Author: Jim Monaghan
Date: 06:15:12 11/14/02
Go up one level in this thread
On November 14, 2002 at 05:21:51, Uri Blass wrote: >On November 13, 2002 at 21:13:32, Jim Monaghan wrote: -- snip >I still know that there is a big room for improvement but when I look at the >positions that movei failed I find at least one wrong position(see the end of >the post). > >Next position seems to be wrong You're right. This seems to be a transposition of moves situation. I will add Rxd6 to the bm tag. 4rbk1/1q3ppp/2Rr4/1p1P1B2/2b1PR2/p5P1/5P1P/B1Q3K1 w - - bm Bxh7+ Rxd6; id "IQ.973"; The solution runs: 1. Bxh7+! Kxh7 2. Rxd6 Bxd6 3. Rh4+ Kg8 4. Rh8+! Kxh8 5. Qh6+ Kg8 6. Qxg7# >[D]4rbk1/1q3ppp/2Rr4/1p1P1B2/2b1PR2/p5P1/5P1P/B1Q3K1 w - - 0 1 >bm Bxh7+ > > >Movei finds Bxh7+ but later changes it's mind to Rxd6 Bxd6 Bxh7+ >When I continue the analysis the score only improces > > >depth=10 +4.16 c6d6 f8d6 f5h7 g8f8 a1g7 f8e7 e4e5 d6c5 d5d6 e7d8 h7f5 e8e6 f5e6 >f7e6 f4f8 d8d7 >Nodes: 6053294 NPS: 156821 >Time: 00:00:38.60 > >depth=11 +4.97 c6d6 f8d6 f5h7 g8h8 a1g7 h8g7 f4g4 g7f8 g4g8 f8e7 c1g5 e7d7 h7f5 >d7c7 g8e8 c7b6 g5h6 b7c7 e8a8 >Nodes: 19352494 NPS: 152489 >Time: 00:02:06.91 > >depth=11 +4.97 c6d6 f8d6 f5h7 g8h8 a1g7 h8g7 f4g4 g7f8 g4g8 f8e7 c1g5 e7d7 h7f5 >d7c7 g8e8 c7b6 g5h6 b7c7 e8a8 >Nodes: 24086138 NPS: 154428 >Time: 00:02:35.97 > >depth=12 +5.33 c6d6 f8d6 f5h7 g8f8 a1g7 f8e7 e4e5 a3a2 e5d6 e7d6 f4f6 d6c5 g7h6 >a2a1q c1a1 c4d5 a1c3 d5c4 h6e3 c5d5 >Nodes: 108694351 NPS: 154791 >Time: 00:11:42.20 > >depth=12 +5.33 c6d6 f8d6 f5h7 g8f8 a1g7 f8e7 e4e5 a3a2 e5d6 e7d6 f4f6 d6c5 g7h6 >a2a1q c1a1 c4d5 a1c3 d5c4 h6e3 c5d5 >Nodes: 112652649 NPS: 155303 >Time: 00:12:05.37 > >After Bxh7+ movei cannot see +5 or even +4 and finds only > >depth=11 -2.20 g8h7 c6d6 f7f6 d6c6 h7g8 a1d4 a3a2 f2f3 f8b4 f4f5 b7d7 g3g4 >Nodes: 11098490 NPS: 155050 >Time: 00:01:11.58 > >depth=12 -2.23 g8h7 c6d6 f7f5 d6e6 e8e6 d5e6 c4e6 e4f5 e6c4 f5f6 a3a2 c1c2 h7g8 >c2g6 c4d5 f6g7 f8g7 a1g7 b7g7 >Nodes: 29861432 NPS: 157472 >Time: 00:03:09.63 Thanks, Jim
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