Author: Moritz Berger
Date: 02:56:08 05/25/98
Here's an interesting 'positional' test position: 1k1r4/pp1bb1p1/1qn1p3/3pPr1p/1P6/P4NPP/4BPK1/R1BQ3R w - - 0 19 The (positional) key move is 19.Bb2!! which leads to a clear advantage for white (e.g. 19.Bb2 Rc8 20.Nd4 Nxd4 21.Bxd4). 19.b5 only ensures equality, 19.Bf4 (actually played by one program) lets black play another beautiful key move: 19...h4! 1k1r4/pp1bb1p1/1qn1p3/3pPr1p/1P3B2/P4NPP/4BPK1/R2Q3R b - - 0 19 How long do your programs need to play 19.Bb2 and 19...h4 (after 19.Bf4)? 19...h4 is of course much easier than 19.Bb2. Please try to let them run a little bit longer on the 19.Bb2 move since e.g. Fritz also first choses it after 19" but discards it after 47" in favour of another move. Here are results for Fritz from my P233MMX: 19.Bb2 Fritz 5.01 (98304KB HT): 441" (12 ply) 19...h4 Fritz 5.01 (98304KB HT): 2" Moritz
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