Remove completedDepth condition for SE

kevlu8 · vondele · commit 0db4a1bee9a7 · 2025-08-16T12:01:19.000+02:00
Just removing the term Passed STC: LLR: 3.27 (-2.94,2.94) <-1.75,0.25> Total: 179840 W: 47211 L: 47126 D: 85503 Ptnml(0-2): 567, 17929, 52879, 17942, 603 https://tests.stockfishchess.org/tests/view/688bdd88502b34dd5e7111ea Passed LTC: LLR: 3.26 (-2.94,2.94) <-1.75,0.25> Total: 150708 W: 38738 L: 38637 D: 73333 Ptnml(0-2): 79, 12922, 49262, 13001, 90 https://tests.stockfishchess.org/tests/view/688ce857f17748b4d23c8026 Passed VLTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 288312 W: 74104 L: 74152 D: 140056 Ptnml(0-2): 44, 26732, 90657, 26674, 49 https://tests.stockfishchess.org/tests/view/688ec4f57d68fe4f7f130ee3 closes official-stockfish#6221 functional at higher depths Bench: 3002300
diff --git a/AUTHORS b/AUTHORS
@@ -133,6 +133,7 @@ Justin Blanchard (UncombedCoconut)
 Kelly Wilson
 Ken Takusagawa
 Kenneth Lee (kennethlee33)
+kevlu8
 Kian E (KJE-98)
 kinderchocolate
 Kiran Panditrao (Krgp)
diff --git a/src/search.cpp b/src/search.cpp
@@ -1112,9 +1112,8 @@ Value Search::Worker::search(
         // (*Scaler) Generally, higher singularBeta (i.e closer to ttValue)
         // and lower extension margins scale well.
 
-        if (!rootNode && move == ttData.move && !excludedMove
-            && depth >= 6 - (completedDepth > 26) + ss->ttPv && is_valid(ttData.value)
-            && !is_decisive(ttData.value) && (ttData.bound & BOUND_LOWER)
+        if (!rootNode && move == ttData.move && !excludedMove && depth >= 6 + ss->ttPv
+            && is_valid(ttData.value) && !is_decisive(ttData.value) && (ttData.bound & BOUND_LOWER)
             && ttData.depth >= depth - 3)
         {
             Value singularBeta  = ttData.value - (56 + 79 * (ss->ttPv && !PvNode)) * depth / 58;
