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Big King Safety tuning

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All king safety related terms (shelterweakness, stormdanger,
attackunits, ..) was tuned together. Additionally for attack units a
finer granularity (factor 4) is used.

STC
ELO: 9.22 +-3.1 (95%) LOS: 100.0%
Total: 19514 W: 4340 L: 3822 D: 11352

LTC
LLR: 2.96 (-2.94,2.94) [0.00,6.00]
Total: 6399 W: 1192 L: 1056 D: 4151

Bench: 8224782

Resolves #184
This commit is contained in:
Stefan Geschwentner
2015-01-03 03:31:33 +08:00
committed by Gary Linscott
parent 4c9b423161
commit 25b492ab58
2 changed files with 36 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
src/pawns.cpp
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@@ -62,33 +62,33 @@ namespace {
// Weakness of our pawn shelter in front of the king by [distance from edge][rank]
const Value ShelterWeakness[][RANK_NB] = {
{ V(101), V(10), V(24), V(68), V(90), V( 95), V(102) },
{ V(105), V( 1), V(30), V(76), V(95), V(100), V(105) },
{ V( 99), V( 0), V(32), V(72), V(92), V(101), V(100) },
{ V( 94), V( 1), V(31), V(68), V(89), V( 98), V(106) } };
{ V(100), V(13), V(24), V(64), V(89), V( 93), V(104) },
{ V(110), V( 1), V(29), V(75), V(96), V(102), V(107) },
{ V(102), V( 0), V(39), V(74), V(88), V(101), V( 98) },
{ V( 88), V( 4), V(33), V(67), V(92), V( 94), V(107) } };
// Danger of enemy pawns moving toward our king by [type][distance from edge][rank]
const Value StormDanger[][4][RANK_NB] = {
{ { V( 0), V( 61), V( 128), V(47), V(27) },
{ V( 0), V( 66), V( 131), V(49), V(27) },
{ V( 0), V( 62), V( 126), V(52), V(23) },
{ V( 0), V( 63), V( 128), V(52), V(26) } },
{ { V(25), V( 33), V( 95), V(39), V(21) },
{ V(24), V( 33), V( 97), V(42), V(22) },
{ V(24), V( 33), V( 93), V(35), V(23) },
{ V(26), V( 27), V( 96), V(37), V(22) } },
{ { V( 0), V( 0), V( 80), V(14), V( 8) },
{ V( 0), V( 0), V( 163), V(28), V(12) },
{ V( 0), V( 0), V( 163), V(25), V(15) },
{ V( 0), V( 0), V( 161), V(24), V(14) } },
{ { V( 0), V(-300), V(-300), V(54), V(23) },
{ V( 0), V( 67), V( 128), V(46), V(24) },
{ V( 0), V( 64), V( 130), V(50), V(29) },
{ V( 0), V( 63), V( 127), V(51), V(24) } } };
{ { V( 0), V( 63), V( 128), V(43), V(27) },
{ V( 0), V( 62), V( 131), V(44), V(26) },
{ V( 0), V( 59), V( 121), V(50), V(28) },
{ V( 0), V( 62), V( 127), V(54), V(28) } },
{ { V(24), V( 40), V( 93), V(42), V(22) },
{ V(24), V( 28), V( 101), V(38), V(20) },
{ V(24), V( 32), V( 95), V(36), V(23) },
{ V(27), V( 24), V( 99), V(36), V(24) } },
{ { V( 0), V( 0), V( 81), V(16), V( 6) },
{ V( 0), V( 0), V( 165), V(29), V( 9) },
{ V( 0), V( 0), V( 163), V(23), V(12) },
{ V( 0), V( 0), V( 161), V(28), V(13) } },
{ { V( 0), V(-296), V(-299), V(55), V(25) },
{ V( 0), V( 67), V( 131), V(46), V(21) },
{ V( 0), V( 65), V( 135), V(50), V(31) },
{ V( 0), V( 62), V( 128), V(51), V(24) } } };
// Max bonus for king safety. Corresponds to start position with all the pawns
// in front of the king and no enemy pawn on the horizon.
const Value MaxSafetyBonus = V(261);
const Value MaxSafetyBonus = V(257);
#undef S
#undef V