From e8021f3938179e38c24b995777213fd6d629192a Mon Sep 17 00:00:00 2001
From: Scott Gasch <scott@gasch.org>
Date: Sun, 30 Aug 2026 19:08:01 -0700
Subject: Oops, a couple of issues with that last one.

---
 src/debug_smoke_test.sh |  4 ++--
 src/run_tests.sh        | 44 ++++++++++++++++++++++++++++++++++++++++++++
 src/search.c            | 24 +++++++++++++-----------
 src/searchsup.c         |  2 +-
 4 files changed, 60 insertions(+), 14 deletions(-)
 create mode 100755 src/run_tests.sh

(limited to 'src')

diff --git a/src/debug_smoke_test.sh b/src/debug_smoke_test.sh
index 1d2ba0e..d8ef228 100755
--- a/src/debug_smoke_test.sh
+++ b/src/debug_smoke_test.sh
@@ -14,7 +14,7 @@
 # Defaults: ./_typhoon, sd 4, 10 positions
 
 BIN="${1:-./_typhoon}"
-DEPTH="${2:-4}"
+DEPTH="${2:-5}"
 COUNT="${3:-10}"
 SUITE=../tests/ecm.ep_
 LOGDIR=/tmp/typhoon/smoke_test
@@ -66,7 +66,7 @@ echo "    FENs chosen (reproduce a failure with: script $SAMPLE_SAVED):"
 grep '^setboard' "$SAMPLE_SAVED" | sed 's/^setboard /      /'
 
 START=$(date +%s)
-"$BIN" --cpus 1 --hash 64m --logfile "$LOG" \
+"$BIN" --cpus 4 --hash 64m --logfile "$LOG" \
     --batch --command "force; book name /nonexistent.book.bin; sd $DEPTH; script $SAMPLE" \
     > "$OUT" 2>&1
 STATUS=$?
diff --git a/src/run_tests.sh b/src/run_tests.sh
new file mode 100755
index 0000000..aaa1ba1
--- /dev/null
+++ b/src/run_tests.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+set -e
+
+LOGDIR="/tmp/typhoon/manual"
+HEAD_LOGDIR="../head_reference/logs"
+TESTS="../tests"
+
+/bin/rm -rf "${LOGDIR}/*"
+
+clear
+echo -n "Launching "
+for suite in ecm_ringers ecm_confident_quick ecm_hard_quick; do
+    echo -n "$suite@sd10 "
+   ./typhoon \
+       --cpus 1 \
+       --hash 256m \
+       --logfile "$LOGDIR/sd10_${suite}.log" \
+       --batch \
+       --command "force; book name /nonexistent.book.bin; sd 10; script $TESTS/${suite}.ep_" \
+       > "$LOGDIR/sd10_${suite}.out" 2>&1 &
+   echo -n "$suite@sn5M "
+   ./typhoon \
+       --cpus 1 \
+       --hash 256m \
+       --logfile "$LOGDIR/sn5m_${suite}.log" \
+       --batch \
+       --command "force; book name /nonexistent.book.bin; sn 5000000; script $TESTS/${suite}.ep_" \
+       > "$LOGDIR/sn5m_${suite}.out" 2>&1 &
+done
+echo
+echo
+wait
+
+for suite in ecm_ringers ecm_confident_quick ecm_hard_quick; do
+    echo "----[ $suite sd=10 ]----"
+    tail -32 $LOGDIR/sd10_${suite}.out | head -3 | prefix "CANDIDATE>"
+    tail -32 $HEAD_LOGDIR/sd10_${suite}.out | head -3 | prefix "     HEAD>"
+    echo
+    echo "----[ $suite sn=5M ]----"
+    tail -32 $LOGDIR/sn5m_${suite}.out | head -3 | prefix "CANDIDATE>"
+    tail -32 $HEAD_LOGDIR/sn5m_${suite}.out | head -3 | prefix "     HEAD>"
+    echo
+done
diff --git a/src/search.c b/src/search.c
index 4a153aa..6352f97 100755
--- a/src/search.c
+++ b/src/search.c
@@ -526,18 +526,20 @@ Search(IN SEARCHER_THREAD_CONTEXT *ctx,
                     (ctx->sPlyInfo[ctx->uPly - 2].iExtensionAmount <= 0))
                 {
                     ASSERT(uDepth >= THREE_QUARTERS_PLY);
-                    if ((uDepth <= ONE_PLY + THREE_QUARTERS_PLY) &&
-                        (iEval + VALUE_KNIGHT + iImprovement <= iAlpha))
-                    {
-                        uFutilityMargin = (iAlpha - iEval) / 2;
-                        ASSERT(uFutilityMargin);
-                    }
-                    else if ((uDepth > ONE_PLY + THREE_QUARTERS_PLY) &&
-                        (uDepth <= TWO_PLY + THREE_QUARTERS_PLY) &&
-                        (iEval + VALUE_ROOK + iImprovement <= iAlpha))
+
+                    if (iEval < iAlpha)
                     {
-                        uFutilityMargin = (iAlpha - iEval) / 2;
-                        ASSERT(uFutilityMargin);
+                        if ((uDepth <= ONE_PLY + THREE_QUARTERS_PLY) &&
+                            (iEval + VALUE_KNIGHT + iImprovement <= iAlpha))
+                        {
+                            uFutilityMargin = (iAlpha - iEval) / 2;
+                        }
+                        else if ((uDepth > ONE_PLY + THREE_QUARTERS_PLY) &&
+                                 (uDepth <= TWO_PLY + THREE_QUARTERS_PLY) &&
+                                 (iEval + VALUE_ROOK + iImprovement <= iAlpha))
+                        {
+                            uFutilityMargin = (iAlpha - iEval) / 2;
+                        }
                     }
                 }
                 uStage++;
diff --git a/src/searchsup.c b/src/searchsup.c
index 9ad4303..172413f 100644
--- a/src/searchsup.c
+++ b/src/searchsup.c
@@ -1112,7 +1112,7 @@ FLAG WeShouldTryNullmovePruning(SEARCHER_THREAD_CONTEXT *ctx,
 
     ASSERT(IS_VALID_SCORE(iAlpha) && IS_VALID_SCORE(iBeta));
     ASSERT(iAlpha < iBeta);
-    ASSERT(IS_VALID_SCORE(iRoughEval));
+    ASSERT(IS_VALID_SCORE(iEval));
     ASSERT(uNullDepth < MAX_PLY_PER_SEARCH * ONE_PLY);
 
     if ((FALSE == pf->fAvoidNullmove) &&
-- 
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