Merge official-stockfish/master

bench: 4877370

diff --cc Readme.md
Simple merge

diff --cc src/Makefile
index bc452d1,016aafe..a40231d
--- 1/src/Makefile
--- 2/src/Makefile
+++ b/src/Makefile
@@@ -35,10 -35,14 +35,14 @@@ BINDIR = $(PREFIX)/bi
  ### Built-in benchmark for pgo-builds
  PGOBENCH = ./$(EXE) bench
  
- ### Object files
- OBJS = benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o \
-       material.o misc.o movegen.o movepick.o partner.o parser.o pawns.o piece.o position.o psqt.o \
-       search.o thread.o timeman.o tt.o uci.o ucioption.o variant.o xboard.o tune.o syzygy/tbprobe.o
+ ### Source and object files
+ SRCS = benchmark.cpp bitbase.cpp bitboard.cpp endgame.cpp evaluate.cpp main.cpp \
 -      material.cpp misc.cpp movegen.cpp movepick.cpp pawns.cpp position.cpp psqt.cpp \
 -      search.cpp thread.cpp timeman.cpp tt.cpp uci.cpp ucioption.cpp tune.cpp syzygy/tbprobe.cpp
++      material.cpp misc.cpp movegen.cpp movepick.cpp partner.cpp parser.cpp pawns.cpp piece.cpp position.cpp psqt.cpp \
++      search.cpp thread.cpp timeman.cpp tt.cpp uci.cpp ucioption.cpp variant.cpp xboard.cpp tune.cpp syzygy/tbprobe.cpp
+ 
+ OBJS = $(notdir $(SRCS:.cpp=.o))
+ 
+ VPATH = syzygy
  
  ### Establish the operating system name
  KERNEL = $(shell uname -s)

diff --cc src/evaluate.cpp
index 39a1c92,d972db5..f9bd82f
--- 1/src/evaluate.cpp
--- 2/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@@ -131,12 -126,9 +131,13 @@@ namespace 
      S(0, 0), S(10, 28), S(17, 33), S(15, 41), S(62, 72), S(168, 177), S(276, 260)
    };
  
 +  // KingProximity contains a penalty according to distance from king
 +  constexpr Score KingProximity = S(1, 3);
 +  constexpr Score EndgameKingProximity = S(0, 10);
 +
    // Assorted bonuses and penalties
    constexpr Score BishopPawns         = S(  3,  7);
+   constexpr Score BishopXRayPawns     = S(  4,  5);
    constexpr Score CorneredBishop      = S( 50, 50);
    constexpr Score FlankAttacks        = S(  8,  0);
    constexpr Score Hanging             = S( 69, 36);
@@@ -380,6 -319,9 +381,9 @@@
                  score -= BishopPawns * pos.pawns_on_same_color_squares(Us, s)
                                       * (!(attackedBy[Us][PAWN] & s) + popcount(blocked & CenterFiles));
  
+                 // Penalty for all enemy pawns x-rayed
 -                score -= BishopXRayPawns * popcount(PseudoAttacks[BISHOP][s] & pos.pieces(Them, PAWN));
++                score -= BishopXRayPawns * popcount(PseudoAttacks[Us][BISHOP][s] & pos.pieces(Them, PAWN));
+ 
                  // Bonus for bishop on a long diagonal which can "see" both center squares
                  if (more_than_one(attacks_bb<BISHOP>(s, pos.pieces(PAWN)) & Center))
                      score += LongDiagonalBishop;
@@@ -1133,9 -778,7 +1138,7 @@@
                  sf = 22 + 3 * pos.count<ALL_PIECES>(strongSide);
          }
          else
 -            sf = std::min(sf, 36 + 7 * pos.count<PAWN>(strongSide));
 +            sf = std::min(sf, 36 + 7 * (pos.count<PAWN>(strongSide) + pos.count<SOLDIER>(strongSide)));
- 
-         sf = std::max(0, sf - (pos.rule50_count() - 12) / 4);
      }
  
      return ScaleFactor(sf);
@@@ -1220,7 -855,8 +1223,8 @@@
          Trace::add(TOTAL, score);
      }
  
-     return  (pos.side_to_move() == WHITE ? v : -v) + Eval::tempo_value(pos); // Side to move point of view
+     // Side to move point of view
 -    return (pos.side_to_move() == WHITE ? v : -v) + Tempo;
++    return (pos.side_to_move() == WHITE ? v : -v) + Eval::tempo_value(pos);
    }
  
  } // namespace

diff --cc src/misc.cpp
Simple merge

diff --cc src/misc.h
Simple merge

diff --cc src/syzygy/tbprobe.cpp
Simple merge

diff --cc src/tt.cpp
Simple merge

diff --cc src/tt.h
index b05240b,bd723a8..0a682be
--- 1/src/tt.h
--- 2/src/tt.h
+++ b/src/tt.h
@@@ -69,13 -69,13 +69,13 @@@ class TranspositionTable 
  
    struct Cluster {
      TTEntry entry[ClusterSize];
 -    char padding[2]; // Pad to 32 bytes
 +    char padding[4]; // Pad to 64 bytes
    };
  
 -  static_assert(sizeof(Cluster) == 32, "Unexpected Cluster size");
 +  static_assert(sizeof(Cluster) == 64, "Unexpected Cluster size");
  
  public:
-  ~TranspositionTable() { free(mem); }
+  ~TranspositionTable() { aligned_ttmem_free(mem); }
    void new_search() { generation8 += 8; } // Lower 3 bits are used by PV flag and Bound
    TTEntry* probe(const Key key, bool& found) const;
    int hashfull() const;

diff --cc src/types.h
Simple merge