Author: Dann Corbit
Date: 11:39:28 06/07/99
Go up one level in this thread
On June 07, 1999 at 06:32:39, Harald Faber wrote: >On June 04, 1999 at 12:13:59, Eran wrote: > >>Since Junior5 does not have underpromotion code, I am wondering whether next >>version of Junior, probably Junior 6, will have underpromotion code, won't it? >>Well, basically all strongest chess programs should be 100% state of art, right? >>In other words, since Junior5 does not have underpromotion code, it cannot be >>100% state of art, is it? >> >>Eran > >How often did you have a position where underpromotion was best move? > >I don't miss this "feature". In my database (for which basically all positions are from actual games) I have 218 promotions where promotion to knight is clearly the best move, 85 where promotion to bishop is the best move, and 147 promotions to rook. Consider the following: 6n1/5P1k/7p/np4b1/3B4/1pP4P/5PP1/1b4K1 w - -; ce 32766; pv f8=N#; bm f8=N#; id "BWTC.0907"; 4K3/5P1k/8/8/7N/8/8/8 w - -; ce 32758; pv f8=B Kg8 Nf3 Kh7 Kf7 Kh8 Bg7+ Kh7 Ng5#; bm f8=B; id "IMCP.015"; 4K3/3P4/3kN3/8/4PP2/8/8/8 w - -; ce 32762; pv d8=R+ Kc6 Rb8 Kd6 Rb6#; bm d8=R+; id "IMCP.070";
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