From 1de1262c396a5bd2527a660272765d6e102d6c83 Mon Sep 17 00:00:00 2001
From: Hiraoka <khi@users.osdn.me>
Date: Thu, 1 Oct 2020 02:54:44 +0900
Subject: [PATCH] Fix #765 (handicap bug in #758)

---
 src/main/java/featurecat/lizzie/rules/SGFParser.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/featurecat/lizzie/rules/SGFParser.java b/src/main/java/featurecat/lizzie/rules/SGFParser.java
index 3456339ec..3cc146e50 100644
--- a/src/main/java/featurecat/lizzie/rules/SGFParser.java
+++ b/src/main/java/featurecat/lizzie/rules/SGFParser.java
@@ -121,7 +121,8 @@ private static boolean parse(String value) {
       Lizzie.leelaz.supportScoremean = false;
     }
 
-    // Detach engine for avoiding useless "play" and "undo" (#752).
+    // Detach engine for avoiding useless "play" and "undo" (#752)
+    // except for handicap stones in parseValue() (#765).
     Lizzie.leelaz.isAttached = false;
     parseValue(value, null, false);
     Lizzie.leelaz.isAttached = true;
@@ -347,6 +348,8 @@ private static BoardHistoryList parseValue(
                 }
               }
             } else {
+              // Setting handicap stones. We need to send "play" to the engine here.
+              Lizzie.leelaz.isAttached = true;
               if (move == null) {
                 if (history == null) {
                   Lizzie.board.pass(color);
@@ -365,6 +368,7 @@ private static BoardHistoryList parseValue(
               } else {
                 history.flatten();
               }
+              Lizzie.leelaz.isAttached = false;
             }
           } else if (tag.equals("PB")) {
             blackPlayer = tagContent;