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Results for “Mark” (171 total found)

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All Results 171 Videos 168 Bookmarks 0 Puzzles 2 Setters 0 Puzzle Types 0 Variants 0 Hosts 1

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M

Mark Goodliffe

52 videos

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Videos (168)

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Party Time
Public
31:43

Party Time

Mark Goodliffe
24,367 views Sep 29, 2026

Puzzles (2)

Variant Sudoku

Magic Square Sudoku

Setter: Aad van de Wetering
Anti-Knight Diagonal Magic Square

Normal sudoku rules apply. In addition, both marked diagonals must contain the digits 1-9. Cells that are a knight's move apart (in chess) c...

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Variant Sudoku

Switching Circuit

Setter: Neil Armchair

Draw two lines: one connecting the cells marked “A” and one connecting the cells marked “B”. The lines can only move orthogonally. Each cell...

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