Author: John Merlino
Date: 22:21:00 04/27/04
Go up one level in this thread
On April 27, 2004 at 21:23:40, Andrew Wagner wrote:
>On ICC, a few of us were talking about the importance of not bailing out of an
>attack for a free pawn. I was reminded of this game I played a little over a
>year ago:
>
>[Event "ICC 45 45"]
>[Site "Internet Chess Club"]
>[Date "2003.01.10"]
>[Round "-"]
>[White "Porcupine"]
>[Black "ChessicStudent"]
>[Result "0-1"]
>[ICCResult "White resigns"]
>[WhiteElo "1646"]
>[BlackElo "1553"]
>[Opening "French: Steinitz variation"]
>[ECO "C11"]
>[NIC "FR.04"]
>[Time "21:15:06"]
>[TimeControl "2700+45"]
>
>1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nce2 f6 6. f4 c5 7. c3 Nc6 8. Nf3
>Qb6 9. g3 cxd4 10. cxd4 Bb4+ 11. Nc3 O-O 12. a3 Bxc3+ 13. bxc3 fxe5 14. fxe5
>Ndxe5 15. dxe5 Nxe5 16. Bf4 Rxf4 17. gxf4 Qe3+ 18. Be2 Nxf3+ 19. Kf1 Nd2+
>20. Ke1 Ne4 21. Qc1 Qxc3+ 22. Qxc3 Nxc3 23. Bg4 Bd7 24. Rf1 Rf8 25. Kd2 Ne4+
>26. Ke3 g6 27. h4 h5 28. Bh3 Kf7 29. Rac1 Bc6 30. Kd4 Kf6 31. Rc2 Rc8 32.
>Rg1 Nd6 33. Bf1 Nf5+ 34. Kc3 Ba4+ {White resigns} 0-1
>
>Position after 21. Qc1: [d] r1b3k1/pp4pp/4p3/3p4/4nP2/P1P1q3/4B2P/R1Q1K2R b - -
>
>How long does your program take to find not only the obvious Qf2+ (instead of
>taking the pawn), but the whole correct line: 21...Qf2+ 22. Ke1 Bd7!
>(threatening Ba4+) 23. a4 Rc8! (idea being Ra3 Bxa4+!) Takes crafty about 4
>seconds to see Rc8 from this position. In the game, I saw up to Ra3, but missed
>the Bxa4 idea. Unfortunate, but a good lesson to learn from. Andrew
CM_SKR on a P4-2.4 needs 3 seconds to find the whole line:
Time Depth Score Positions Moves
0:00 1/3 -3.48 1825 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.Rf1
Qxh2
0:00 1/4 -3.48 5312 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.Rf1
Qxh2
0:00 1/5 -3.73 17247 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.c4
Qd4+ 5.Ke1 dxc4
0:00 1/6 -4.45 46802 1...Qf2+ 2.Kd1 Bd7 3.a4 d4 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 dxc3
0:00 1/7 -4.20 112697 1...Qf2+ 2.Kd1 Bd7 3.a4 d4 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 dxc3
7.Bb5
0:01 1/8 -4.20 245654 1...Qf2+ 2.Kd1 Bd7 3.a4 d4 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 dxc3
7.Bb5
0:03 1/9 -3.93 780453 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 Rxc3
7.Bb5 Bc8 8.Kd2
0:10 1/10 -4.11 2610331 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 Rxc3
7.Bb5 Rf3 8.Rc1
0:32 1/11 -4.00 8363500 1...Qf2+ 2.Kd1 Bd7 3.a4 Rc8 4.Rf1
Nxc3+ 5.Qxc3 Qxf1+ 6.Bxf1 Rxc3
7.Bb5 Bc8 8.Kd2 Rh3
jm
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