Filter
Huvudbry & frågelekar
Filter
What is a tangram? It is more easily seen and understood than defined in words. But to put it briefly, it is a geometric dissection puzzle in which seven standard pieces (five …
"The most original, most profound, and most humorous collection of recreational logic and math problems ever written." -- Martin Gardner, Scientific American"The value of the book …
99 puzzles built around the chessboard. Arithmetical and probability problems, chessboard recreations, geometrical puzzles, mathematical amusements and games, more. Solutions.
This is, quite simply, the best and most popular puzzle book ever published in the Soviet Union. Since its first appearance in 1956 there have been eight editions as well as …
Sam Loyd (1841-1911) was America's greatest originator of puzzles. For more than 50 years, his ingenious posers, appearing in innumerable newspaper and magazine articles, stumped …
Choice puzzles by one of America's most ingenious creators of mathematical entertainments, ranging from simple exercises in arithmetic to complex calculus problems
Filled with eccentric characters, surrealistic illustrations, and humorous situations, 80 mind-bending problems will test the powers of logic and ingenuity of even the most avid …