: 4 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Be7xg5 12.Nf3xg5
µ (-0.81) Depth: 5 00:00:00
10.Nc3xd5 Bb7xd5 11.Ra1-d1 Be7xg5 12.Rd1xd5 Bg5-e7
³ (-0.50) Depth: 6 00:00:00 14kN
10.Qc2-e4 h7-h6 11.Nc3xd5 h6xg5 12.Nf3xg5 Bb7xd5 13.Qe4xd5
= (0.15) Depth: 6 00:00:00 22kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Be7xg5 12.Nf3xg5 Qd8-f6 13.Qf5-e4+ Qf6-e7
² (0.35) Depth: 7 00:00:01 44kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6
= (-0.01) Depth: 8 00:00:01 63kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6
= (-0.17) Depth: 9 00:00:01 100kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6
= (-0.17) Depth: 10 00:00:01 180kN
10.Qc2-e4 Nd5xc3 11.Qe4xb7 Nb8-c6 12.Bg5xe7 Ke8xe7 13.Qb7-a6 Nc3-e4 14.Ra1-d1 Ke7-f8 15.e2-e3
³ (-0.62) Depth: 11 00:00:02 378kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Bf1-d3 g7-g5 14.Bf4xb8 Qd8xb8 15.0-0
³ (-0.46) Depth: 11 00:00:03 983kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e3 Be7-f6 13.Bf1-d3 g7-g6 14.e3-e4 Bd5-e6 15.0-0 d7-d5 16.e4xd5 Be6xd5
³ (-0.34) Depth: 12 00:00:05 1634kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Bf1-d3 g7-g5 14.Bf4-e3 g5-g4 15.Nf3-e5 Nb8-c6 16.Qc2-c3
³ (-0.28) Depth: 13 00:00:09 3107kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 Nb8-c6 12.e2-e4 Bd5-e6 13.Bf1-a6 g7-g5 14.Bf4-g3 g5-g4 15.Nf3-e5 Be7-f6 16.Ne5xc6 d7xc6
³ (-0.40) Depth: 14 00:00:16 5641kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Bf1-d3 Nb8-c6 14.0-0 d7-d6 15.Rf1-d1 Rf8-e8 16.e4-e5 g7-g6 17.Bd3-c4
³ (-0.34) Depth: 15 00:00:35 12492kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Kg8-h8 15.h2-h4 Qg5-f6 16.Qe5xf6 Rf8xf6 17.Nc7xa8 Bb7xa8
= (-0.15) Depth: 15 00:00:43 15651kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Kg8-h8 15.h2-h4 Qg5-f6 16.Qe5xf6 Rf8xf6 17.Nc7xa8 Bb7xa8
= (-0.15) Depth: 16 00:01:00 21787kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Kg8-h8 15.h2-h4 Qg5-g4 16.Nc7xa8 Bb7xa8 17.Ra1-d1 Nb8-c6 18.Qe5-c7
= (-0.21) Depth: 17 00:01:42 37523kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Kg8-h8 15.h2-h4 Qg5-d8 16.Nc7xa8 Nb8-c6 17.Qe5-d6 Rf8-f6 18.Qd6-c7 Bb7xa8
= (-0.10) Depth: 18 00:03:30 78086kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Kg8-h8 16.Nc7xa8 Bb7xa8 17.e2-e3 Nc6-d4 18.Qd5-d6 Rf8-e8 19.0-0-0 Ba8-c6 20.Bf1-c4
= (-0.03) Depth: 19 00:06:59 151456kN
10.Qc2-e4 Nd5xc3 11.Qe4xb7 Nb8-c6 12.Bg5xe7 Ke8xe7 13.Nf3-e5 Nc6xe5 14.b2xc3 f7-f6 15.0-0-0 Qd8-c8 16.Qb7xc8 Rh8xc8 17.e2-e4 Ne5-g4 18.Rd1-d2 c5-c4 19.h2-h3 Ng4-e5
µ (-0.90) Depth: 20 00:15:47 345549kN

