diff --git a/leetcode/0529.Minesweeper/529. Minesweeper.go b/leetcode/0529.Minesweeper/529. Minesweeper.go
index aef5d2b8..786405ee 100644
--- a/leetcode/0529.Minesweeper/529. Minesweeper.go	
+++ b/leetcode/0529.Minesweeper/529. Minesweeper.go	
@@ -16,48 +16,31 @@ func updateBoard(board [][]byte, click []int) [][]byte {
 		board[click[0]][click[1]] = 'X'
 		return board
 	}
+	dfs(board, click[0], click[1])
+	return board
+}
 
-	mineMap := make([][]int, len(board))
-	for i := range board {
-		mineMap[i] = make([]int, len(board[i]))
-	}
-
-	for i := range board {
-		for j := range board[i] {
-			if board[i][j] == 'M' {
-				mineMap[i][j] = -1
-				for _, d := range dir8 {
-					nx, ny := i+d[0], j+d[1]
-					if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-						mineMap[nx][ny]++
-					}
-				}
-			}
+func dfs(board [][]byte, x, y int) {
+	cnt := 0
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] == 'M' {
+			cnt++
+		}
+	}
+	if cnt > 0 {
+		board[x][y] = byte(cnt + '0')
+		return
+	}
+	board[x][y] = 'B'
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] != 'B' {
+			dfs(board, nx, ny)
 		}
 	}
-	mineSweeper(click[0], click[1], board, mineMap, dir8)
-	return board
 }
 
 func isInBoard(board [][]byte, x, y int) bool {
 	return x >= 0 && x < len(board) && y >= 0 && y < len(board[0])
 }
-
-func mineSweeper(x, y int, board [][]byte, mineMap [][]int, dir8 [][]int) {
-	if board[x][y] != 'M' && board[x][y] != 'E' {
-		return
-	}
-	if mineMap[x][y] == -1 {
-		board[x][y] = 'X'
-	} else if mineMap[x][y] > 0 {
-		board[x][y] = '0' + byte(mineMap[x][y])
-	} else {
-		board[x][y] = 'B'
-		for _, d := range dir8 {
-			nx, ny := x+d[0], y+d[1]
-			if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-				mineSweeper(nx, ny, board, mineMap, dir8)
-			}
-		}
-	}
-}
diff --git a/leetcode/0529.Minesweeper/README.md b/leetcode/0529.Minesweeper/README.md
index f2166a69..d25c79c5 100644
--- a/leetcode/0529.Minesweeper/README.md
+++ b/leetcode/0529.Minesweeper/README.md
@@ -103,43 +103,33 @@ func updateBoard(board [][]byte, click []int) [][]byte {
 		board[click[0]][click[1]] = 'X'
 		return board
 	}
-	mineMap := make([][]int, len(board))
-	for i := range board {
-		mineMap[i] = make([]int, len(board[i]))
-	}
-	for i := range board {
-		for j := range board[i] {
-			if board[i][j] == 'M' {
-				mineMap[i][j] = -1
-				for _, d := range dir8 {
-					nx, ny := i+d[0], j+d[1]
-					if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-						mineMap[nx][ny]++
-					}
-				}
-			}
-		}
-	}
-	mineSweeper(click[0], click[1], board, mineMap, dir8)
+	dfs(board, click[0], click[1])
 	return board
 }
 
-func mineSweeper(x, y int, board [][]byte, mineMap [][]int, dir8 [][]int) {
-	if board[x][y] != 'M' && board[x][y] != 'E' {
+func dfs(board [][]byte, x, y int) {
+	cnt := 0
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] == 'M' {
+			cnt++
+
+		}
+	}
+	if cnt > 0 {
+		board[x][y] = byte(cnt + '0')
 		return
 	}
-	if mineMap[x][y] == -1 {
-		board[x][y] = 'X'
-	} else if mineMap[x][y] > 0 {
-		board[x][y] = '0' + byte(mineMap[x][y])
-	} else {
-		board[x][y] = 'B'
-		for _, d := range dir8 {
-			nx, ny := x+d[0], y+d[1]
-			if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-				mineSweeper(nx, ny, board, mineMap, dir8)
-			}
+	board[x][y] = 'B'
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] != 'B' {
+			dfs(board, nx, ny)
 		}
 	}
 }
+
+func isInBoard(board [][]byte, x, y int) bool {
+	return x >= 0 && x < len(board) && y >= 0 && y < len(board[0])
+}
 ```
\ No newline at end of file
diff --git a/website/content/ChapterFour/0500~0599/0529.Minesweeper.md b/website/content/ChapterFour/0500~0599/0529.Minesweeper.md
index 1593ad8b..d628f5ab 100644
--- a/website/content/ChapterFour/0500~0599/0529.Minesweeper.md
+++ b/website/content/ChapterFour/0500~0599/0529.Minesweeper.md
@@ -103,47 +103,35 @@ func updateBoard(board [][]byte, click []int) [][]byte {
 		board[click[0]][click[1]] = 'X'
 		return board
 	}
-	mineMap := make([][]int, len(board))
-	for i := range board {
-		mineMap[i] = make([]int, len(board[i]))
-	}
-	for i := range board {
-		for j := range board[i] {
-			if board[i][j] == 'M' {
-				mineMap[i][j] = -1
-				for _, d := range dir8 {
-					nx, ny := i+d[0], j+d[1]
-					if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-						mineMap[nx][ny]++
-					}
-				}
-			}
-		}
-	}
-	mineSweeper(click[0], click[1], board, mineMap, dir8)
+	dfs(board, click[0], click[1])
 	return board
 }
 
-func mineSweeper(x, y int, board [][]byte, mineMap [][]int, dir8 [][]int) {
-	if board[x][y] != 'M' && board[x][y] != 'E' {
+func dfs(board [][]byte, x, y int) {
+	cnt := 0
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] == 'M' {
+			cnt++
+		}
+	}
+	if cnt > 0 {
+		board[x][y] = byte(cnt + '0')
 		return
 	}
-	if mineMap[x][y] == -1 {
-		board[x][y] = 'X'
-	} else if mineMap[x][y] > 0 {
-		board[x][y] = '0' + byte(mineMap[x][y])
-	} else {
-		board[x][y] = 'B'
-		for _, d := range dir8 {
-			nx, ny := x+d[0], y+d[1]
-			if isInBoard(board, nx, ny) && mineMap[nx][ny] >= 0 {
-				mineSweeper(nx, ny, board, mineMap, dir8)
-			}
+	board[x][y] = 'B'
+	for i := 0; i < 8; i++ {
+		nx, ny := x+dir8[i][0], y+dir8[i][1]
+		if isInBoard(board, nx, ny) && board[nx][ny] != 'B' {
+			dfs(board, nx, ny)
 		}
 	}
 }
-```
 
+func isInBoard(board [][]byte, x, y int) bool {
+	return x >= 0 && x < len(board) && y >= 0 && y < len(board[0])
+}
+```
 
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 <div style="display: flex;justify-content: space-between;align-items: center;">