Very difficult sudoku! In my humble opinion, it is included in the TOP-5 of the most difficult killer sudoku on the site. It can only be solved by looking through alternatives, so you need to be very careful not to lose sight of the only option, being true.
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ssg
2021-10-26 09:27
Ужасно! Мало того, что используется подбор, так он ещё оказался с несколькими вариантами решения.
SPOILER
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