public void DigAShovel_ItsNotMine_ShouldBeTrue()
        {
            var dig = new Dig();

            char[,] board = new char[, ]
            {
                { '1', '1', '1' },
                { '1', 'M', '1' },
                { '1', '1', '1' },
            };
            var result = dig.DigShovel(1, 0, board, 3);

            Assert.True(result);
        }