Author: John Merlino
Date: 10:35:22 09/09/02
Go up one level in this thread
On September 09, 2002 at 05:11:42, Uri Blass wrote: >[D]5rk1/1pb5/5qb1/p2p4/2pP1pPp/P1P2P1N/NP3QP1/4RK2 b - - 0 42 am Re8 > >I want to change it from am to bm >I will be happy if people can help me. > >Movei played Re8 and lost the game. > >I found after the game that Re8 is losing material and a lot of programs play >that move. > >After a better move(for example Kg7) black does not lose material(at least yace >can see no significant change in score for Kg7 even at depth 19 when depth 11 is >enough to fail low with Re8. >The question is what are the good moves to find here. > >I find that a lot of programs like Re8 only to change their mind later. > >Uri Chessmaster 9000, on a PIII-733, needs to get to depth 12 (2:27) to see that Re8 is bad. It then switches to Bd3+, and then switches to Kg7: Time Depth Score Positions Moves 0:01 1/6 0.01 83806 42...Rf7 43.Kg1 Rd7 44.g5 Qh8 45.Qe2 Qh7 0:01 1/6 -0.06 92195 42...b5 43.g5 Qf5 44.Qxh4 Qc2 45.Qh6 Bd6 0:01 1/6 -0.12 110113 42...Kg7 43.Nc1 Rh8 44.Qe2 Re8 45.Qxe8 Bxe8 46.Rxe8 0:02 1/7 -0.05 152550 42...Kg7 43.Nc1 Rh8 44.Qe2 Re8 45.Qxe8 Bxe8 46.Rxe8 b5 47.Ne2 0:03 1/7 -0.11 216142 42...Re8 43.Rxe8+ Bxe8 44.Qe2 Ba4 45.Nc1 b6 46.Nf2 0:04 1/8 0.01 297157 42...Re8 43.Rxe8+ Bxe8 44.g5 Qf5 45.Nc1 Qb1 46.Qd2 Qf5 47.Qe2 0:05 1/8 -0.09 428785 42...Kg7 43.Kg1 Rh8 44.Qd2 b5 45.Nf2 Rd8 46.Qe2 Re8 0:09 1/9 0.08 788156 42...Kg7 43.g5 Qf7 44.Qxh4 Rh8 45.Qf2 b5 46.Kg1 Bd3 47.Qd2 0:13 1/9 -0.03 1071307 42...Re8 43.Rxe8+ Bxe8 44.Nc1 Bg6 45.Qe2 b5 46.Nf2 Bf7 47.Kg1 0:21 1/10 0.03 1718161 42...Re8 43.Rxe8+ Bxe8 44.Nc1 Bg6 45.Qe2 Bf7 46.Nf2 b5 47.Kg1 b4 0:50 2/11 0.00 4286719 42...Re8 43.Rxe8+ Bxe8 44.Nc1 Bg6 45.Qe2 Bf7 46.Qc2 Bg6 47.Qe2 2:27 3/12 0.86 13659273 42...Re8 43.Rxe8+ Bxe8 44.Nc1 Bg6 45.Qd2 b5 46.Ne2 Bd3 47.Kg1 Bxe2 48.Qxe2 Kf8 49.Nf2 Kg7 3:09 3/12 0.45 17276623 42...Bd3+ 43.Kg1 Bg6 44.Nc1 Bf7 45.g5 Qb6 46.Qxh4 Qxb2 47.Ne2 Qxa3 48.Nhxf4 Qd6 3:32 3/12 0.21 19158076 42...Kg7 43.g5 Qf7 44.Qxh4 Rh8 45.Qf2 Bf5 46.Nc1 Bd7 47.Qe2 Re8 48.Qd2 6:54 4/13 0.24 37549398 42...Kg7 43.g5 Qf7 44.Qxh4 Rh8 45.Qf2 Bd3+ 46.Kg1 Bf5 47.Nc1 Bd6 48.Qe2 Qh5 49.Qf1 Qf7 jm
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