X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=9562bf8640d4e8b04772d0e915281107e6218f97;hp=84f9bb23f0e01925be290646e80f1e1390c15275;hb=ddd4224640e04463c62b5896660f6f6abe4cc1a5;hpb=71e0b5385e2717679a57c6b77d8c7ac5fff3b89f

diff --git a/src/search.cpp b/src/search.cpp
index 84f9bb23..9562bf86 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -158,7 +158,7 @@ namespace {
   void update_continuation_histories(Stack* ss, Piece pc, Square to, int bonus);
   void update_quiet_stats(const Position& pos, Stack* ss, Move move, int bonus);
   void update_all_stats(const Position& pos, Stack* ss, Move bestMove, Value bestValue, Value beta, Square prevSq,
-                        Move* quietsSearched, int quietCount, Move* capturesSearched, int captureCount, Depth depth, bool pastPV);
+                        Move* quietsSearched, int quietCount, Move* capturesSearched, int captureCount, Depth depth);
 
   // perft() is our utility to verify move generation. All the leaf nodes up
   // to the given depth are generated and counted, and the sum is returned.
@@ -713,7 +713,7 @@ namespace {
             if (ttValue >= beta)
             {
                 if (!pos.capture_or_promotion(ttMove))
-                    update_quiet_stats(pos, ss, ttMove, stat_bonus(depth + (!PvNode && ttPv)));
+                    update_quiet_stats(pos, ss, ttMove, stat_bonus(depth));
 
                 // Extra penalty for early quiet moves of the previous ply
                 if ((ss-1)->moveCount <= 2 && !priorCapture)
@@ -722,7 +722,7 @@ namespace {
             // Penalty for a quiet ttMove that fails low
             else if (!pos.capture_or_promotion(ttMove))
             {
-                int penalty = -stat_bonus(depth + (!PvNode && ttPv));
+                int penalty = -stat_bonus(depth);
                 thisThread->mainHistory[us][from_to(ttMove)] << penalty;
                 update_continuation_histories(ss, pos.moved_piece(ttMove), to_sq(ttMove), penalty);
             }
@@ -1028,11 +1028,7 @@ moves_loop: // When in check, search starts from here
                   continue;
           }
           else if (!pos.see_ge(move, Value(-194) * depth)) // (~25 Elo)
-          {
-              if (captureOrPromotion && captureCount < 32)
-                  capturesSearched[captureCount++] = move;
               continue;
-          }
       }
 
       // Step 14. Extensions (~75 Elo)
@@ -1119,7 +1115,7 @@ moves_loop: // When in check, search starts from here
       // Step 16. Reduced depth search (LMR, ~200 Elo). If the move fails high it will be
       // re-searched at full depth.
       if (    depth >= 3
-          &&  moveCount > 1 + rootNode + (rootNode && bestValue < alpha)
+          &&  moveCount > 1 + 2 * rootNode
           && (!rootNode || thisThread->best_move_count(move) == 0)
           && (  !captureOrPromotion
               || moveCountPruning
@@ -1326,7 +1322,7 @@ moves_loop: // When in check, search starts from here
 
     else if (bestMove)
         update_all_stats(pos, ss, bestMove, bestValue, beta, prevSq,
-                         quietsSearched, quietCount, capturesSearched, captureCount, depth, (!PvNode && ttPv));
+                         quietsSearched, quietCount, capturesSearched, captureCount, depth);
 
     // Bonus for prior countermove that caused the fail low
     else if (   (depth >= 3 || PvNode)
@@ -1602,7 +1598,7 @@ moves_loop: // When in check, search starts from here
   // update_all_stats() updates stats at the end of search() when a bestMove is found
 
   void update_all_stats(const Position& pos, Stack* ss, Move bestMove, Value bestValue, Value beta, Square prevSq,
-                        Move* quietsSearched, int quietCount, Move* capturesSearched, int captureCount, Depth depth, bool pastPV) {
+                        Move* quietsSearched, int quietCount, Move* capturesSearched, int captureCount, Depth depth) {
 
     int bonus1, bonus2;
     Color us = pos.side_to_move();
@@ -1612,8 +1608,8 @@ moves_loop: // When in check, search starts from here
     PieceType captured = type_of(pos.piece_on(to_sq(bestMove)));
 
     bonus1 = stat_bonus(depth + 1);
-    bonus2 = pastPV || bestValue > beta + PawnValueMg ? bonus1               // larger bonus
-                                                      : stat_bonus(depth);   // smaller bonus
+    bonus2 = bestValue > beta + PawnValueMg ? bonus1               // larger bonus
+                                            : stat_bonus(depth);   // smaller bonus
 
     if (!pos.capture_or_promotion(bestMove))
     {