Terni Lapilli

The ancient Roman game — 2000 years before tic tac toe

Red
Computer

Red places a piece

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How to play

1
Place phase: Take turns placing your 3 pieces on any empty square.
2
Slide phase: Once all 6 pieces are placed, take turns sliding one of your pieces to any adjacent empty square.
3
First to line up all 3 of their pieces in a row, column, or diagonal wins.
4
Unlike tic tac toe, pieces move — so the game never draws unless neither player can win.