- const Value BishopPairMidgameBonus = Value(100);
- const Value BishopPairEndgameBonus = Value(100);
-
- Key KNNKMaterialKey, KKNNMaterialKey;
-
- struct ScalingInfo
- {
- Color col;
- ScalingFunction* fun;
- };
-
- std::map<Key, EndgameEvaluationFunction*> EEFmap;
- std::map<Key, ScalingInfo> ESFmap;
-
- Lock EEFmapLock;
- Lock ESFmapLock;
-
- void add(Key k, EndgameEvaluationFunction* f) {
-
- EEFmap.insert(std::pair<Key, EndgameEvaluationFunction*>(k, f));
- }
-
- void add(Key k, Color c, ScalingFunction* f) {
-
- ScalingInfo s = {c, f};
- ESFmap.insert(std::pair<Key, ScalingInfo>(k, s));
- }
-
- // STL map are not guaranteed to be thread safe even
- // for read-access so we need this two helpers to access them.
- EndgameEvaluationFunction* getEEF(Key key) {
-
- EndgameEvaluationFunction* f = NULL;
-
- lock_grab(&EEFmapLock);
-
- if (EEFmap.find(key) != EEFmap.end())
- f = EEFmap[key];
-
- lock_release(&EEFmapLock);
- return f;
- }
-
- ScalingInfo getESF(Key key) {
-
- ScalingInfo si = {WHITE, NULL};
-
- lock_grab(&ESFmapLock);
-
- if (ESFmap.find(key) != ESFmap.end())
- si = ESFmap[key];
-
- lock_release(&ESFmapLock);
- return si;
- }
-
+ // Polynomial material balance parameters
+ const Value RedundantQueenPenalty = Value(320);
+ const Value RedundantRookPenalty = Value(554);
+ const int LinearCoefficients[6] = { 1617, -162, -1172, -190, 105, 26 };
+
+ const int QuadraticCoefficientsSameColor[][6] = {
+ { 7, 7, 7, 7, 7, 7 }, { 39, 2, 7, 7, 7, 7 }, { 35, 271, -4, 7, 7, 7 },
+ { 7, 25, 4, 7, 7, 7 }, { -27, -2, 46, 100, 56, 7 }, { 58, 29, 83, 148, -3, -25 } };
+
+ const int QuadraticCoefficientsOppositeColor[][6] = {
+ { 41, 41, 41, 41, 41, 41 }, { 37, 41, 41, 41, 41, 41 }, { 10, 62, 41, 41, 41, 41 },
+ { 57, 64, 39, 41, 41, 41 }, { 50, 40, 23, -22, 41, 41 }, { 106, 101, 3, 151, 171, 41 } };
+
+ // Named endgame evaluation and scaling functions, these
+ // are accessed direcly and not through the function maps.
+ EvaluationFunction<KmmKm> EvaluateKmmKm(WHITE);
+ EvaluationFunction<KXK> EvaluateKXK(WHITE), EvaluateKKX(BLACK);
+ ScalingFunction<KBPsK> ScaleKBPsK(WHITE), ScaleKKBPs(BLACK);
+ ScalingFunction<KQKRPs> ScaleKQKRPs(WHITE), ScaleKRPsKQ(BLACK);
+ ScalingFunction<KPsK> ScaleKPsK(WHITE), ScaleKKPs(BLACK);
+ ScalingFunction<KPKP> ScaleKPKPw(WHITE), ScaleKPKPb(BLACK);
+
+ typedef EndgameEvaluationFunctionBase EF;
+ typedef EndgameScalingFunctionBase SF;