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(parent: 5093539) | patch
Implement mate killers
authorH.G.Muller <hgm@hgm-xboard.(none)>
Tue, 7 Feb 2017 19:23:12 +0000 (20:23 +0100)
committerH.G.Muller <hgm@hgm-xboard.(none)>
Tue, 7 Feb 2017 20:03:13 +0000 (21:03 +0100)
commitacc7029e7c2709dae402ee4d17776214e97ebcbe
treeea060179424ef3723167485ef3a05ee7f7bd11cctree | snapshot
parent5093539b9464134604c1d66b84c8cb34b40d6ccdcommit | diff
Implement mate killers

Moves that force mate aftera check evasion are remembered in a mateKillers
table, indexed by the preceding evasion. Such moves are tried in QS as
reply to the same evasion. This should make it more difficult to push
tsume mates over the horizon by spite checks in a hisshi situation.
dropper.c diff | blob | history
Engine for playing Wa Shogi and other chess variants with piece drops.