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Sudoku

'Flow' app is an artful Sudoku substitute for the visual brain

'Flow' app is an artful Sudoku substitute for the visual brain

"Flow"
iOS
Free/$.99 ad-free version
Big Duck Games
Rating: 4 out of 4

When you first open "Flow," you are not treated to the typical one- or two-screen tutorial that seems to be standard with iOS games.

Instead, it's a bit like the film "Inception." You see a field of 25 squares and eight colored dots. You can almost hear Leo DiCaprio asking you to draw him a maze in one minute that takes two minutes to solve.

"Flow" challenges the visual and problem solving side of the brain in a way that is...

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