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Chess engine: Catto 0.12.2

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Catto - UCI chess engine
Author: Phu Minh  Rating CEDR=2316
New versions of the Catto engine are released every few moments, so there is no time for thorough testing. Maybe the author should reduce the frequency of releasing new builds to fine-tune them? 

v.0.12.2:
Add mate info in UCI client. Prior to this, the engine would just send out ridiculously high/low points rather than sending out a mate option which can be annoying.


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