Chess - Numericana
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Two-Player Mathematical Games - Combinatorial Games - Numericana
Maths 1202 To 1800 AD, PDF, Horizon
Numericana

Chess - Numericana

Prime Numbers The Most Mysterious Figures in Math - D. Wells

Squaring Squares, Rectangles and Triangles, Links

Combinatorics and Probability - Numericana

Heuristic Algorithms Applied to Multidisciplinary Design

Chess - Numericana
Bill Wall's Chess Curriculum - 400 Days, PDF, Chess

Squaring Squares, Rectangles and Triangles, Links
Chessbazaar Standard Walnut Maple Wooden Chess Board With Notation

Science on the verge
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por adulto (o preço varia de acordo com o tamanho do grupo)