Given this tic-tac-toe position, as played by two expert players, who went first and where? Also, which was the last "move"?
X | O | O
---+---+---
| | X
---+---+---
| X | O
(An expert player is a player who would never play in such a way that would allow his opponent to win, and who would also try to get the possible best result.)
(In reply to
The true solution! by Tristan)
Sweet solution... the realization that O must have moved first (because
if it were X's move now, he wins) is key. I completely missed
that until you pointed it out.
Kudos Tristan.
re: The true solution!
