All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Logic
Reverse reasoning (Posted on 2018-11-01) Difficulty: 3 of 5
You find a drawing of an interrupted game of tic-tac-toe (noughts and crosses).
You know that each player was an expert, which means that none of them ever puts herself into a potentially losing position and that each always wins if her opponent gives her the opportunity.
There are two Xs and two Os in the diagram, and it is impossible to tell
whose move it is.

Ignoring symmetry, what is the position?

Source: David L. Silverman:

No Solution Yet Submitted by Ady TZIDON    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
revised solutionSteven Lord2018-11-09 02:59:05
Hints/Tipsre: soln? wrongAdy TZIDON2018-11-09 02:22:31
soln?Steven Lord2018-11-05 10:40:15
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information