# Requirement change

We want to offer a bigger board as a second variant: 4 columns, 4 rows, and you need 4 in a row —
horizontally, vertically or on either diagonal — to win. Everything else about how a game is
played stays exactly the same: X still moves first, a move onto an occupied cell or off the
board is still rejected without costing a turn, a win is still checked before a draw, and nothing
about the standard 3x3 game changes.

The grader will build this board through the same entry point you already have. Nothing new
needs to be added to it.
