Consolidate pawn storm types
authorprotonspring <mike@whiteley.org>
Thu, 10 May 2018 13:46:13 +0000 (15:46 +0200)
committerSt├ęphane Nicolet <cassio@free.fr>
Thu, 10 May 2018 13:46:32 +0000 (15:46 +0200)
commit255df4ffae29f4a038c9881c1f2f675e2f21f71e
tree507a7040bd7f8f22880064fd341b2a684e8fe726
parent76d4a80084f2ff61b0ea433ac829914370736b5e
Consolidate pawn storm types

Simplification: the Unopposed and Unblocked pawn storm types are mathematically
similar enough to combine with no Elo loss. This reduces the pawn storm types
to BlockedByPawn and UnBlocked.

STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 116869 W: 23549 L: 23605 D: 69715
http://tests.stockfishchess.org/tests/view/5af2def90ebc5968e6523f82

LTC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 39912 W: 6090 L: 5998 D: 27824
http://tests.stockfishchess.org/tests/view/5af3b2e20ebc5968e6524013

Closes https://github.com/official-stockfish/Stockfish/pull/1592

Bench: 5244314
src/pawns.cpp