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Chess engine for Android: Peacekeeper 1.70

on


Peacekeeper - UCI engine
Author: Kyle Zhang  Rating CEDR=2327

v.1.70:
This release includes many small tweaks and bugfixes to perfect HCE (hand-crafted evaluation). Some of the large changes include:
Updating bestmove on aspiration fail-high
Adjusting time control
Making negamax fail-soft (was a bug)
Adding LMP
FRC (Fischer Random Chess) and DFRC have also been implemented.

This release is 119 elo stronger in selfplay, and 104 elo stronger in a gauntlet against other opponents of similar strength.

ELO   | 119.11 +- 12.67 (95%)
CONF  | 5.0+0.05s Threads=1 Hash=8MB
GAMES | N: 2000 W: 977 L: 317 D: 706
Based on the strength gains, v1.70 should have a blitz elo of about 3110, and LTC elo of 3030.


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