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- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - Quadruple Circles: Digits in a circle must be appear at least once in the four cells surrounding the circle. - Positive Diagonal/Negative Diagonal: Digits along the positive diagonal (R9C1 to R1C9) must be unique. Digits along the negative diagonal (R1C1 to R9C9) must be unique. - Nonconsecutive: Orthogonally adjacent cells cannot hold consecutive digits. - X: Cells separated by X must sum to 10.
Easy Break-in, Tough Getaway
By lgastako
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - Quadruple Circles: Digits in a circle must be appear at least once in the four cells surrounding the circle. - Positive Diagonal/Negative Diagonal: Digits along the positive diagonal (R9C1 to R1C9) must be unique. Digits along the negative diagonal (R1C1 to R9C9) must be unique. - Nonconsecutive: Orthogonally adjacent cells cannot hold consecutive digits. - X: Cells separated by X must sum to 10.