Good puzzles, needs improvement
Really like these kinds of puzzles. But the action buttons don’t work well. I can’t get “Undo” to work. You can only get “Check” to work immediately after you place a number string into the puzzle. Placing one number in one square is difficult and strange. You have to click on a number string from the list that is the wrong length of the column/row involved, then click on the exact space you want to fill, and a tool to enter single digits will appear. These issues need to be resolved. But the game is playable despite these issues.
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