Author: James T. Walker
Date: 03:57:57 01/19/99
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On January 19, 1999 at 02:07:04, KarinsDad wrote: >On January 19, 1999 at 01:05:41, Lawrence S. Tamarkin wrote: > >>As other post answer the question of underpromotion, I think I'll mention that >>when people here bring it up, its usually in relation to the Junior program, >>which does not yet have the code for reconizing when it would be more benificial >>to underpromote in order to win the game more quickly, or at all. (Just about >>every other top program does calculate underpromotion lines) >> >>Amazingly, the program appears to play incredibly strongly anyway, (Kramnik said >>some complimentry stuff about it in the last Chess Base Magazine, and it has won >>the World Micro Computer Championship), and so people wonder how much even more >>strong it might be if this small feature is added to the next version. >> >>mrslug - the inkompetent chess software addict! > >Probably not significantly. When was the last time you underpromoted in a game >or had a computer do it to you? It would be nice if the program was complete, >though. It would also be interesting in the computer vs. computer tournaments if >someone went through and calculated some statistics on this. > >I assume Junior allows underpromotions as legal moves (if it doesn't, then you >could not play real chess against it, it would be a variant), it just doesn't >either generate them itself or what? It considers them only if every other move >leads to mate? > >Do you know any details on this (I haven't read the other posts on this). > >KarinsDad :) >>>>>>>>>>>>>>>>> I posted a game about a month ago in which Nimzo99 underpromoted two times against Junior 5.0 to win the game. The first was a knight and the second underpromotion was to a rook(The only move). Also, in recent Chess Life magazine there was a problem,mate in 8 I think, that involved underpromotion. Junior thought it was mate in 4 or something like that because it did not allow for the under promotion. This makes me worry about using Junior for analysis in games where undrpromotion is possible. I still like the program's style of play. Jim Walker
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