STC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 33502 W: 6498 L: 6223 D: 20781
http://tests.stockfishchess.org/tests/view/
578abb940ebc5972faa169e2
LTC:
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 50782 W: 7124 L: 6832 D: 36826
http://tests.stockfishchess.org/tests/view/
578b8e5d0ebc5972faa169fd
LTC: (Sanity test against latest master)
LLR: 2.95 (-2.94,2.94) [0.00,5.00]
Total: 32759 W: 4600 L: 4370 D: 23789
http://tests.stockfishchess.org/tests/view/
5798b7d30ebc591c761f5b72
bench:
6985912
P.S. Thanks @mstembera for rewriting my code to make it smp compatible. A BIG thank you!
void MovePicker::score<QUIETS>() {
const HistoryStats& history = pos.this_thread()->history;
+ const FromToStats& fromTo = pos.this_thread()->fromTo;
const CounterMoveStats* cm = (ss-1)->counterMoves;
const CounterMoveStats* fm = (ss-2)->counterMoves;
const CounterMoveStats* f2 = (ss-4)->counterMoves;
+ Color c = pos.side_to_move();
+
for (auto& m : *this)
m.value = history[pos.moved_piece(m)][to_sq(m)]
+ (cm ? (*cm)[pos.moved_piece(m)][to_sq(m)] : VALUE_ZERO)
+ (fm ? (*fm)[pos.moved_piece(m)][to_sq(m)] : VALUE_ZERO)
- + (f2 ? (*f2)[pos.moved_piece(m)][to_sq(m)] : VALUE_ZERO);
+ + (f2 ? (*f2)[pos.moved_piece(m)][to_sq(m)] : VALUE_ZERO)
+ + fromTo.get(c, m);
}
template<>
// by history value, then bad captures and quiet moves with a negative SEE ordered
// by SEE value.
const HistoryStats& history = pos.this_thread()->history;
+ const FromToStats& fromTo = pos.this_thread()->fromTo;
+ Color c = pos.side_to_move();
Value see;
for (auto& m : *this)
m.value = PieceValue[MG][pos.piece_on(to_sq(m))]
- Value(type_of(pos.moved_piece(m))) + HistoryStats::Max;
else
- m.value = history[pos.moved_piece(m)][to_sq(m)];
+ m.value = history[pos.moved_piece(m)][to_sq(m)] + fromTo.get(c, m);
}
typedef Stats<Value, true> CounterMoveStats;
typedef Stats<CounterMoveStats> CounterMoveHistoryStats;
+struct FromToStats {
+
+ Value get(Color c, Move m) const { return table[c][from_sq(m)][to_sq(m)]; }
+ void clear() { std::memset(table, 0, sizeof(table)); }
+
+ void update(Color c, Move m, Value v)
+ {
+ if (abs(int(v)) >= 324)
+ return;
+
+ Square f = from_sq(m);
+ Square t = to_sq(m);
+
+ table[c][f][t] -= table[c][f][t] * abs(int(v)) / 324;
+ table[c][f][t] += int(v) * 32;
+ }
+
+private:
+ Value table[COLOR_NB][SQUARE_NB][SQUARE_NB];
+};
/// MovePicker class is used to pick one pseudo legal move at a time from the
/// current position. The most important method is next_move(), which returns a
{
th->history.clear();
th->counterMoves.clear();
+ th->fromTo.clear();
}
Threads.main()->previousScore = VALUE_INFINITE;
Value val = thisThread->history[moved_piece][to_sq(move)]
+ (cmh ? (*cmh )[moved_piece][to_sq(move)] : VALUE_ZERO)
+ (fmh ? (*fmh )[moved_piece][to_sq(move)] : VALUE_ZERO)
- + (fmh2 ? (*fmh2)[moved_piece][to_sq(move)] : VALUE_ZERO);
+ + (fmh2 ? (*fmh2)[moved_piece][to_sq(move)] : VALUE_ZERO)
+ + thisThread->fromTo.get(~pos.side_to_move(), move);
// Increase reduction for cut nodes
if (cutNode)
ss->killers[1] = ss->killers[0];
ss->killers[0] = move;
}
-
+
+ Color c = pos.side_to_move();
Value bonus = Value((depth / ONE_PLY) * (depth / ONE_PLY) + 2 * depth / ONE_PLY - 2);
Square prevSq = to_sq((ss-1)->currentMove);
Thread* thisThread = pos.this_thread();
thisThread->history.update(pos.moved_piece(move), to_sq(move), bonus);
+ thisThread->fromTo.update(c, move, bonus);
if (cmh)
{
for (int i = 0; i < quietsCnt; ++i)
{
thisThread->history.update(pos.moved_piece(quiets[i]), to_sq(quiets[i]), -bonus);
+ thisThread->fromTo.update(c, quiets[i], -bonus);
if (cmh)
cmh->update(pos.moved_piece(quiets[i]), to_sq(quiets[i]), -bonus);
Depth rootDepth;
HistoryStats history;
MoveStats counterMoves;
+ FromToStats fromTo;
Depth completedDepth;
std::atomic_bool resetCalls;
};