Penrose tiles to Trapdoor Ciphers...and the return of Dr. Matrix |
k13-penrose_tiles_to_trapdoor_ciphers.and_the_return_of_dr._matrix.pdf |
Гарднер Мартин |
Perplexing Puzzles and Tantalizing Teasers (Math & Logic Puzzles) |
perplexing_puzzles_and_tantalizing_teasers_math_logic_puzzles.djvu |
Гарднер Мартин |
Puzzles A Book for Children |
sam_loyds_puzzles_a_book_for_children.pdf |
Лойд Сэм |
Puzzles from Other Worlds |
puzzles_from_other_worlds.djvu |
Гарднер Мартин |