Author: James Robertson
Date: 08:08:43 11/22/99
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Insomniac 0.60 on my P233, 4MB hash solves the first position at ply 9 in 14 seconds. It chooses Nxd6 at 8 ply after 5 seconds. However, the score for Nxd6 (1.31) is not substantially greater than that for its previous choice, dxc5 (1.21), so it may have seen the tactic earlier, but just discarded it based on positional reasons. James P.S. Here is the search for position #2. Depth Score Time Nodes PV 1 1 0 119 Nc3 2 4 0 1022 dxc5 dxc5 Rcd1 3 6 50 2571 dxc5 dxc5 Rcd1 Qc6 4 9 110 8029 dxc5 dxc5 Rcd1 Qc6 Rd6 5 107 220 19137 dxc5 dxc5 Rcd1 Qc6 Rd6 Qe4 Rxb6 axb5 Rxb5 6 108 990 95531 dxc5 Nbxc4 bxc4 axb5 cxb5 d5 7 121 1810 182451 dxc5 Nbxc4 bxc4 axb5 cxb5 Rxe3 fxe3 dxc5 8> 131 5050 534246 Nxd6 Nxb3 Qxb3 Qxd6 dxc5 Rxc5 Bxc5 Qxc5 Rcd1 8 131 5710 605990 Nxd6 Nxb3 Qxb3 Qxd6 dxc5 Rxc5 Bxc5 Qxc5 Rcd1 9 140 11090 1155952 Nxd6 Nxb3 Nxf7+ Qxf7 Qxb3 Qc7 d5 Rcd8 Bd3 10 145 25260 2641269 Nxd6 Nxb3 Nxf7+ Qxf7 Qxb3 Qc7 d5 Rcd8 Bd3 Be4 Check Extensions: 10133. Recapture Extensions: 31439.
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