Sudoku123.caSudoku123.ca is home to the 'Sudoku challenge among friends and relatives', a multiplayer Sudoku variant with scores for 2 to 5 people.
パズルプラザ Cosmic PublishingCosmic Publishing is a Tokyo based company specializing in puzzle magazines and puzzle books. The website offers free trial puzzles as well as Cosmic's latest puzzle magazine, prizes and a company blog.
パズルゲームのHOBBY ROOMIntroducing various brain exercising games including mini games, Rubik's Cube and logic puzzles.
AgeOfPuzzles.comA web part of a puzzlebookweb project entitled Age of Puzzles. The project makes a comprehensive mosaic of puzzles created by different people in different time and at different places.
Puzzle MochalovLeonid Mochalov of puzzlemochalovlp.com is a Russian puzzle creator and author. Amongst his creations are puzzles such as Pyramid and Chess Cube as well as new types of riddles such as SQUAREWORDS, LABYRINTHNUMBER and EXPRESSLABYRINTH.
PUZTIMEPuztime is Gakken’s comprehensive online puzzle portal designed for puzzle lovers all over the world. offers a variety of puzzles including unique variations of Number Place, Illust Logic puzzles that reveal whimsical images when completed, Cross Sums with Chinese characters, mazes and much more.
World of CryptoPicsYariv's World of CryptoPics offers its own variation of Nonograms (PAP), downloadable software with a library of extra puzzles to play with it, and a page of CryptoPic and other puzzle links.
Magic Cube 4DMagicCube4D is a fully functional fourdimensional analog of Rubik's cube. The 4D face is composed of a 3 dimensional block of 3D stickers. The 4D cube has more potential positions than the total number of atoms in the universe.
PuzzleDepotPuzzleDepot.Com challenges your brain with free puzzles, Shockwave and Flash games, crosswords, logic games, IQ tests, trivia games and contests for prizes.
flooble :: perplexusSee if your brain is up to the task! flooble :: perplexus is a collection various puzzle genres, from simple logic questions and word tricks to indepth math problems like probability and geometry.
Robert Kraus’ MATH and LOGICAll puzzles on this site are Robert A. Kraus’ original work. Most of them are very difficult, and most require the use of a good spreadsheet program in order to be solved. It will take many hours, perhaps days, to solve each puzzle.
Interactive Mathematics Miscellany and PuzzlesMathematicians seek knowledge. In search of knowledge, they enjoy themselves tremendously inventing and solving new problems. Interactive Mathematics Miscellany and Puzzles makes an attempt to present mathematics as an evolving and entertaining subject in which an unsuspecting visitor may take an active part.
Puzzle SpaceFind information about language and culture independent puzzles and logic games that are published in puzzle magazines: Domino Logic, Number places, Battleship puzzles and more.
Janko.atThe largest place in the German language Web denoted to puzzles, riddles and other brain food.
MathpuzzleA great collection of Fair Dice, Iamonds, Eternity, Mazes, Atom Stability, Dissections, Kites&Bricks, Triangles, Retrograde, Pentagons, Prize Problems, Books, Links, Chaos Tiles, and Partridges by Ed Pegg Jr.
Puzzles.comFrom Tricky and Clever Puzzles through Baffling and Perplexing Illusions to Cognitive Toys.
Peter PuzzlePuzzle projects by Peter Grabarchuk, including puzzle products, books and publications, web puzzles and other puzzle activities.
