From c5ed9d1d76e3ac98836ed2a49f9429304a329920 Mon Sep 17 00:00:00 2001
From: Tomasz Sobczyk <tomasz.sobczyk1997@gmail.com>
Date: Sat, 12 Jun 2021 18:10:55 +0200
Subject: [PATCH] fix accumulator state initialization in set_from_packed_sfen

---
 src/tools/sfen_packer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/tools/sfen_packer.cpp b/src/tools/sfen_packer.cpp
index a8e1fec2..8182503c 100644
--- a/src/tools/sfen_packer.cpp
+++ b/src/tools/sfen_packer.cpp
@@ -260,6 +260,8 @@ namespace Stockfish::Tools {
 
         pos.clear();
         std::memset(si, 0, sizeof(StateInfo));
+        si->accumulator.state[WHITE] = Eval::NNUE::INIT;
+        si->accumulator.state[BLACK] = Eval::NNUE::INIT;
         pos.st = si;
 
         // Active color