as it seems not to bring any strength and thus is no longer needed.
Tests for updating elo estimates:
https://tests.stockfishchess.org/tests/view/
6099ff123a33eb67a844f789
https://tests.stockfishchess.org/tests/view/
60953e6695e7f1852abd305b
Individual simplification tests:
https://tests.stockfishchess.org/tests/view/
6098cfc73a33eb67a844f6a1
https://tests.stockfishchess.org/tests/view/
6095539495e7f1852abd308b
LTC:
LLR: 2.93 (-2.94,2.94) <-2.50,0.50>
Total: 96984 W: 3624 L: 3608 D: 89752
Ptnml(0-2): 45, 3222, 41939, 3244, 42
https://tests.stockfishchess.org/tests/view/
6099921a3a33eb67a844f74f
closes https://github.com/official-stockfish/Stockfish/pull/3458
bench:
3836428
&& thisThread->bestMoveChanges <= 2)
r++;
&& thisThread->bestMoveChanges <= 2)
r++;
- // More reductions for late moves if position was not in previous PV
- if ( moveCountPruning
- && !formerPv)
- r++;
-
// Decrease reduction if opponent's move count is high (~5 Elo)
if ((ss-1)->moveCount > 13)
r--;
// Decrease reduction if opponent's move count is high (~5 Elo)
if ((ss-1)->moveCount > 13)
r--;
- // Decrease reduction if ttMove has been singularly extended (~3 Elo)
+ // Decrease reduction if ttMove has been singularly extended (~1 Elo)
if (singularQuietLMR)
r--;
if (singularQuietLMR)
r--;
- // Increase reduction if ttMove is a capture (~5 Elo)
+ // Increase reduction if ttMove is a capture (~3 Elo)
- // Decrease reduction for moves that escape a capture. Filter out
- // castling moves, because they are coded as "king captures rook" and
- // hence break reverse_move() (~2 Elo)
- else if ( type_of(move) == NORMAL
- && !pos.see_ge(reverse_move(move)))
- r -= 2 + ss->ttPv - (type_of(movedPiece) == PAWN);
-
ss->statScore = thisThread->mainHistory[us][from_to(move)]
+ (*contHist[0])[movedPiece][to_sq(move)]
+ (*contHist[1])[movedPiece][to_sq(move)]
ss->statScore = thisThread->mainHistory[us][from_to(move)]
+ (*contHist[0])[movedPiece][to_sq(move)]
+ (*contHist[1])[movedPiece][to_sq(move)]