A NEW TWIST ON A POPULAR PUZZLE CUBE! Invented by Piet Hein, the Soma cube is one of the most famous mechanical puzzles in the world. The traditional challenge
No amateur or math authority can be without this ultimate compendium of classic puzzles, paradoxes, and puzzles from America's best-loved mathematical expert. 3
Mathematical Properties of Sequences and Other Combinatorial Structures is an excellent reference for both professional and academic researchers working in tele
"The Tangram is one of the most ancient puzzles in the world, focused on deciphering silhouettes composed with the seven pieces. This book presents a collection