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game state
Player X
Player O
move
1' ? !- # ! t t
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PlayerGoal: play tic-tac-toe
Wait your turn
Finish the game
Update the
game state
Inform your move
to the opponent
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338
XVI Simpósio Brasileiro de Engenharia de Software
PlayerGoal: play tic-tac-toe
opponent paired
Wait your turn
new game
win, tie or draw
state updated
Finish the game
end of game
move notified
your move
his move
Inform your move
to the opponent
Update the game state
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