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GC8HTMQ Sudoku-Challenge #5 Ordnungssudoku (Unknown Cache) in Zürich, Switzerland created by Doctor Strangelove
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GC8HYAV Sudoku Challenge #14 Gerades Bimaru-Sudoku (Unknown Cache) in Zürich, Switzerland created by Doctor Strangelove
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GC8HE19 Sudoku-Challenge #1 Domino-Sudoku (Unknown Cache) in Zürich, Switzerland created by Doctor Strangelove
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