The difficulty level soars, as even more tricks get added to the mix: X-Wing; Swordfish; XY-Wing; XYZ-Wing; and the Gordonian Rectangle.
Mensa Absolutely Nasty Sudoku Level 3
- 作者： Longo, Frank
- 出版社： Puzzlewright
- 出版日期： 2007-03-01
- ISBN碼： 9781402743986
- 編號： 2039790311964
$ 313 元
原價 348
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$313