Sudoku Tatamibari - 200 Easy to Medium Puzzles 11x11 (Volume 9): Veider, Dart: 9781545073759: Amazon.com: Books
Queens on 11x11 Torus — Rätselportal — Logic Masters Deutschland
Sudoku Binary - 200 Easy to Normal Puzzles 11x11 (Volume 47): Veider, Dart: 9781703105414: Amazon.com: Books
Killer Jigsaw Sudoku and Kin-Kon-Kan All Levels. : Basford Holmes (author) : 9781073514731 : Blackwell's
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400 Hitori 9x9 + 11x11 + 13x13 + 15x15: Good Sudoku Logic Puzzles. Holmes Presents to Your Attention a Superb Puzzle. (Pluz 250 Sudoku and 250 Puzzles a book by Basford Holmes