Hillsboro R-3 School District Gifted and Talented Education Program

Brain Teasers & Puzzlers

Brain Binders can you fold this page, into that shape, red on one side, yellow on the other? Not as easy as it sounds...

Brain Boosters Weekly challenge puzzle, plus great archives

Brain Food Give your mind a work out on our devious collection of puzzles

Braingle over 12,000 brain teasers, riddles, logic problems, quizzes and mind puzzles...

BrainQuest It's OK to be smart!

Brain Teasers A new teaser every week

TheCase.com for Kids Mini-mysteries to solve, scary stories, magic tricks, and contests

EPGY K8 Puzzle Page although only EPGY students can compete, these are still great puzzles for everyone!

The Grey Labyrinth some of the toughest puzzles around, plus archives...

Griddlers.netpaint-by-number puzzles to solve online or offline

Harry Potter Games & Puzzles

Knossos Games Terrific brain teasers, featured on Johns' Hopkins Imagine magazine!

Labyrinth Make your own mazes, and solve them in 3D!

Mastermind interactive version of traditional logic game. Choose 2 to 6 colors, and play!

MazeWorks download interactive (Java) games, including Fiver, Peg Solitaire, and more...

Mystery Masters Logic Puzzles puzzles and grids, to solve...

Netives Marbles, Mahjongg, Gems, Copycat, Plumber Pete and more!

Puzzlemaker Make your own mazes, word searches, math squares, cryptograms...

Puzzle Parlor

interactive GamePuzzles

Puzzle Playground great mind benders, with new puzzles every two weeks, courtesy of Thinkfun (Binary Arts)

Quiz Hub interactive games, puzzles, quizzes and more

SAT Question of the Day fun, and good practice!

SET, Quiddler and Xactika check out the Puzzles of the Day!

The New York Times SET Puzzle 4 puzzles a day...

Tangram Ancient Chinese moving piece puzzle, including history, downloads, links...

Tower of Hanoi interactive version of the traditional puzzle

TextTwistrearrange the letters and make as many words as you can

WebSudukoNumber puzzle, but no math required... trillions of puzzles!

Word RacerTM up to 8 players compete by creating words from various grids made up of letters...

Logic & Critical Thinking

Conceptis Puzzleslogic puzzles, including pixel puzzles, dot-to-dots, Sudoku, Kakuro, Battleship, and more

Kakuro.com Free daily Kakuro puzzle!

Mission: Critical an interactive tutorial for critical thinking

Mystery Master Logic Puzzles traditional logic puzzles, with printable solving grids

Simon Tatham's Portable Puzzle Collection a collection of small computer programs for one-player puzzle games (PC, Unix, Mac)

Optical Illusions

77 Optical Illusions & Visual Phenomenabut better than the illusions, are the terrific explanations of each one!

Dr. Angry and Mr. Calm an interesting illusion...

Dynamic Optical Illusions intriguing selection of old, new and exclusive optical illusions

IllusionWorks Welcome to the fascinating world of illusions...

Interest Optical Illusion is it moving, or still?

Magic Eye stereograms, construction and more, plus great links!

The Truth About the Spinning Dancer the illusion, explanation, and hints to see both ways!

Three-dimensional street paintings, various artists (below), plus comments from Snopes...

Kurt Wenner, Master Street Painter ex-NASA turned artist, phenomenal three-dimensional street paintings, and more!

Julian Beever's street paintings

World of Escher Learn about Escher's art, plus Penrose's puzzles, and submit your own or vote for your favorite modern tessellations!

Puzzlers