![Perilous Problems for Puzzle Lovers: Math, Logic & Word Puzzles to Challenge Your Brain (Alex Bellos Puzzle Books): Bellos, Alex: 9781615197187: Amazon.com: Books Perilous Problems for Puzzle Lovers: Math, Logic & Word Puzzles to Challenge Your Brain (Alex Bellos Puzzle Books): Bellos, Alex: 9781615197187: Amazon.com: Books](https://images-na.ssl-images-amazon.com/images/I/81GyehiUYhL._AC_UL210_SR210,210_.jpg)
Perilous Problems for Puzzle Lovers: Math, Logic & Word Puzzles to Challenge Your Brain (Alex Bellos Puzzle Books): Bellos, Alex: 9781615197187: Amazon.com: Books
![Can You Solve My Problems?: Ingenious, Perplexing, and Totally Satisfying Math and Logic Puzzles (Alex Bellos Puzzle Books): Bellos, Alex: 9781615193882: Amazon.com: Books Can You Solve My Problems?: Ingenious, Perplexing, and Totally Satisfying Math and Logic Puzzles (Alex Bellos Puzzle Books): Bellos, Alex: 9781615193882: Amazon.com: Books](https://m.media-amazon.com/images/I/51miR3QartL._AC_SY780_.jpg)
Can You Solve My Problems?: Ingenious, Perplexing, and Totally Satisfying Math and Logic Puzzles (Alex Bellos Puzzle Books): Bellos, Alex: 9781615193882: Amazon.com: Books
![Alex Bellos on Twitter: "A new puzzle launches in today's print edition of the Guardian. Sandwich Sudoku is a very entertaining sudoku variant. A new craze! https://t.co/VIeOlcBfzu https://t.co/1yaZ38L4UC" / Twitter Alex Bellos on Twitter: "A new puzzle launches in today's print edition of the Guardian. Sandwich Sudoku is a very entertaining sudoku variant. A new craze! https://t.co/VIeOlcBfzu https://t.co/1yaZ38L4UC" / Twitter](https://pbs.twimg.com/media/D9FTTPnX4AA8Pih.jpg:large)