Не проходит проверку по 3му условию.

private void countMineNeighbors() {
        for (int i = 0; i < SIDE; i++) {
            for (int j = 0; j < SIDE; j++) {
                if (!gameField[j][i].isMine) {
                    ArrayList<GameObject> neigbours = getNeighbors(gameField[j][i]);
                    for (GameObject neigbour : neigbours) {
                        if (neigbour.isMine) {
                            gameField[j][i].countMineNeighbors++;
                        }
                    }
                }
            }
        }
    }

    private ArrayList<GameObject> getNeighbors(GameObject gameObject) {
        ArrayList<GameObject> neighbors = new ArrayList<>();
        int x1 = (gameObject.x - 1 < 0) ? 0 : gameObject.x - 1;
        int x2 = (gameObject.x + 1 < SIDE - 1) ? gameObject.x + 1 : SIDE - 1;
        int y1 = (gameObject.y - 1 < 0) ? 0 : gameObject.y - 1;
        int y2 = (gameObject.y + 1 < SIDE - 1) ? gameObject.y + 1 : SIDE - 1;
        for (int i = y1; i <= y2; i++) {
            for (int j = x1; j <= x2; j++) {
                boolean isCenter = (i == gameObject.y && j == gameObject.x);
                if (!isCenter) {
                    neighbors.add(gameField[j][i]);
                }
            }
        }
        return neighbors;
    }