Game is great....until the puzzles no longer allow you to solve them through logic – Riddle Stones - Cross Numbers Review

This game is really fun to a point. Once you get high enough the puzzles stop allow you to solve through logic alone, requiring that you either guess (then lose lives) or pay money to get the various boosters that would help fill in the blanks. It’s irritating that you can’t simply play the game any more once you’ve surpassed that point.
Review by Kpeterso on Riddle Stones - Cross Numbers.