Author: Gerd Isenberg
Date: 13:10:49 11/04/02
Go up one level in this thread
On November 04, 2002 at 14:55:54, Sune Fischer wrote: >On November 04, 2002 at 14:13:41, Gerd Isenberg wrote: > >>On November 04, 2002 at 07:34:29, Sune Fischer wrote: >> >>>Going through the november issue of "Skakbladet", the chess magasin here in >>>Denmark, I found a few positions with some very deep moves, much too deep for >>>frenzee. >>> >>>Granted some of the positions are won even with the second best move, but for >>>the sake of beauty find the best move! :) >>> >> >>Hi Sune, >> >>IsiChessMMX results with amd xp2.1+ 256MB Hash: >> >>>r1r3k1/1pq1bppp/3pbn2/p3p3/P3P1PP/nNN2P2/KPP2Q2/2BR1B1R b - - 0 1 bm b5; >>>Motylev-Gelfand, Russia-World 2002 >> >>b5 found immediatly at depth 3. Increasing score from +24cp to +68cp at depth 6. >>FH at 11/20 with +114cp after 1:27. > >Very nice, frenzee cannot see it even at ply 12, it prefers Nc4. >I wonder if this is evaluation or tactics, seeing it at depth 3 is pretty fast I >think. Very natural move for a human btw, just tearing open the position :) > King safety. The b5 line with 2.Kxa3 b4+ 3.Ka2 bxc with some checks in qsearch? >>>[D]3r4/ppp4p/1bp1k3/4pp2/8/BPP5/P2NKprP/R4R2 b - - 0 1 bm Rxd2; Gufeld-Kavalek, >>>OL 1962 (Kavalek's best game ever) >> >>not found in 5 minutes. Likes e4 with rather high score up to +380cp. > >I think the idea is to do a pawn raid, without the knight to defend white is >lost. > Yes, overestimates the passers. Lack of knowledge? >>>[D]2bq3k/2p4p/p1np4/7P/2BPPQp1/2p2P2/r7/2KR2R1 b - - 0 1 bm Ra3; Bagirov-Gufeld >>>1973, (Gufeld: maybe my best move ever) >> >>found after 1 second at depth 7/11, score +240cp. >>FHs after 0:17 and 0:54 with 308 resp. 369cp > >I got that on and off, eventually it stuck with Ra4. > >>>[D]2bq3k/2p4p/p2p4/7P/1nBPPQP1/r1p5/8/1K1R2R1 b - - 0 1 bm Be6, am c2; >>>Bagirov-Gufeld 1973 >> >>This position is also member (13) of the BT2630 testsuite. >> >>1:26 for Be6 with Be6 Bxe6 Nd3 +47cp >>FH after 1:40 +105cp and 1:52 with +163cp >>finally after 5:07 531cp with the line >>1...Bb6 2.Qc1 c2+ 3.Kb2 Bxe4 4.Kxa3 c5 5.Kb2 Qb6 6.Kc3 cxd1Q 7.Qxd1 Nd5+ >>8.Kxc4 Ne3+ 9.Kd3 Nxd1 > >Very nice. >So, how is it done? ;) Extension tuning? Eval of course. > >-S. > >>Regards, >>Gerd >>> >>>-S.
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