X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovepick.cpp;h=0859d772993200007c960cb8198dfae7ac7cfc26;hp=9002c64c41b09b0944a7cc634721b28a805bacdc;hb=a273b6ef8c899f546cf585ace584a1b498c04144;hpb=89723339d93c87f52e148080d5b1dc101ee76685

diff --git a/src/movepick.cpp b/src/movepick.cpp
index 9002c64c..0859d772 100644
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -68,8 +68,8 @@ namespace {
 /// ordering is at the current node.
 
 MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats& h,
-                       const CounterMoveStats& cmh, Move cm, Search::Stack* s)
-           : pos(p), history(h), counterMoveHistory(&cmh), ss(s), countermove(cm), depth(d) {
+                       const CounterMoveStats& cmh, const CounterMoveStats& fmh, Move cm, Search::Stack* s)
+           : pos(p), history(h), counterMoveHistory(&cmh), followupMoveHistory(&fmh), ss(s), countermove(cm), depth(d) {
 
   assert(d > DEPTH_ZERO);
 
@@ -80,7 +80,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const HistoryStats&
 
 MovePicker::MovePicker(const Position& p, Move ttm, Depth d,
                        const HistoryStats& h, Square s)
-           : pos(p), history(h), counterMoveHistory(nullptr) {
+           : pos(p), history(h), counterMoveHistory(nullptr), followupMoveHistory(nullptr) {
 
   assert(d <= DEPTH_ZERO);
 
@@ -105,7 +105,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d,
 }
 
 MovePicker::MovePicker(const Position& p, Move ttm, const HistoryStats& h, Value th)
-           : pos(p), history(h), counterMoveHistory(nullptr), threshold(th) {
+           : pos(p), history(h), counterMoveHistory(nullptr), followupMoveHistory(nullptr), threshold(th) {
 
   assert(!pos.checkers());
 
@@ -142,7 +142,8 @@ void MovePicker::score<QUIETS>() {
 
   for (auto& m : *this)
       m.value =  history[pos.moved_piece(m)][to_sq(m)]
-               + (*counterMoveHistory)[pos.moved_piece(m)][to_sq(m)];
+               + (*counterMoveHistory)[pos.moved_piece(m)][to_sq(m)]
+               + (*followupMoveHistory)[pos.moved_piece(m)][to_sq(m)];
 }
 
 template<>