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Simplify "fail high upon reduction" in null search
authorMarco Costalba <mcostalba@gmail.com>
Mon, 8 Jul 2013 05:23:30 +0000 (07:23 +0200)
committerMarco Costalba <mcostalba@gmail.com>
Mon, 8 Jul 2013 05:23:30 +0000 (07:23 +0200)
Do not use threat move to detect the condition. This
let us to retire the big allows() function.

Test at short TC was within 50% score:
LLR: -2.95 (-2.94,2.94)
Total: 38272 W: 7941 L: 7940 D: 22391

To be verified with reverse long TC

bench: 4191565


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