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Who played first? (Posted on 2004-05-07) Difficulty: 3 of 5
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.)

See The Solution Submitted by e.g.    
Rating: 3.7000 (10 votes)

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Solution No Subject | Comment 1 of 26

O when first, in the bottom right, X last in the top left.

 

The game went:

O bottom right.

X blocked his chance to go left.

O top right.

X blocked the three on the right side.

O top middle.

X blocked the three at the top.

Edited on May 7, 2004, 4:43 pm
  Posted by Sam on 2004-05-07 16:42:52

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