Problem 44363. Is this is a Tic Tac Toe X Win?

Created by Doug Hull

Solve Later

For the game of Tic Tac Toe we will be storing the state of the game in a matrix M.
For this game:
We would store the state as this:
-1  1  1 
 1 -1 -1
 1 -1 -1
If there were any blanks squares, they would be 0;
For this challenge, given a game state, does X (1) have a three in a row on any row, column or major diagonal?

Solve

Solution Stats

1773 Solutions
524 Solvers

Last Solution submitted on Dec 04, 2025

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Sean de Wolski on 17 Oct 2017

Solution 7 should be correct. The diagonal of -1s is a valid win.

Hope all is well with you, Doug!

Ned Gulley on 17 Oct 2017

@Sean, I think Doug's got it right. He's asking only if the X side (that is +1) is in a winning position. In test 7, the O side (-1) is in a winning position. So the answer given is correct.

Solution Comments

Show comments

Problem Recent Solvers524

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 44363. Is this is a Tic Tac Toe X Win?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers524

Suggested Problems

More from this Author51

Problem Tags

Community Treasure Hunt

Problem 44363. Is this is a Tic Tac Toe X Win?

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers524

Suggested Problems

More from this Author51

Problem Tags

Community Treasure Hunt

Players