(, 06.04.2007)

wwgia - edcba, Let's play chess 2007
rn1qk2r/pb1pbppp/1p6/2pn2B1/8/P1N2N2/1PQ1PPPP/R3KB1R w KQkq - 0 1

Analysis by Toga II 1.3 Beta1:

10.Bg5xe7 Qd8xe7
³ (-0.27) Depth: 1/4 00:00:00
10.Qc2-e4
= (0.09) Depth: 1/13 00:00:00
10.Qc2-e4 0-0 11.Nc3xd5 Be7xg5 12.Nf3xg5 Qd8xg5
³ (-0.58) Depth: 2/13 00:00:00
10.Qc2-e4 0-0 11.Nc3xd5 Be7xg5 12.Nf3xg5 Qd8xg5
³ (-0.58) Depth: 3/13 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Be7xg5 12.Nf3xg5
³ (-0.39) Depth: 3/13 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Bd5-e6 12.Qf5-e4
= (-0.04) Depth: 4/15 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Bd5-e6 12.Qf5-e4 Nb8-c6
= (-0.21) Depth: 5/17 00:00:00
10.Nc3xd5 Bb7xd5 11.Bg5-f4 Bd5xf3 12.Qc2-c3 0-0 13.Qc3xf3 Nb8-c6
³ (-0.65) Depth: 6/18 00:00:00 60kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.Bg5xe7 Qd8xe7 13.b2xc3 Bb7xf3 14.Qf5xf3
= (0.19) Depth: 6/18 00:00:00 66kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6
² (0.38) Depth: 7/18 00:00:00 95kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.Bg5xe7 Qd8xe7 13.b2xc3 Rh8-f8 14.Qf5xh7 Bb7xf3 15.g2xf3
= (0.07) Depth: 8/20 00:00:00 148kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Qf6-e7 15.Ne4-g5 Rh8-f8 16.Qf5-g4
= (-0.12) Depth: 9/24 00:00:01 303kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Rh8-f8 14.Qf5-e5+ Qd8-e7 15.Qe5-g3 h7-h6 16.Ng5-h7 Rf8-f7 17.Qg3-c7 Bb7-a6
= (-0.17) Depth: 10/28 00:00:01 689kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6 15.Ng5-f3 Rh8-g8 16.g2-g3 Nb8-c6 17.Bf1-g2 Ke8-f7 18.0-0-0
= (-0.23) Depth: 11/32 00:00:03 1624kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6 15.Ng5-f3 Rh8-g8 16.g2-g3 Ke8-e7 17.Bf1-g2 Bb7-e4 18.0-0-0 Nb8-c6
= (-0.20) Depth: 12/37 00:00:06 3240kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-g6+ Rf8-f7 16.Qg6-g8+ Rf7-f8 17.Qg8-g6+
= (0.00) Depth: 13/40 00:00:13 9440kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-g6+ Rf8-f7 16.Qg6-g8+ Rf7-f8 17.Qg8-g6+
= (0.00) Depth: 14/40 00:00:18 14386kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-g6+ Rf8-f7 16.Qg6-g8+ Rf7-f8 17.Qg8-g6+
= (0.00) Depth: 15/43 00:00:31 24994kN
10.Qc2-e4 Nd5xc3 11.Qe4xb7 Nb8-c6 12.Bg5xe7 Ke8xe7 13.b2xc3 Ra8-b8 14.Qb7-a6 b6-b5 15.Nf3-e5 Nc6xe5 16.Qa6xa7 Qd8-b6 17.Qa7xb6 Rb8xb6 18.e2-e4 Rh8-a8 19.Bf1-e2 c5-c4 20.Ke1-d2 Rb6-d6+ 21.Kd2-c2
µ (-0.79) Depth: 16/53 00:01:24 68613kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Bf1-c4 Be7-f6 14.Bc4-b5 Nb8-c6 15.Bb5xc6 d7xc6 16.0-0 Qd8-e8 17.e4-e5 Bf6-e7 18.Nf3-g5 Be7xg5 19.Bf4xg5 h7-h6 20.Bg5-d2
³ (-0.39) Depth: 16/53 00:09:30 435165kN

