In either case, allow me to make two suggestions:ġ). It is not entirely clear to me what you're asking, whether you claim that you're solving "Evil" puzzles in what you consider to be a short time, and thus they're not really all that evil, or you are a sudoku prodigy and are thus frustrated by puzzles that appear easy to you. This will not be counted as mistake when you ask the web to check your progress. This allows you to put multiple numbers in a box, representing possible choices. One special feature for is pencil marking (last entry in option page). This can help you put a couple of numbers in without having to list choices. Then, Look at a box of nine where the number is not there yet. One quick elimination technique I use at the start of a game is this: take a number, look throughout the board for where that number already exists. I have seen group of 4 in an evil puzzle. 23, 37 and 27 would still be such a group). Each box can even have less possibilities for this to be valid, but total choice has to be the same with number of boxes. For example, if you got 3 corresponding boxes with 237, 237 and 237 in a line, they won't be anywhere else in the line. This, interestingly, can also be generalized to a group of corresponding boxes with that exact number of choices. Also, other corresponding boxes (for example, being in the same line/box-of-nine with the pairs) will not have those two numbers in the pair (limit choices by lot)
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