From 0db4a1bee9a7e1172dbcd105bc9f68b8f4817f86 Mon Sep 17 00:00:00 2001
From: Kevin Lu <kevie.lu8@gmail.com>
Date: Thu, 31 Jul 2025 14:17:07 -0700
Subject: [PATCH] Remove completedDepth condition for SE

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 https://github.com/official-stockfish/Stockfish/pull/6221

functional at higher depths

Bench: 3002300
---
 AUTHORS        | 1 +
 src/search.cpp | 5 ++---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/AUTHORS b/AUTHORS
index e606e5a8d..804824d8c 100644
--- 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
index c81012625..b4569d9a5 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1112,9 +1112,8 @@ moves_loop:  // When in check, search starts here
         // (*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;