From: Stéphane Nicolet <cassio@free.fr>
Date: Mon, 5 Dec 2016 17:49:07 +0000 (+0100)
Subject: Pawn flank attacks
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=0d33466bcd84d9d58ea7049b224f375ba6a51221;hp=0d33466bcd84d9d58ea7049b224f375ba6a51221

Pawn flank attacks

This patch tweaks some pawn values to favor flank attacks.

The first part of the patch increases the midgame psqt values of external pawns to launch more attacks (credits to user GuardianRM for this idea), while the second part increases the endgame connection values for pawns on upper ranks.

Passed STC:
LLR: 2.95 (-2.94,2.94) [0.00,4.00]
Total: 34997 W: 6328 L: 6055 D: 22614

and LTC:
LLR: 2.96 (-2.94,2.94) [0.00,4.00]
Total: 13844 W: 1832 L: 1650 D: 10362

Bench: 5884767
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