Increase NMP reduction (#121)

ELO | 19.08 +- 9.45 (95%) SPRT | 25.0+0.20s Threads=1 Hash=16MB LLR | 2.96 (-2.94, 2.94) [-1.00, 4.00] GAMES | N: 2680 W: 764 L: 617 D: 1299 Bench: 7743157
Aryan1508 · Jul 6, 2021 · 084cca1 · 084cca1
1 parent e862c8c
commit 084cca1
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Showing 2 changed files with 2 additions and 2 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -174,7 +174,7 @@ namespace
 
         if (!pv_node && !in_check && depth >= 4 && !at_root && do_null && position.should_do_null())
         {
-            int R = std::max(4, 3 + depth / 5);
+            int R = std::max(4, 3 + depth / 3);
 
             position.apply_null_move(search.stats.ply);
             int score = -pvs(search, depth - R, -beta, -beta + 1, false).score;

diff --git a/src/uci.cpp b/src/uci.cpp
@@ -27,7 +27,7 @@
 #include "polyglot.h"
 #include <cstring>
 
-const char *version = "7.38";
+const char *version = "7.39";
 
 namespace
 {