X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=e42b4f387ccafc533952586f863a221a5ddca908;hp=eb5719bdad01326d9d6cdbebf44afc3c9bdf32c7;hb=54253bcce69a0ebc3e6bc4c35dfa76f8ff46521e;hpb=1fdf1f1ff5800bd8b1b1c33fc281b9731d40583d

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index eb5719bd..e42b4f38 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -449,14 +449,13 @@ namespace {
                  + 148 * popcount(unsafeChecks)
                  +  98 * popcount(pos.blockers_for_king(Us))
                  +  69 * kingAttacksCount[Them]
-                 +   4 * (kingFlankAttack - kingFlankDefense)
                  +   3 * kingFlankAttack * kingFlankAttack / 8
                  +       mg_value(mobility[Them] - mobility[Us])
                  - 873 * !pos.count<QUEEN>(Them)
                  - 100 * bool(attackedBy[Us][KNIGHT] & attackedBy[Us][KING])
-                 -  35 * bool(attackedBy[Us][BISHOP] & attackedBy[Us][KING])
                  -   6 * mg_value(score) / 8
-                 -   7;
+                 -   4 * kingFlankDefense
+                 +  37;
 
     // Transform the kingDanger units into a Score, and subtract it from the evaluation
     if (kingDanger > 100)
@@ -848,6 +847,9 @@ Value Eval::evaluate(const Position& pos) {
 
 std::string Eval::trace(const Position& pos) {
 
+  if (pos.checkers())
+      return "Total evaluation: none (in check)";
+
   std::memset(scores, 0, sizeof(scores));
 
   pos.this_thread()->contempt = SCORE_ZERO; // Reset any dynamic contempt