Loyd

#	Item
131	THE WORLD PUZZLE NEWSLETTER 6 Add to Reading List Source URL: www.worldpuzzle.org Language: English - Date: 2012-04-18 04:59:09 World Puzzle Championship NP-complete problems Puzzles Will Shortz Crossword Wei-Hwa Huang Helene Hovanec Sam Loyd American Crossword Puzzle Tournament Games Leisure Gaming
132	PDF Document Add to Reading List Source URL: www.indiana.edu Language: English - Date: 2009-05-23 23:43:33 Sam Loyd Combination puzzles Mechanical puzzles NP-complete problems Fifteen puzzle Tangram Recreational mathematics Henry Dudeney T puzzle Games Mathematics Puzzles
133	PDF Document Add to Reading List Source URL: www.mathematica-journal.com Language: English - Date: 2007-07-31 15:03:27 Theoretical computer science Sam Loyd Wolfram Research Ed Pegg Jr. Nikoli Sudoku Puzzle Numberlink Mathematica Mathematics Logic puzzles Mathematical software