Author: Bryan Hofmann
Date: 07:48:51 04/28/04
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
Tao 5.7 Beta finds it in less then a second;
Tao57-Beta
1 00:00 2.13 Qf2+ Kd1 Bd7
2 00:00 2.19 Qf2+ Kd1 Qc5 a4 Nxc3+ Ke1
3 00:00 2.26 Qf2+ Kd1 Bd7 a4 Rc8
3+ 00:00 2.26 Qh3
3 00:00 2.57 Qh3 Kd1 Nxc3+ Kd2
4 00:00 2.25 Qh3 Rf1 Kf8 c4 Qh4+ Kd1 Qxh2
4+ 00:00 2.25 Qf2+
4 00:00 2.88 Qf2+ Kd1 Bd7 a4 Rf8 Rf1 Qxh2
5 00:00 2.95 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2
6 00:00 3.42 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Nxc3+ Qxc3 Qxf1+ Bxf1 Rxc3
7 00:00 3.58 Qf2+ Kd1 Bd7 a4 d4 Rf1 Nxc3+ Qxc3 Qxf1+ Bxf1 dxc3
8 00:01 4.22 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 dxc4 Qe3
9 00:01 4.24 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 dxc4 Qe3 Qg2
10 00:03 4.32 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Qc2 Nc3+ Ke1 Qg2
11 00:07 4.75 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Rf3 Nc3+ Rxc3 dxc3 Qxc3
Qxf4
12 00:19 4.75 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Rf3 Nc3+ Rxc3 dxc3 Qxc3
Qxf4
13 00:50 4.82 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Rf3 Rd8 Qc2 Nc3+ Ke1 Qg1+
Rf1 Qe3
14 11:07 4.86 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Qc2 Nc3+ Ke1 Rxc4 Bd1 Qg3+
Qf2 Qd3 Be2
15 39:25 5.01 Qf2+ Kd1 Bd7 a4 Rc8 Rf1 Qxh2 c4 d4 Qc2 Nc3+ Ke1 Qg3+ Rf2 e5
Qd3 Nxe2 Qxg3 Nxg3 fxe5 Rxc4
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