toetac-tic

Arrow keys to move cursor
Z - Pick/Drop pawn
X - Return picked pawn to its previous position
S - Reset game

Valid movement shown by the gray indicator at the edge of each grid.
Pawns at the grid on the side of the board cannot move diagonally, only pawn in the corners and center of the board can move diagonally.
A player who can make a row with his pawns win the game.

(also can be played at this link)

-- Update : Fix pressing X at first phase causing error/crash.