Dir Square by Zhuoliang Fu FREE

 Dir Square comes from Zhuoliang Fu. The object is to slide the tiles up/down & left/right so that all the colors line up either in rows or in columns.





We've seen this type of puzzle many many times. It's often described at a 2D version of Rubik's Cube.

What's different? To make a row shift right, there must be an arrow that's pointing right. Alternatively, if there's no such arrow, tap on an arrow that's pointing to the left.  This concept is definitely cool. But it does not make these puzzles much harder than the other versions.

The grids go from 3x3 to 7x7. According to the Leaderboard, I'm the only person who's done them all.

https://itunes.apple.com/us/app/dir-square/id1374881580?mt=8

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