Author: Thomas Mayer
Date: 07:14:11 09/22/01
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Hi Gian-Carlo, here is a game to that issue: [Event "1st Intl. CSVN Trn."] [Site "Leiden NED"] [Date "2001.05.20"] [Round "07"] [White "Tao"] [Black "Quark"] [Result "1-0"] 1. e4 e5 2. Bc4 Nf6 3. f4 Nxe4 4. Nc3 Nd6 5. Bb3 exf4 6. Nf3 Be7 7. Ne5 Bh4+ 8. g3 fxg3 9. O-O gxh2+ 10. Kh1 O-O 11. Qh5 Bf6 12. d4 b6 13. Kxh2 Ba6 14. Rf3 Bxe5+ 15. dxe5 g6 16. Qh6 Qe7 17. exd6 Qxd6+ 18. Bf4 Qd4 19. Ne4 Bf1 20. Raxf1 1-0 Quark fall in a booktrap here... last bookmove of Tao was 12. d4 (Quark was after 3. f4 out of book) Position after 12. d4 [D]rnbq1rk1/pppp1ppp/3n1b2/4N2Q/3P4/1BN5/PPP4p/R1B2R1K b - d3 0 12 And now take Yace as black and let your own program try to win that with different time controls. Black is lost in this position, but that is not so easy for white to discover (You will have scores from white about -3, but that is not the problem - it must find the win, not the correct score) I have tested this with several engines, e.g. Crafty failes, Shredder failes etc. - Gambit Tiger won quite easily... (Yace was always black) new Quark can equalize, with longer time controls it win... The results may differ concerning your time control, but I think if this position occurs any engine should win this with white if it has around 15 minutes for the rest of the game... in fact not many can... :) Because of that, I think this is a nice test for king-safety and how it works... (Known as quite good in king safety is for example Phalanx - and well, it does also a good job here... older Quarks do very very bad, because they do not see the attacking potential here... Greets, Thomas
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