Author: Pete R.
Date: 14:24:20 08/19/99
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On August 19, 1999 at 15:13:23, Robert Hyatt wrote: >On August 18, 1999 at 20:35:00, Pete R. wrote: > >>I have a position as follows: white has king and rook, black has king knight and >>pawn. I have the knpkr tablebase files. When it's black to move, the tablebase >>returns the value instantly. However when it's white to move the program thinks >>while doing tablebase hits, presumably on the 4 man set. Evidently I don't >>understand tablebase files, so could someone explain to me what's going on here? >>Knpkr only applies to white having knp?? > > >Are you talking about crafty here? If so, look to see if you see "drawn at >root, trying for swindle..." in the output, or else do "swindle off" to disable >"swindle mode" > >If the position is a draw at the root, crafty tries a search to give you a >chance to make a mistake and lose. I just posted below on that before reading your response. I did see the "drawn at root, trying for swindle" when I kicked it out of analyze move. I just repeated the test in analyze mode with a kbpkr position with white have k+r. Even though I tell Crafty to analyze, when it's on analyze.white, I put in a move and it returns immediately with no depth, time, score, or variation values. Then on analyze.black I make a random move and it comes back instantly with an EGTB move and a score like MAT20. Then I make the suggested move on analyze.white and again nothing is returned. This happens even with swindle off. In the Chessbase interface the behavior for both Hiarcs and Crafty is similar to this, when one side is on move the 5 piece tablebase is hit instantly, on the other side it starts analyzing, while getting thousands of tablebase hits, which must be on the 4 man subset. ??
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