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Squishdoku: The grid is divided into nine 3x3 regions that overlap along the dotted grey line. Fill the grid with digits 1-9. digits cannot repeat in any row, column or region.
Dutch Whispers: Adjacent digits along an orange line differ by at least four.
Kropki Dots: Cells separated by a black dot contain digits in a 1:2 ratio. Cells separated by an outlined white dot contain consecutive digits.
Quads: Digits contained within a large outlined white dot appears in at least one of the four adjacent cells.
Minimums: Cells surrounded by inward-facing inequality signs contain digits lower than the four orthogonally adjacent cells.
Odds and Evens: Digits in cells containing a grey circle are odd. Digits in cells containing a grey square are even.
Anti-Kropki Dots: Cells separated by an outlined yellow dot cannot contain consecutive digits or digits in a 1:2 ratio.
Anti-Quads: Digits contained within a large outlined yellow dot cannot appear within any of the four adjacent cells.