Sudoku by Rajesh Kumar

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Fillomino (X-Sums) by Prasanna Seshadri

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Fillomino (X-Sums) by Prasanna Seshadri

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Snake by Yuhao Du

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Snake by Serkan Yürekli

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Battleships (Observers) by JinHoo Ahn

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Battleships (Observers) by Murat Can Tonta

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Tapa (Line) by Takeya Saikachi

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Tapa (Line) by Murat Can Tonta

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Skyscrapers (Sum) by Grant Fikes

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