First check threshold in space evaluation

[stockfish] / src / material.cpp

diff --git a/src/material.cpp b/src/material.cpp
index 921e3007d0733788de389a676da524919ab06016..64a5bff033f9e7579fa33c9c94c3ea3f9dec0b22 100644 (file)
--- a/src/material.cpp
+++ b/src/material.cpp
@@ -152,7 +152,7 @@ Entry* probe(const Position& pos) {
 
   // OK, we didn't find any special evaluation function for the current material
   // configuration. Is there a suitable specialized scaling function?
-  EndgameBase<ScaleFactor>* sf;
+  const EndgameBase<ScaleFactor>* sf;
 
   if ((sf = pos.this_thread()->endgames.probe<ScaleFactor>(key)) != nullptr)
   {
@@ -206,12 +206,6 @@ Entry* probe(const Position& pos) {
       e->factor[BLACK] = uint8_t(npm_b <  RookValueMg   ? SCALE_FACTOR_DRAW :
                                  npm_w <= BishopValueMg ? 4 : 14);
 
-  if (pos.count<PAWN>(WHITE) == 1 && npm_w - npm_b <= BishopValueMg)
-      e->factor[WHITE] = (uint8_t) SCALE_FACTOR_ONEPAWN;
-
-  if (pos.count<PAWN>(BLACK) == 1 && npm_b - npm_w <= BishopValueMg)
-      e->factor[BLACK] = (uint8_t) SCALE_FACTOR_ONEPAWN;
-
   // Evaluate the material imbalance. We use PIECE_TYPE_NONE as a place holder
   // for the bishop pair "extended piece", which allows us to be more flexible
   // in defining bishop pair bonuses.