Author: Enrique Irazoqui
Date: 09:12:07 02/28/01
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On February 28, 2001 at 11:48:39, Sune Larsson wrote: > > [D]r1bq1rk1/ppp2pp1/3b1n1p/2p1p3/4P2B/2NP1N2/PPP2PPP/R2Q1RK1 w - - 0 1 > > Here is an example of a definitive no-no. This position happened in > Winter(!) - Capablanca, London 1922. Here white was a bit careless > and played 1.Nd5? after 1.-g5 2.Nxf6+ Qxf6 3.Bg3 Bg4 4.h3 Bxf3 > 5.Qxf3 Qxf3 6.gxf3, the proud bishop was reduced to a simple pawn. > This preacher never saw the daylight anymore... > > Test1: 1.Nd5? is a clear no-no and should be evaluated with penalty > points. > > Test2: If 1.Nd5? is faced, your program should give definite +scores > to the line above. And choose this path in play. > > Sune Deep Fritz has Nd5 as the 22nd best move, the last one that doesn't give up material. Not bad. New position r1bq1rk1/ppp2pp1/3b1n1p/2p1p3/4P2B/2NP1N2/PPP2PPP/R2Q1RK1 w - - 0 1 Analysis by DEEP FRITZ : 1. ² (0.28): 1.Nd2 Be6 2.Nc4 Qe7 3.Qf3 Rfd8 4.a3 a6 2. = (0.25): 1.Qe1 Be6 2.Nd2 g5 3. = (0.19): 1.Qe2 Bg4 2.a3 Be6 3.Rfd1 c6 4.Rd2 Qe7 5.b3 Rad8 6.Qe3 4. = (0.19): 1.a3 Bg4 2.Qe2 Be6 3.Rfd1 c6 4.Rd2 Qe7 5.b3 Rad8 6.Qe3 5. = (0.19): 1.Re1 Bg4 2.Qe2 6. = (0.19): 1.Qc1 Be6 2.Nd2 Be7 3.Bg3 Nd7 4.f4 exf4 5.Bxf4 Re8 6.Nb5 c6 7. = (0.16): 1.b3 Be6 2.a3 c6 3.Nd2 Be7 4.Nc4 Nd7 8. = (0.13): 1.Qd2 Be6 2.a3 c6 3.b3 a5 4.Rfd1 b5 5.Qe2 9. = (0.13): 1.Rc1 Be6 2.Nd2 Be7 3.Bg3 Nd7 4.f4 exf4 5.Bxf4 Bf6 6.Nb3 10. = (0.13): 1.Rb1 Bg4 2.Qe2 c6 3.Rfd1 Be6 4.Rd2 b5 5.Ra1 a5 6.a4 11. = (0.13): 1.h3 Be6 2.Qe2 Qe7 3.b3 Rad8 4.Qe3 Rfe8 12. = (0.13): 1.a4 Be6 2.a5 a6 3.Qe2 Qe7 4.b3 Rad8 5.Qe3 Rfe8 13. = (0.13): 1.Bg3 Bg4 2.h3 Bh5 3.Bh4 c6 4.Qe2 Qe7 5.Qe3 Qe6 6.a3 14. = (0.13): 1.Nb5 Bg4 2.Qe2 Qe7 3.Nc3 Qe6 4.Qe3 c6 5.h3 Bh5 6.a3 15. = (0.06): 1.Ne1 Be6 2.a3 Be7 3.Bg3 Bd6 4.Qf3 Qd7 5.Bh4 Ng4 6.b3 16. = (0.06): 1.Kh1 Be6 2.Qe2 a6 3.Kg1 17. = (0.06): 1.Ne2 Be6 2.Nd2 Re8 3.Nc3 Be7 4.Bxf6 Bxf6 5.Qh5 Bg5 6.Nc4 18. = (0.06): 1.Nb1 Be6 2.Qe1 19. = (0.03): 1.Qb1 Be6 2.Nd2 Be7 3.Qe1 Qd4 4.Nb3 Qd6 5.Qe3 20. = (-0.03): 1.Bxf6 Qxf6 2.Nd5 Qd8 3.Nd2 c6 4.Ne3 Be6 5.Qh5 Qg5 6.Qxg5 hxg5 21. = (-0.09): 1.Na4 Bd7 2.b3 Bxa4 3.bxa4 Rb8 4.Rb1 c6 5.a5 Qxa5 6.Bxf6 gxf6 22. = (-0.12): 1.Nd5 g5 2.Bg3 Nxd5 3.exd5 Bg4 4.h3 Bh5 5.Re1 Qf6 6.Re3 23. µ (-0.81): 1.g3 (Irazoqui, Cadaqués 28.02.2001)
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