From 2163b4e4f2cbfcb81f85a91f0625102ebed470c5 Mon Sep 17 00:00:00 2001
From: Kensuke Matsuzaki <knsk.mtzk@gmail.com>
Date: Tue, 2 Jul 2019 23:37:45 +0900
Subject: [PATCH 1/3] Buffer overflow in ladder search

---
 src/Ladder.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Ladder.cpp b/src/Ladder.cpp
index 2e8d34a..719540f 100644
--- a/src/Ladder.cpp
+++ b/src/Ladder.cpp
@@ -87,7 +87,7 @@ IsLadderCaptured( const int depth, search_game_info_t *game, const int ren_xy, c
   int escape_color, capture_color, escape_xy, capture_xy, neighbor;
   bool result;
   
-  if (depth >= 100) {
+  if (depth >= 100 || game->moves >= MAX_RECORDS - 1) {
     return ALIVE;
   }
 

From a55f2a8e5fc6dc48f5a74bdfe3c934e1cc030a63 Mon Sep 17 00:00:00 2001
From: Kensuke Matsuzaki <knsk.mtzk@gmail.com>
Date: Fri, 24 May 2019 00:06:55 +0900
Subject: [PATCH 2/3] Fix pass in simulation

---
 src/Simulation.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Simulation.cpp b/src/Simulation.cpp
index df28524..cb68b74 100644
--- a/src/Simulation.cpp
+++ b/src/Simulation.cpp
@@ -16,7 +16,8 @@ using namespace std;
 void
 Simulation( game_info_t *game, int starting_color, std::mt19937_64 *mt )
 {
-  int color = starting_color, pos = -1, pass_count = (game->record[game->moves - 1].pos == PASS && game->moves > 1);
+  int color = starting_color, pos = -1;
+  int pass_count = 0;
 
   // シミュレーション打ち切り手数を設定
   int length = MAX_MOVES - game->moves;

From 2784db2e6741ecfef5fc381aa5d77775cb286d61 Mon Sep 17 00:00:00 2001
From: Kensuke Matsuzaki <knsk.mtzk@gmail.com>
Date: Fri, 16 Aug 2019 17:08:58 +0900
Subject: [PATCH 3/3] Fix final_score with seki

---
 src/UctSearch.cpp | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/UctSearch.cpp b/src/UctSearch.cpp
index fe2755b..47b2d3b 100644
--- a/src/UctSearch.cpp
+++ b/src/UctSearch.cpp
@@ -1565,16 +1565,19 @@ UctAnalyze( game_info_t *game, int color )
   for (int y = board_start; y <= board_end; y++) {
     for (int x = board_start; x <= board_end; x++) {
       const int pos = POS(x, y);
-      const double ownership_value = (double)statistic[pos].colors[S_BLACK] / uct_node[current_root].move_count;
-      if (ownership_value > 0.5) {
-	black++;
-      } else {
-	white++;
+      const double black_ownership = (double)statistic[pos].colors[S_BLACK] / uct_node[current_root].move_count;
+      const double white_ownership = (double)statistic[pos].colors[S_WHITE] / uct_node[current_root].move_count;
+      if (black_ownership > 0.5) {
+        black++;
+      }
+      if (white_ownership > 0.5) {
+        white++;
       }
     }
   }
 
-  PrintOwner(&uct_node[current_root], color, owner);
+  PrintOwner(&uct_node[current_root], S_BLACK, owner);
+  PrintOwner(&uct_node[current_root], S_WHITE, owner);
 
   return black - white;
 }