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My cousin Judit could beat this program with her eyes closed. Why is it so weak?

April 26, 2017beat closed cousin eyes judit program weak

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My cousin Judit could beat this program with her eyes closed. Why is it so weak?

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There are a couple of reasons for this. The main one is that tkChess is not really a serious chess program; its static evaluator is very limited (and mostly stolen from GNU Chess, but that’s another story), and it has a poor understanding of endgames. The second reason is that tkChess’s search depth is set very low. Currently it only searches to 4 plies under most circumstances (it can search deeper in response to checks or captures). This just isn’t deep enough to play strong chess.