Another set of tuned values after one million games
Another set of tuned values, obtained by a long session of one million games. STC: LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 15810 W: 3687 L: 3458 D: 8665 http://tests.stockfishchess.org/tests/view/5b2d32f60ebc5902b2e55d9e LTC: LLR: 2.95 (-2.94,2.94) [0.00,4.00] Total: 102118 W: 18146 L: 17651 D: 66321 http://tests.stockfishchess.org/tests/view/5b2d372c0ebc5902b2e55e0a Closes https://github.com/official-stockfish/Stockfish/pull/1658 Bench: 4557946pull/1660/head
candirufish
Stéphane Nicolet
parent
34321fcc2d
commit
efd4ca27c4
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@ -142,24 +142,24 @@ namespace {
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// ThreatByKing[on one/on many] contains bonuses for king attacks on
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// pawns or pieces which are not pawn-defended.
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constexpr Score ThreatByKing[] = { S(25, 57), S(4, 139) };
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constexpr Score ThreatByKing[] = { S(30, 62), S(-9, 160) };
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// PassedRank[Rank] contains a bonus according to the rank of a passed pawn
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constexpr Score PassedRank[RANK_NB] = {
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S(0, 0), S(7, 10), S(7, 26), S(14, 31), S(42, 63), S(178, 167), S(279, 244)
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S(0, 0), S(4, 17), S(7, 20), S(14, 36), S(42, 62), S(165, 171), S(279, 252)
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};
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// PassedFile[File] contains a bonus according to the file of a passed pawn
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constexpr Score PassedFile[FILE_NB] = {
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S( 17, 6), S(-4, 7), S( 2,-12), S(-17,-14),
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S(-17,-14), S( 2,-12), S(-4, 7), S( 17, 6)
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S( 11, 14), S( 0, -5), S(-2, -8), S(-25,-13),
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S(-25,-13), S(-2, -8), S( 0, -5), S( 11, 14)
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};
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// PassedDanger[Rank] contains a term to weight the passed score
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constexpr int PassedDanger[RANK_NB] = { 0, 0, 0, 3, 6, 12, 21 };
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constexpr int PassedDanger[RANK_NB] = { 0, 0, 0, 2, 7, 12, 19 };
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// KingProtector[PieceType-2] contains a penalty according to distance from king
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constexpr Score KingProtector[] = { S(3, 5), S(5, 3), S(3, 0), S(0, -2) };
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constexpr Score KingProtector[] = { S(4, 6), S(6, 3), S(1, 0), S(0, -2) };
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// Assorted bonuses and penalties
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constexpr Score BishopPawns = S( 3, 5);
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@ -167,7 +167,7 @@ namespace {
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constexpr Score Connectivity = S( 3, 1);
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constexpr Score CorneredBishop = S( 50, 50);
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constexpr Score Hanging = S( 52, 30);
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constexpr Score HinderPassedPawn = S( 5, 2);
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constexpr Score HinderPassedPawn = S( 5, -1);
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constexpr Score KnightOnQueen = S( 21, 11);
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constexpr Score LongDiagonalBishop = S( 22, 0);
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constexpr Score MinorBehindPawn = S( 16, 0);
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@ -177,10 +177,10 @@ namespace {
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constexpr Score SliderOnQueen = S( 42, 21);
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constexpr Score ThreatByPawnPush = S( 49, 30);
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constexpr Score ThreatByRank = S( 16, 3);
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constexpr Score ThreatBySafePawn = S(186,140);
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constexpr Score ThreatBySafePawn = S(165,133);
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constexpr Score TrappedRook = S( 92, 0);
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constexpr Score WeakQueen = S( 50, 10);
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constexpr Score WeakUnopposedPawn = S( 14, 19);
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constexpr Score WeakUnopposedPawn = S( 5, 26);
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#undef S
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@ -428,7 +428,7 @@ namespace {
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// Main king safety evaluation
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if (kingAttackersCount[Them] > 1 - pos.count<QUEEN>(Them))
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{
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int kingDanger = -mg_value(score);
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int kingDanger = 0;
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unsafeChecks = 0;
