
A Google user
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I really like the way you enter numbers - it's very intuitive between tracking and entering. I even bought the "Premium" edition. But, after playing a LOT, my statistics keep disappearing, so I have to start at the beginning again. It's nice to be able to choose a random game, but I sure hate starting over again and again. Another crazy feature - the statistics track time for each type of puzzle and the number completed for each difficulty level, as well as the average number of HINTS you have taken for each difficulty level. That's great, but it DOES NOT track MISTAKES in the statistics. Well, you might as well just take a guess, rather than get a hint. Very strange design choice. Update April 10 2019. I THOUGHT they had fixed this, but today my statistic disappeared again - well over a thousand games gone. They still don't track mistakes, and ask you to verify an action, even though there is an undo. Too bad.
3 people found this review helpful

A Google user
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I love the difficulty of the puzzles, as I've found them to be harder than a few other apps in the store, however the hint system is virtually useless. In today's diabolical puzzle, i had the candidates in column 9 locked into two different pairs, and the hint told me there was a naked pair in the row. the hint system completely ignores your pencilmarks, and provides no actual information if and when you truly get stuck.
2 people found this review helpful

ilinkcs
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** daily download server not operable** It's a decent enough game, but has a major flaw if you want to keep your score stats: it randomly resets scores and guess back to default settings. One wouldn't want to buy the ad-free version of keeping score were important to you. Also, after a period of time the paid version runs out, and then you have to repurchase.
6 people found this review helpful