diff --git a/server.js b/server.js
index 20ded88c77df735eb1085b3d3ebfd961d8abd388..8fab326462928f7b1acc0dc4d1c1023f70d2e35c 100644
--- a/server.js
+++ b/server.js
@@ -170,53 +170,49 @@ function checkWin(board, row, col) {
     const WINNING_LENGTH = 4;
 
     const directions = [
-    [0, 1], // horizontal
-    [1, 0], // vertical
-    [1, 1], // diagonale descendante
-    [1, -1], // diagonale montante
+        [0, 1],   // horizontal →
+        [1, 0],   // vertical ↓
+        [1, 1],   // diagonale descendante ↘
+        [1, -1]   // diagonale montante ↗
     ];
 
     for (const [dx, dy] of directions) {
-    let count = 1;
-
-    // Dans une direction
-    for (let step = 1; step < WINNING_LENGTH; step++) {
-        const newRow = row + step * dx;
-        const newCol = col + step * dy;
-        if (
-        newRow >= 0 &&
-        newRow < ROWS &&
-        newCol >= 0 &&
-        newCol < COLS &&
-        board[newRow][newCol] === player
-        ) {
-        count++;
-        } else {
-        break;
+        let count = 1;
+
+        
+        for (let step = 1; step < WINNING_LENGTH; step++) {
+            const newRow = row + step * dx;
+            const newCol = col + step * dy;
+            if (
+                newRow >= 0 && newRow < ROWS &&
+                newCol >= 0 && newCol < COLS &&
+                board[newRow][newCol] === player
+            ) {
+                count++;
+            } else {
+                break;
+            }
         }
-    }
 
-    // Dans l’autre direction
-    for (let step = 1; step < WINNING_LENGTH; step++) {
-        const newRow = row - step * dx;
-        const newCol = col - step * dy;
-        if (
-        newRow >= 0 &&
-        newRow < ROWS &&
-        newCol >= 0 &&
-        newCol < COLS &&
-        board[newRow][newCol] === player
-        ) {
-        count++;
-        } else {
-        break;
+        // Direction opposée 
+        for (let step = 1; step < WINNING_LENGTH; step++) {
+            const newRow = row - step * dx;
+            const newCol = col - step * dy;
+            if (
+                newRow >= 0 && newRow < ROWS &&
+                newCol >= 0 && newCol < COLS &&
+                board[newRow][newCol] === player
+            ) {
+                count++;
+            } else {
+                break;
+            }
         }
-    }
 
-    if (count >= WINNING_LENGTH) {
-        return player;
+        if (count >= WINNING_LENGTH) {
+            return player;
+        }
     }
 
     return null;
-    }
-}
\ No newline at end of file
+}