Author: Dann Corbit
Date: 15:42:28 01/19/01
Go up one level in this thread
On January 19, 2001 at 18:30:14, Dann Corbit wrote:
>On January 19, 2001 at 15:31:11, Thomas Lagershausen wrote:
>
>>In the following game white has a winning knightsacrifice after the important
>>pawnmoves 15.b4! and 16.b5!.Is a program able to find the plan?
>>
>>[Event "40/120"]
>>[Site "?"]
>>[Date "1992.11.25"]
>>[Round "4"]
>>[White "Lagershausen"]
>>[Black "Fidelity Avantgard#6"]
>>[ECO "A21"]
>>[Result "1-0"]
>>
>>1. c4 e5 2. Nc3 Nc6 3. Nf3 d6 4. d4 Bg4 5. d5 Nce7 6. e4
>>Ng6 7. Be2 Nf4 8. Bxf4 exf4 9. Nd4 Bd7 10. Bg4 Ne7 11. O-O
>>Qc8 12. Bxd7+ Qxd7 13. Qb3 O-O-O 14. Qa3 Kb8 15. b4 g6
>>16. b5 Bg7 17. Nc6+ bxc6 18. bxc6 Nxc6 19. Rab1+ Ka8
>>20. Nb5 Bd4 21. dxc6 Qxc6 22. Nxd4 Qd7 23. Qa6 c5 24. Nb5
>>Rb8 25. Nc3 f5 26. Nd5 fxe4 27. Nb6+ Rxb6 28. Rxb6 Qc8
>>29. Qa4 Qe8 30. Qxe8+ Rxe8 31. Rxd6 1-0
>
>Here is the position in question:
>[D]1k1r1b1r/pppqnppp/3p4/3P4/2PNPp2/Q1N5/PP3PPP/R4RK1 w - - bm b4;
Amy does not seem to find it at tournament time controls:
White(1): test langer.epd
Problem 1:
best move is b4
+---+---+---+---+---+---+---+---+
8 | |*K*| |*R*| |*B*| |*R*|
+---+---+---+---+---+---+---+---+
7 |*P*|*P*|*P*|*Q*|*N*|*P*|*P*|*P*| Hashkey: 7e3537fe
+---+---+---+---+---+---+---+---+
6 | | | |*P*| | | | |
+---+---+---+---+---+---+---+---+
5 | | | | P | | | | | Black (33000, 25000) PNBRQ
+---+---+---+---+---+---+---+---+
4 | | | P | N | P |*P*| | | White (33000, 25000) PN.RQ
+---+---+---+---+---+---+---+---+
3 | Q | | N | | | | | |
+---+---+---+---+---+---+---+---+
2 | P | P | | | | P | P | P | Index: 63
+---+---+---+---+---+---+---+---+
1 | R | | | | | R | K | | MateThreat: 0 0
+---+---+---+---+---+---+---+---+
a b c d e f g h
TC: 40 moves in 144000 secs
TL: 3150/12600
GamePhase: Opening
It Time Score principal Variation
11 4.6 +0.304 1. Nce2 Ng6 2. Qf3 Ne5 3. Qxf4 Nxc4 4. b4 Ne5 5. Nf5 Re8
6. Ned4
11 30 469 1140963 1. Nce2 Ng6 2. Qf3 Ne5 3. Qxf4 Nxc4 4. b4 Ne5
5. Nf5 Re8 6. Ned4
11 20.6 +0.304 1. Nce2 Ng6 2. Qf3 Ne5 3. Qxf4 Nxc4 4. b4 Ne5 5. Nf5 Re8
6. Ned4
11 30 2065 5127579 1. Nce2 Ng6 2. Qf3 Ne5 3. Qxf4 Nxc4 4. b4 Ne5
5. Nf5 Re8 6. Ned4
12 43.7 +0.256 1. Nce2 Ng6 2. Nf5 Ne7 3. Qd3 Nxf5 4. exf5 Qe7 5. Nxf4
Qe5 6. Qd2 Qxf5
12 25 437810912746 1. Nce2 Ng6 2. Nf5 Ne7 3. Qd3 Nxf5 4. exf5 Qe7
5. Nxf4 Qe5 6. Qd2 Qxf5
12 2:05 +++ 1. Nf3
12 0 1253330800810 1. Nf3!
12 2:05 +0.272 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Rhe8 5. Rfe1 Bf6
6. c5 Ne5
12 27 1258130915159 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Rhe8
5. Rfe1 Bf6 6. c5 Ne5
12 2:12 +0.272 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Rhe8 5. Rfe1 Bf6
6. c5 Ne5
12 27 1320432408886 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Rhe8
5. Rfe1 Bf6 6. c5 Ne5
13 2:56 +0.256 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Bf6
13 25 1768843000815 1. Nf3 Ng6 2. Nb5 a6 3. Nbd4 Be7 4. Qc3 Bf6
13 6:16 +++ 1. Ncb5
13 0 3763491512076 1. Ncb5!
13 6:22 +0.272 1. Ncb5 a6 2. Nc3 Ng6 3. b4 Be7 4. b5 Bf6 5. Nf3 axb5 6.
Qb3
13 27 3822092887515 1. Ncb5 a6 2. Nc3 Ng6 3. b4 Be7 4. b5 Bf6 5.
Nf3 axb5 6. Qb3
13 7:58 +0.272 1. Ncb5 a6 2. Nc3 Ng6 3. b4 Be7 4. b5 Bf6 5. Nf3 axb5 6.
Qb3
13 27 47877116704431 1. Ncb5 a6 2. Nc3 Ng6 3. b4 Be7 4. b5 Bf6 5.
Nf3 axb5 6. Qb3
14 7:58 1/39 1. Ncb5
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