(, 06.04.2007)

wwgia - edcba, Let's play chess 2007
rn1qk2r/pb1pbppp/1p6/2pn2B1/8/P1N2N2/1PQ1PPPP/R3KB1R w KQkq - 0 1

Analysis by Toga II 1.3x4:

10.Bg5xe7 Qd8xe7
³ (-0.58) Depth: 1/4 00:00:00
10.Nc3xd5 Bb7xd5
³ (-0.45) Depth: 1/10 00:00:00
10.Qc2-e4
= (-0.07) Depth: 1/14 00:00:00
10.Qc2-e4 0-0 11.Bg5xe7 Qd8xe7 12.Qe4xe7 Nd5xe7
µ (-0.86) Depth: 2/14 00:00:00
10.Qc2-f5 Nd5xc3 11.b2xc3 Be7xg5 12.Nf3xg5
³ (-0.37) Depth: 2/14 00:00:00
10.Qc2-f5 Nd5xc3 11.b2xc3 0-0
µ (-0.79) Depth: 3/14 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Be7xg5 12.Nf3xg5
³ (-0.52) Depth: 3/14 00:00:00
10.Nc3xd5 Bb7xd5 11.Qc2-f5 Bd5-e6 12.Qf5-f4 Be7xg5 13.Nf3xg5
³ (-0.50) Depth: 4/14 00:00:00
10.Nc3xd5 Bb7xd5 11.Ra1-d1 Bd5xf3 12.g2xf3 0-0 13.Qc2-e4
³ (-0.50) Depth: 5/14 00:00:00
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Bf1-c4 Be6xc4 14.Qc2xc4
³ (-0.37) Depth: 6/16 00:00:00 35kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7-f6 13.c3-c4
² (0.50) Depth: 6/16 00:00:00 56kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6
= (0.13) Depth: 7/19 00:00:00 66kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6 15.Ng5-f3
= (-0.12) Depth: 8/22 00:00:00 103kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Qf6xf5 15.Ne4-d6+ Ke8-d8 16.Nd6xf5
= (-0.19) Depth: 9/22 00:00:01 203kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Qf6xf5 15.Ne4-d6+ Ke8-d8 16.Nd6xf5
= (-0.19) Depth: 10/22 00:00:01 392kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6 15.Ng5-f3 Rh8-g8 16.0-0-0 Nb8-c6
= (-0.24) Depth: 11/34 00:00:01 829kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-h5+ Rf8-f7 16.Qh5-h8+ Ke8-e7 17.Qh8-e5+ Ke7-f8 18.Qe5-h8+ Kf8-e7
= (0.00) Depth: 12/34 00:00:03 2135kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-h5+ Rf8-f7 16.Qh5-h8+ Ke8-e7 17.Qh8-e5+ Ke7-f8 18.Qe5-h8+ Kf8-e7
= (0.00) Depth: 13/35 00:00:05 3643kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Kg8-h8 16.Nc7xa8 Bb7xa8 17.Qd5-d2 Qg5-f6 18.e2-e3
= (-0.11) Depth: 14/36 00:00:10 7059kN
10.Qc2-e4 f7-f5 11.Qe4-e5 Nd5xc3 12.Qe5xg7 Rh8-f8 13.Qg7xh7 Bb7xf3 14.e2xf3 Be7xg5 15.Qh7-h5+ Rf8-f7 16.Qh5-h8+ Ke8-e7 17.Qh8-e5+ Ke7-f8 18.Qe5-h8+ Kf8-e7
= (0.00) Depth: 15/48 00:00:22 15898kN
10.Qc2-e4 Nd5xc3 11.Qe4xb7 Nb8-c6 12.Bg5xe7 Ke8xe7 13.Qb7-a6 Nc3-e4 14.Qa6-a4 f7-f5 15.e2-e3 Rh8-e8 16.Bf1-b5 Qd8-c7 17.0-0 Ke7-f8 18.Bb5xc6 d7xc6
³ (-0.69) Depth: 16/52 00:00:45 33459kN
10.Nc3xd5 Bb7xd5 11.Bg5-f4 0-0 12.e2-e4 Bd5-e6 13.Ra1-d1 b6-b5 14.Bf1-e2 Nb8-c6 15.0-0 c5-c4 16.Nf3-e5 Nc6xe5 17.Bf4xe5 Be7-c5 18.g2-g3 Qd8-g5
³ (-0.36) Depth: 16/52 00:01:45 74884kN

