Loyal Blog Followers: I'm back. I wish I could say that I've been swamped with so many great new puzzles. Unfortunately, the hits are harder to find. I've also noticed a significant decline in the number of puzzles being published on the App Store.
The Futoshiki comes from Aliaksandr Uvarau. The object is to create a Latin Square where each row/column has different numbers.  The black triangles are actually 'greater than signs'.?

The 4x4 grids are incredibly easy. Perfect if you're listening to a tv show that's all dialog.  The 9x9 grids are really terrific.  I've only done a few and each has taken about 30 minutes. These puzzles reminded me of Sudoku Killer.

Altogether there are 12,000 levels - completely free.  I tried to contact Aliaksandr about how he generated these. I was unsuccessful. Surely he didn't do them by hand!"
Also interesting, the 'greater than' symbols always point down or right and never left or up. Hmmmm.

https://itunes.apple.com/us/app/the-futoshiki/id1398126397"mt=8
http://coralgames.com.au/app_info"id=com.alexuvarov.android.futoshiki
https://play.google.com/store/apps/details"id=com.alexuvarov.android.futoshiki

Similar Games & Other Latin Square Puzzles
Sudoku Sweeper
Futoshiki  also known as Hi-Lo Sudoku
LogicCity
Kropk'i Sudoku
Logi5Puzz
TetragonoS
Futoshiki Light
Futoshiki Game
Joint Number Place

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