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Subject: A new kind of "swindle mode" for Crafty

Author: Vincent Lejeune

Date: 04:15:45 09/28/00


I would suggest a new type of "swindle mode" : the method is based on 1) make
the right move difficult to find for a human and 2) play quickly to put pressure
on human

Here's the Idea : if an endgame is a tablebase draw, select all the drawing
moves and explore them only in tablebase to measure where the human will have
the hardest work to do : calculate, for all this drawing moves, with iterative
deepening, the worst ratio (number of drawing moves for human divide by number
of possible moves for human) for the human in the tree, because a narrower path
is difficult to follow (see the game Deep Thought-Alex Fishbein post some days
ago: where human had only one drawing move he didn't find it). The depth still
to be dertimined may be 5 plies, may be 10 or simply play right after the
human's move to put maximum pressure.

This method exploit the main point of tablebase eg : the precision allied with
the speed; where the human brain get kill by machine.

I hope that Bob will test this algorithm for Crafty , I'm confident in it :)

If I was not enough clear please tell me...

Best regards
Vincent Lejeune



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