|The Prague Czecherboard Puzzle|
For the 28th International Puzzle Party, held in Prague (the Czech Republic) in August 2008, Kate designed a puzzle with a pun in its theme. The Prague Czecherboard puzzle consists of 36 square pieces, with the letters P R A G U E cut out of them 6 times. Each letter is unevenly divided between red and blue, though there are 18 of each color, representing the Czech flag.
They are to be solved with three conditions simultaneously, mingling the themes of Latin squares, checkerboards, and Sudoku (see below). We have a few of this limited edition design still available, while they last. $22
Our challenge to the world was to solve this puzzle with more than 18 rectangles of 2x3 that contain all 6 letters, while also following goals 1 and 2. The first solver would win a prize.
UpdateDecember 6, 2008:
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