Guard less moves from lmr (#318)

Elo | 3.02 +- 2.86 (95%) SPRT | 8.0+0.08s Threads=1 Hash=16MB LLR | 2.91 (-2.25, 2.89) [0.00, 3.00] Games | N: 26142 W: 6172 L: 5945 D: 14025 Penta | [66, 2930, 6879, 3103, 93] Bench: 6419722
PGG106 · Jan 21, 2024 · 0e1f835 · 0e1f835
1 parent 777d66c
commit 0e1f835
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -609,7 +609,7 @@ int Negamax(int alpha, int beta, int depth, const bool cutNode, S_ThreadData* td
         info->nodes++;
         uint64_t nodesBeforeSearch = info->nodes;
         // Conditions to consider LMR. Calculate how much we should reduce the search depth.
-        if (movesSearched >= 2 + 2 * pvNode && depth >= 3 && (isQuiet || !ttPv)) {
+        if (movesSearched >= 1 + pvNode && depth >= 3 && (isQuiet || !ttPv)) {
 
             // Get base reduction value
             int depthReduction = reductions[isQuiet][depth][movesSearched];

diff --git a/src/types.h b/src/types.h
@@ -2,7 +2,7 @@
 
 #include <cstdint>
 
-#define NAME "Alexandria-5.1.23"
+#define NAME "Alexandria-5.1.24"
 
 // define bitboard data type
 using Bitboard = uint64_t;