Bug: positionAllowed allows fields outside the grid
grid x and y are in [1, …], but positions in [0, …] are allowed.
grid x and y are in [1, …], but positions in [0, …] are allowed.
10-bug-positionallowed-allows-fields-outside-the-grid to address this issue created branch 10-bug-positionallowed-allows-fields-outside-the-grid to address this issue
mentioned in merge request !39 (merged)
closed with commit 30ae9268