Problem 90. Connect Four Win Checker

Created by Cody Team

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Last Solution submitted on Aug 08, 2022

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Solution 6622314

Solution 342700

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John on 30 Oct 2013

Padded with 0's in convolution kernel to avoid collisions

Solution 309893

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Michael Ryan on 23 Aug 2013

Wow, using a string really cuts down on solution size.

Solution 117804

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3 Comments

Dennis J on 12 Jul 2013

Can someone please tell me whats going on?!

Tim on 15 Jul 2013

The reshape function creates a matrix with the vector [1 3 9 27] placed vertically, horizontally, and diagonally; the conv2 function does sort of a dot product of these with all sets of four elements in the test matrix; if [1 1 1 1] or [2 2 2 2] appears, the result will be 40 or 80, respectively.

Piotr Balik on 7 Sep 2021

Impressive code compression

Solution 2314

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1 Comment

Ned Gulley on 20 Jan 2015

This code is referenced in the following blog post: http://blogs.mathworks.com/community/2015/01/19/robot-game-playing-in-matlab-part-2/

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Problem 90. Connect Four Win Checker

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Problem 90. Connect Four Win Checker

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