Author: Richard A. Fowell (fowell@netcom.com)
Date: 13:23:10 02/06/99
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On February 06, 1999 at 03:50:03, Marc Plum wrote: >A question for KK or anyone else who knows. In the KK review of Hiarcs 7.0, >flaw number five on his list is that the opening book editor will not accept >underpromotions. Can I assume that underpromotions are both accepted and >analyzed during normal play, and analysis of positions? > >Marc Plum Yes. HIARCS 7.0 indeed underpromotes and analyzes underpromotions. given this position (note that queen promotion is stalemate) 5B2/1P6/2k1K3/8/8/8/8/8 w - - HIARCS produces First Choice: Rook Promotion 11 1.b8=R Kc7 Bd6+ Kc6 Rc8+ Kb7 Kd7 Kb6 Rb8+ = 2716 Next best: Bishop promotion 11 1.b8=B Kb7 Bg3 Kc6 Bf2 Kc7 Kd5 Kd7 Bd6 Ke8 Kc6 = 2200 Third Best: Knight promotion 13 1.b8=N+ Kb5 Kd5 Kb6 Bc5+ Kb7 Nc6 Kc7 Ne5 Kb7 Kd6 Ka6 = 2209 backing up one move (with the Black King at c5, and given HIARCS Black, HIARCS forsees: 12 1...Kc6 b8=R Kc7 Bd6+ Kc6 Rc8+ Kb5 Kd5 Ka5 Rb8 Ka4 =-2720 Note: these variations were recorded using my "HIARCS tip #2" - see my separate post. Richard A. Fowell
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