Author: Will Singleton
Date: 08:40:24 05/08/03
Go up one level in this thread
On May 08, 2003 at 11:08:53, Will Singleton wrote: >On May 08, 2003 at 10:01:40, Richard Pijl wrote: > >>On May 08, 2003 at 09:26:42, stuart taylor wrote: >> >>> >>>It's certainly (to the naked eye) a piece for 2 pawns and more, if not a good >>>bit more! It can't be TOO much of a mistake! >>>If there were serious looking counter attacking ideas for Black, then it might >>>need more investigation. >>>S.Taylor >> >>Baron, like the King, initially selects Nxf7 and drops it after 40 seconds (on a >>PIII-500) for Bf4. The reason seems to be that it values Bf4 a little better >>than Nxf7, not that Nxf7 is incorrect. >> >>I forced Nxf7 to check if there was a problem and I saw the score drop >>(perspective of white from 122 to 46, and after more than an hour (again, on the >>PIII-500) I got a fail high. But no convincing winning scores (yet). >> >> ply time nodes score pv >> >> 5( 9)- 0 15129 -109 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 >> 5(11)& 0 18763 -122 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 >> 5(11). 0 20409 -122 e8f7 g2g4 f5h7 c4e6 f7e8 h1e1 >> 6(12)& 0 37976 -114 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >> 6(12). 0 48971 -114 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >> 7(15)& 2 130800 -111 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5 >>f4g5 h6g5 f7g7 >> 7(15). 2 202327 -111 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 e7g5 >>f4g5 h6g5 f7g7 >> 8(19)+ 5 388558 -76 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 d2f4 c7f4 >>f7f4 e7g5 f4e3 >> 8(19)& 8 553021 -57 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8 >>f5h7 >> 8(19). 9 667706 -57 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 c7d8 >>f5h7 >> 9(23)& 29 1928019 -67 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >>f5h7 f8h7 >> 9(23). 31 2098188 -67 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >>f5h7 f8h7 >> 10(26)& 112 7159794 -46 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >>f5h7 h8h7 c3e4 >> 10(26). 120 7630546 -46 e8f7 g2g4 f5h7 c4e6 f7e8 d1e1 g8f6 e6f5 d7f8 >>f5h7 h8h7 c3e4 >> 11(31)& 395 24578175 -60 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >>g7f7 c7d6 f7e6 d6e6 c4e6 >> 11(31). 432 27077394 -60 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 f7g7 e7f6 >>g7f7 c7d6 f7e6 d6e6 c4e6 >> 12(33)& 1110 68274645 -59 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6 >>e1e6 d6d4 d2h6 d4g4 >> 12(33). 1226 75878266 -59 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 c7d6 >>e1e6 d6d4 d2h6 d4g4 >> 13(34)- 2061 128125614 -94 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 d7b6 >>c4b3 c7h2 d4d5 b6d7 >> 13(36)& 4119 251648743 -93 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5 >>d4d5 a7a6 d5c6 b7c6 c3e4 >> 13(36). 4119 251648790 -93 e8f7 g2g4 f5h7 e2e6 f7e8 e6f7 e8d8 h1e1 g7g5 >>d4d5 a7a6 d5c6 b7c6 c3e4 >> >>Richard. > >Seems that it's a bit more complicated than that. What the programs miss is >that after g5, the best move is not d5, but Re6, after which black can more or >less resign. Looks like Nxf7 might just be too deep for any program. > >[D]r2k2nr/ppqnbQ1b/2p4p/6p1/2BP2P1/2N5/PPPB1P1P/2KRR3 w - - Actually, I guess either d5 or Re6 wins easily here. The question seems to be whether the previous move (g5) can be improved, perhaps with Ndf6. Will
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