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// Attacked squares defended at most once by our queen or king
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@ -475,10 +475,11 @@ namespace {
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kingDanger += kingAttackersCount[Them] * kingAttackersWeight[Them]
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+ 64 * kingAttacksCount[Them]
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+ 182 * popcount(kingRing[Us] & weak)
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+ 128 * popcount(pos.blockers_for_king(Us) | unsafeChecks)
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- 857 * !pos.count<QUEEN>(Them)
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+ 31 ;
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+ 183 * popcount(kingRing[Us] & weak)
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+ 122 * popcount(pos.blockers_for_king(Us) | unsafeChecks)
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- 860 * !pos.count<QUEEN>(Them)
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- 7 * mg_value(score) / 8
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+ 17 ;
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// Transform the kingDanger units into a Score, and subtract it from the evaluation
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if (kingDanger > 0)
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@ -32,9 +32,9 @@ namespace {
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#define S(mg, eg) make_score(mg, eg)
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// Pawn penalties
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constexpr Score Isolated = S( 6, 16);
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constexpr Score Backward = S(15, 21);
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constexpr Score Doubled = S( 8, 44);
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constexpr Score Isolated = S( 4, 20);
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constexpr Score Backward = S(21, 22);
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constexpr Score Doubled = S(12, 54);
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// Connected pawn bonus by opposed, phalanx, #support and rank
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Score Connected[2][2][3][RANK_NB];
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@ -42,25 +42,25 @@ namespace {
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// Strength of pawn shelter for our king by [distance from edge][rank].
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// RANK_1 = 0 is used for files where we have no pawn, or pawn is behind our king.
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constexpr Value ShelterStrength[int(FILE_NB) / 2][RANK_NB] = {
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{ V( 28), V(79), V( 75), V( 46), V( 14), V( 31), V(-14) },
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{ V(-48), V(50), V( 29), V(-21), V(-41), V(-23), V(-45) },
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{ V(-25), V(50), V( 17), V(-33), V( -5), V( 9), V(-35) },
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{ V(-29), V(57), V(-25), V(-48), V( -4), V(-46), V(-64) }
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{ V( 16), V(82), V( 83), V( 47), V( 19), V( 44), V( 4) },
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{ V(-51), V(56), V( 33), V(-58), V(-57), V(-50), V(-39) },
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{ V(-20), V(71), V( 16), V(-10), V( 13), V( 19), V(-30) },
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{ V(-29), V(12), V(-21), V(-40), V(-15), V(-77), V(-91) }
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};
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// Danger of enemy pawns moving toward our king by [distance from edge][rank].
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// RANK_1 = 0 is used for files where the enemy has no pawn, or their pawn
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// is behind our king.
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constexpr Value UnblockedStorm[int(FILE_NB) / 2][RANK_NB] = {
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{ V( 34), V( 58), V(113), V( 61), V(37), V( 24), V( 21) },
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{ V( 23), V( 46), V( 93), V( 10), V( 2), V(-20), V( 6) },
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{ V( -6), V( 22), V(106), V( 28), V( 6), V(-33), V( -1) },
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{ V(-17), V( 33), V( 71), V( 14), V(-9), V(-21), V(-16) }
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{ V(54), V( 48), V( 99), V(91), V(42), V( 32), V( 31) },
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{ V(34), V( 27), V(105), V(38), V(32), V(-19), V( 3) },
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{ V(-4), V( 28), V( 87), V(18), V(-3), V(-14), V(-11) },
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{ V(-5), V( 22), V( 75), V(14), V( 2), V( -5), V(-19) }
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};
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// Danger of blocked enemy pawns storming our king, by rank
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constexpr Value BlockedStorm[RANK_NB] =
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{ V(0), V(0), V( 58), V(-13), V(-22), V(-3), V(-5) };
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{ V(0), V(0), V( 81), V(-9), V(-5), V(-1), V(26) };
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#undef S
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#undef V
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