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Subject: Re: Is Your program falling in these traps (12 positions)?

Author: Danniel Corbit

Date: 16:55:35 09/23/98

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I let the three problem postions churn for a while in a low priority session,
and it solved them all except this one:
7Q/kp3ppp/8/8/q3p3/P5PP/5b2/R1R3K1 w - - acd 12; acn 177093961; acs 1800; am
Kxf2; ce 566; pv Kxf2 Qb3 Qd8 Qf3+ Ke1 Qxg3+ Kd2 Qf2+ Kc3 Qc5+ Kb3 Qb5+ Kc2 Qc5+
Kb2 Qb5+ Ka2 Qe2+ Kb1 e3;
What is it about this position that causes the blindness?  Is it a null-move
problem?

Here are the two other solutions.  I would be interested to know if the pv
indicates the best move or just a decent one.
r4r2/ppp2p1k/3p1Rpp/3P4/1Q1Nq3/3N4/PPP3PP/6K1 b - - acd 13; acn 246362491; acs
1802; am Qxd5; ce -151; pv Rae8 Nb5 Qxb4 Nxb4 Kg7 Rf4 g5 Rf1 a6 Nc3 Re7 Kf2 Rfe8
Kg3;

r4rk1/5p1p/p2RbnpQ/q1p1p2P/1pP1P3/1P3P2/P1N3P1/2K2B1R b - - acd 14; acn
203962723; acs 1801; am Nxh5; ce -103; pv Rfe8 hxg6 fxg6 Qg5 Nd7 Kb1 Qc7 Rd2 a5
Qh6 Nf6 Ne3 Rad8 Bd3;



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