3×3 grid, three in a row, three marks each.
You start
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Each player keeps only three marks on the board. Place a fourth and your oldest disappears — the faded one shows you which. The board never fills, so nobody ever draws.
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How to play
Pick your table
Two players on a 3×3, three on a 4×4, four on a 5×5. Any seat can be a human or the computer, so play alone, pass one phone around, or mix both.
Line up your marks
Three in a row wins on every board — across, down or diagonally.
Watch your oldest mark
Once you are at three, every new mark costs you your oldest. Winning is as much about what you give up as what you take.
Why nobody draws here
Ordinary tic-tac-toe is a solved game: two careful players draw every single time. Capping each player at three marks removes the stalemate entirely — the board keeps shifting, old threats expire, and a losing position can turn in a single move.
Playing with three or four
More players need more room. Three play on a 4×4 by default — tight, slow and deliberate, where every mark you place takes a square from someone else — with a roomier 5×5 available if you would rather the rounds moved quickly. Four always play on 5×5. Three in a row and three marks each throughout. Turn order is worth a few points, so the opening seat rotates every round, and a turn clock is there if the table needs hurrying along.