From e2b62fecd809b6c3c8bbe217f56df96b2f915d16 Mon Sep 17 00:00:00 2001
From: rkfg <rkfg@rkfg.me>
Date: Thu, 3 Mar 2016 11:43:50 +0300
Subject: [PATCH] Prevent repeatable conceding (fixes #1526).

---
 Mage/src/main/java/mage/game/GameImpl.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Mage/src/main/java/mage/game/GameImpl.java b/Mage/src/main/java/mage/game/GameImpl.java
index 6d35aad001..5b39cac2a6 100644
--- a/Mage/src/main/java/mage/game/GameImpl.java
+++ b/Mage/src/main/java/mage/game/GameImpl.java
@@ -1192,7 +1192,7 @@ public abstract class GameImpl implements Game, Serializable {
     @Override
     public synchronized void concede(UUID playerId) {
         Player player = state.getPlayer(playerId);
-        if (player != null) {
+        if (player != null && !player.hasLost()) {
             logger.debug("Player " + player.getName() + " concedes game " + this.getId());
             fireInformEvent(player.getLogName() + " has conceded.");
             player.concede(this);