Librería Samer Atenea
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Kálamo Books
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Donde los libros
Librería Kolima (Madrid)
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200 puzzles! Circuit Board Square is a logic-based number-placement puzzle. The objective is to fill in the 3x3 grid with all of the digits from 1 to 9. The sums from each of the paths are determined by the values in the squares connected to those paths.