Stockfish, UCI chess engine
Leader of the ranking list JCER = 3368
🔬 Author: Joost VandeVondele
Explicitly use alpha+1 for beta in NonPV search (#939)
Fixes the only exception, in razoring.
The code already does assert(PvNode || (alpha == beta - 1)), and it can be verified by studying the program flow that this is indeed the case, also for the modified line.
No functional change.
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