diff --git a/TicTacToeEx/T3EBoard.cpp b/TicTacToeEx/T3EBoard.cpp
index 64e2637..5549bcd 100644
--- a/TicTacToeEx/T3EBoard.cpp
+++ b/TicTacToeEx/T3EBoard.cpp
@@ -81,14 +81,15 @@
 //�ǂ̔Ֆʂ������Ɉ�ԑ傫���]���������炷���m�F�B
 //����:int node �ǖ�, in turn ���, int depth ��ǂ݂̐[��
 //�߂�l�F�]���l
-int T3EBoard::Minmax(int node, int turn, int depth)
+int T3EBoard::Minmax(int *node, int turn, int depth)
 {
 	//�t�̏ꍇ�]���l��Ԃ�
-	//if (depth == 0) return this->eval();
+	if (depth == 0) return this->CheckWin(node);
 
+	//�m�[�h����i�߂�
 	//this->expand_node(node, NextTurn);
 
-	int best = -INFINITY;
+	int best = INT_MIN;
 	/*for (int i = 0;i < k;i++) {
 		int val = this->Minmax(ai, NextTurn, (depth - 1));
 		if (turn == PLAYER1 && best < val) best = val;
@@ -97,6 +98,71 @@
 
 	return best;
 }
+
+//�z�񂲂Ƃɂ�鏟�s����
+//����:int *Board�@�ǖ�
+//�߂�l�G0 ������ 1(PLAYER1) ��菟�� -1(PLAYER2) ��菟��
+int T3EBoard::CheckWin(int *Board)
+{
+	int row, col;
+	bool check;
+	int sign[2] = { STONE1, STONE2 };
+
+	// �v���C���[���ɔ���
+	for (int player = PLAYER1; player <= PLAYER2; player++) {
+		// �΂ߕ���1
+		for (row = 0, check = true; row < BOARD_HEIGHT; row++) {
+			if (Board[row * BOARD_WIDTH + row] * sign[player] <= 0) check = false;
+		}
+		if (check) {
+			if (player == PLAYER1)return 1;
+			return -1;
+		}
+
+		// �΂ߕ���2
+		for (row = 0, check = true; row < BOARD_HEIGHT; row++) {
+			if (Board[row * BOARD_WIDTH + (BOARD_HEIGHT - 1 - row)] * sign[player] <= 0) check = false;
+		}
+		if (check) {
+			if (player == PLAYER1)return 1;
+			return -1;
+		}
+
+		// ������
+		for (row = 0; row < BOARD_HEIGHT; row++) {
+			for (col = 0, check = true; col < BOARD_WIDTH; col++) {
+				if (Board[row * BOARD_WIDTH + col] * sign[player] <= 0) check = false;
+			}
+			if (check) {
+				if (player == PLAYER1)return 1;
+				return -1;
+			}
+		}
+
+		// �c����
+		for (col = 0; col < BOARD_WIDTH; col++) {
+			for (row = 0, check = true; row < BOARD_HEIGHT; row++) {
+				if (Board[row * BOARD_WIDTH + col] * sign[player] <= 0) check = false;
+			}
+			if (check) {
+				if (player == PLAYER1)return 1;
+				return -1;
+			}
+		}
+	}
+
+	return 0;
+
+}
+
+//�@�m�[�h����i�߂�
+// ����:int *Board �ǖ�
+//�߂�l:��‹ǖʂ�i�߂��ǖ�
+int expandnode(int *Board)
+{
+	return 0;
+}
+
 // �l�Ԃ̎��
 // �߂�l�F�R�}��łꏊ
 int T3EBoard::Human()
diff --git a/TicTacToeEx/T3EBoard.h b/TicTacToeEx/T3EBoard.h
index 263370f..3da23e1 100644
--- a/TicTacToeEx/T3EBoard.h
+++ b/TicTacToeEx/T3EBoard.h
@@ -22,7 +22,9 @@
 	void ShowBoard();			// �Օ\��
 	void SetStone(int place);	// �R�}��u��
 	int CPU();					// CPU�̎v�l
-	int Minmax(int node, int turn, int depth);//Minmax�@�̎��{
+	int Minmax(int *node, int turn, int depth);//Minmax�@�̎��{
+	int CheckWin(int *Board);   // �󋵂ɂ�鏟�s�`�F�b�N
+	int expandnode(int *Board);  // �m�[�h��i�߂�
 	int Human();				// �l�Ԃ̎��
 	int CheckWin();				// ��������
 public: