From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Tue, 15 Nov 2016 21:03:15 +0000 (+0100)
Subject: Fix a crash issue when traversing PVs.
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=26bd29e45bea7c756550c3c8130ac64ba71375de;ds=inline

Fix a crash issue when traversing PVs.
---

diff --git a/src/main.cpp b/src/main.cpp
index de220eec..76aca51d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -119,7 +119,9 @@ void HashProbeImpl::ProbeMove(Position* pos, std::deque<StateInfo>* setup_states
 		// Follow the PV until we hit an illegal move.
 		std::stack<Move> pv;
 		std::set<Key> seen;
-		while (found && is_ok(entry->move())) {
+		while (found && is_ok(entry->move()) &&
+		       pos->pseudo_legal(entry->move()) &&
+		       pos->legal(entry->move())) {
 			FillMove(entry->move(), response->add_pv());
 			if (seen.count(pos->key())) break;
 			pv.push(entry->move());