this should scale like crap

bench 407740
official-stockfish · Jan 11, 2025 · e07d877 · e07d877
1 parent c7e7b4e
commit e07d877
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/search.cpp b/src/search.cpp
@@ -838,7 +838,7 @@ Value Search::Worker::search(
     // Step 10. Internal iterative reductions (~9 Elo)
     // For PV nodes without a ttMove, we decrease depth.
     if (PvNode && !ttData.move)
-        depth -= 3;
+        depth -= 5;
 
     // Use qsearch if depth <= 0
     if (depth <= 0)
@@ -1338,8 +1338,8 @@ Value Search::Worker::search(
                 else
                 {
                     // Reduce other moves if we have found at least one score improvement (~2 Elo)
-                    if (depth > 2 && depth < 14 && !is_decisive(value))
-                        depth -= 2;
+                    if (depth < 14 && !is_decisive(value))
+                        depth = std::max(1, depth - 5);
 
                     assert(depth > 0);
                     alpha = value;  // Update alpha! Always alpha < beta