Make imbalance table more clear

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 74851fb2058e7354da21f5ab0806404268e4878d..22a954ae8eaa2efd757d4df91552aa20693b3a2b 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -94,7 +94,7 @@ namespace {
   void id_loop(Position& pos);
   Value value_to_tt(Value v, int ply);
   Value value_from_tt(Value v, int ply);
-  void update_stats(Position& pos, Stack* ss, Move move, Depth depth, Move* quiets, int quietsCnt);
+  void update_stats(const Position& pos, Stack* ss, Move move, Depth depth, Move* quiets, int quietsCnt);
   string uci_pv(const Position& pos, int depth, Value alpha, Value beta);
 
   struct Skill {
@@ -885,7 +885,7 @@ moves_loop: // When in check and at SpNode search starts from here
 
           value = -search<NonPV, false>(pos, ss+1, -(alpha+1), -alpha, d, true);
 
-          // Research at intermediate depth if reduction is very high
+          // Re-search at intermediate depth if reduction is very high
           if (value > alpha && ss->reduction >= 4 * ONE_PLY)
           {
               Depth d2 = std::max(newDepth - 2 * ONE_PLY, ONE_PLY);
@@ -1267,7 +1267,7 @@ moves_loop: // When in check and at SpNode search starts from here
   // update_stats() updates killers, history, countermoves and followupmoves stats after a fail-high
   // of a quiet move.
 
-  void update_stats(Position& pos, Stack* ss, Move move, Depth depth, Move* quiets, int quietsCnt) {
+  void update_stats(const Position& pos, Stack* ss, Move move, Depth depth, Move* quiets, int quietsCnt) {
 
     if (ss->killers[0] != move)
     {