diff --git a/src/main/client/src/Game.jsx b/src/main/client/src/Game.jsx
index b06950a..2fd856c 100644
--- a/src/main/client/src/Game.jsx
+++ b/src/main/client/src/Game.jsx
@@ -12,7 +12,7 @@ import {
 import {
   StompContext,
   BLACK,
-  ANY_TERRITORY,
+  TERRITORY,
   TERRITORY_B,
   REMOVED_B,
   ANY_REMOVED,
@@ -362,8 +362,8 @@ function paintStonesCounting(context, board, countingGroup) {
           "rgba(255,255,255,0.25)"
         showShadow(context, grid_x, grid_y, style)
       }
-      if (color & ANY_TERRITORY) {
-        let style = (color & ANY_TERRITORY) === TERRITORY_B ?
+      if (color & TERRITORY) {
+        let style = (color & TERRITORY) === TERRITORY_B ?
           "rgba(0,0,0)" :
           "rgba(255,255,255)"
         showTerritory(context, grid_x, grid_y, style)
diff --git a/src/main/client/src/model/board.js b/src/main/client/src/model/board.js
index 3e49c03..0783159 100644
--- a/src/main/client/src/model/board.js
+++ b/src/main/client/src/model/board.js
@@ -89,9 +89,9 @@ export function getGroupInfo(board, xx, yy) {
 
 export function rehydrate(board) {
   let dim = board.length
-  let result = []
+  let result = Array(dim)
   for (let i = 0; i < board.length; i++) {
-    result.push([])
+    result[i] = Array(dim)
   }
   for (let y = 0; y < board.length; y++) {
     for (let x = 0; x < board[y].length; x++) {
diff --git a/src/main/client/src/util.js b/src/main/client/src/util.js
index b35668b..9b59966 100644
--- a/src/main/client/src/util.js
+++ b/src/main/client/src/util.js
@@ -6,17 +6,18 @@ import toast from "react-hot-toast"
 export const StompContext = createContext()
 
 export const base = "/app"
+
 export const BLACK = 32
 export const WHITE = 64
 export const TERRITORY_B = 2
 export const TERRITORY_W = 4
-export const ANY_TERRITORY = TERRITORY_W | TERRITORY_B
 export const REMOVED_B = 8
 export const REMOVED_W = 16
+
+export const TERRITORY = TERRITORY_W | TERRITORY_B
 export const ANY_REMOVED = REMOVED_W | REMOVED_B
 
-const COLORS = BLACK | WHITE;
-const MARKERS = ~COLORS;
+export const COLORS = BLACK | WHITE;
 
 export async function tfetch(url, options) {
   let response
@@ -60,7 +61,7 @@ function dec2hex(dec) {
 }
 
 export function hasStone(color) {
-  return (color & COLORS) != 0 && (color & MARKERS) == 0;
+  return (color & COLORS) !== 0
 }
 
 export function getBaseColor(color) {
@@ -87,6 +88,8 @@ export async function doTry(task, onError) {
   } catch (e) {
     if (onError) {
       onError()
+    } else {
+      console.log(e)
     }
     toast.error(e.message)
   }