From 6d28d97a915bf9409e9c43f77d8a22f2a80576d6 Mon Sep 17 00:00:00 2001
From: Tomasz Sobczyk <tomasz.sobczyk1997@gmail.com>
Date: Thu, 24 Dec 2020 17:01:56 +0100
Subject: [PATCH] Don't unload evalfile on set nnue false

---
 src/nnue/evaluate_nnue.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/nnue/evaluate_nnue.cpp b/src/nnue/evaluate_nnue.cpp
index c7bd681f..569df292 100644
--- a/src/nnue/evaluate_nnue.cpp
+++ b/src/nnue/evaluate_nnue.cpp
@@ -253,12 +253,18 @@ void init() {
 
   useNNUE = nnue_mode_from_option(Options["Use NNUE"]);
 
-  if (Options["SkipLoadingEval"] || useNNUE == UseNNUEMode::False)
+  if (Options["SkipLoadingEval"])
   {
     eval_file_loaded.clear();
     return;
   }
 
+  if (useNNUE == UseNNUEMode::False)
+  {
+    // Keep the eval file loaded. Useful for mixed bench.
+    return;
+  }
+
   std::string eval_file = std::string(Options["EvalFile"]);
 
 #if defined(DEFAULT_NNUE_DIRECTORY)