(, 06.04.2007)

wwgia - edcba, Let's play chess 2007
rn1qk2r/pb1pbppp/1p6/2pn2B1/8/P1N2N2/1PQ1PPPP/R3KB1R w KQkq - 0 1

Analysis by Rybka 2.3.1 32-bit :

10.Nc3xd5
² (0.28) Depth: 2 00:00:00
10.Nc3xd5
= (-0.04) Depth: 3 00:00:00
10.Qc2-e4
² (0.69) Depth: 3 00:00:00
10.Qc2-e4
² (0.69) Depth: 4 00:00:00
10.Qc2-e4 Nd5xc3
² (0.54) Depth: 5 00:00:00
10.Qc2-e4 f7-f5 11.Qe4xf5
= (0.12) Depth: 6 00:00:00 7kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.Bg5xe7
= (0.01) Depth: 7 00:00:00 10kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6
= (0.07) Depth: 8 00:00:00 18kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4
= (0.02) Depth: 9 00:00:00 30kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Bb7xe4 15.Qf5xe4+ Ke8-f8
= (0.00) Depth: 10 00:00:02 53kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Bb7xe4 15.Qf5xe4+ Ke8-f8 16.Ra1-d1
= (0.00) Depth: 11 00:00:04 99kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Ng5-e4 Bb7xe4 15.Qf5xe4+ Ke8-f8 16.Ra1-d1 Qf6xc3+
= (0.00) Depth: 12 00:00:05 184kN
10.Qc2-e4 f7-f5 11.Qe4xf5 Nd5xc3 12.b2xc3 Be7xg5 13.Nf3xg5 Qd8-f6 14.Qf5xf6 g7xf6 15.Ng5-f3 Rh8-g8 16.0-0-0 Bb7-e4
= (-0.11) Depth: 13 00:00:07 383kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Rf8-f7 16.Nc7xa8 Qg5-f6
= (0.00) Depth: 14 00:00:13 874kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Rf8-f7 16.Nc7xa8 Qg5-f6
= (0.00) Depth: 15 00:00:19 1313kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Kg8-h8 16.Nc7xa8 Bb7xa8
= (-0.04) Depth: 16 00:00:31 2192kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Kg8-h8
= (-0.06) Depth: 17 00:00:57 4234kN
10.Qc2-e4 f7-f5 11.Qe4-e5 0-0 12.Nc3xd5 Be7xg5 13.Nf3xg5 Qd8xg5 14.Nd5-c7 Nb8-c6 15.Qe5-d5+ Kg8-h8 16.Nc7xa8 Bb7xa8
= (-0.06) Depth: 18 00:01:46 7991kN
10.Qc2-e4 Nd5xc3 11.Qe4xb7 Nb8-c6 12.Bg5xe7 Ke8xe7 13.Nf3-e5 Nc6xe5 14.b2xc3 Ne5-c6 15.Qb7-a6 Qd8-b8 16.Ra1-d1 Qb8-e5
µ (-0.71) Depth: 19 00:05:39 24192kN
10.Nc3xd5 Bb7xd5 11.e2-e4 Bd5-e6 12.Bg5-f4 0-0 13.Bf1-e2 Nb8-c6 14.0-0 a7-a6 15.Be2-d3 b6-b5 16.e4-e5 g7-g6
³ (-0.34) Depth: 19 00:29:35 115515kN
10.Nc3xd5 Bb7xd5 11.e2-e4 Bd5-e6 12.Bg5-f4 0-0 13.Bf1-e2 Nb8-c6 14.0-0 a7-a6 15.Be2-d3 h7-h6 16.Rf1-d1 b6-b5
³ (-0.34) Depth: 20 00:39:31 157531kN

(, 06.04.2007)

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