UPDATE: I deleted this app a long time ago for space on my device. Now I've downloaded it again, but there is no way I can find to "Restore Purchases" even though I paid for the Premium features. Looks like I'll have to delete it again.
PREVIOUS 5-STAR REVIEW: Where has this game been hiding? I've looked for a sudoku that does the pencil marks for you. But until now, I couldn't find one. One thing that worries me. I can't find a way to replay boards. So when I run out of puzzles in my favorite theme, I'm going to be sad. But since I paid for the premium features, I feel that I should be allowed to replay any board. Also, I should be able to have a personal scoreboard, etc. Also, the premium "Branch" feature shouldn't rack up a miss when we try something in the hard levels, just to see if it will work. In other words, if "Branch" is the scratch pad, then "Revert" should be the eraser. And the only penalty should be that, of course, it takes longer to solve the puzzle. Anyway, FANTASTIC app, and the only sudoku I've ever played for more than 30 seconds before deleting.
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