Mentagy Puzzle. Where no mind has gone before.

Game Play

Game Rules / Objective

Insert the letters of the alphabet A through Z into the grid according to the rules below.

For each new puzzle there are seed letters already in place which cannot be moved.

Rule 1: Each new letter that you place must be either next to, directly above, directly below or on a diagonal adjacent to the previous letter of the alphabet; i.e., "D" must be next to "C"; "C" must be next to "B" etc… [ADJACENT RULE]

Rule 2: Once you place a letter in any 2x2 Box, you must finish filling in that Box before placing a letter in a new Box. [BOX RULE]

Rule 3: Any row or column may contain only one vowel (A, E , I , O , U or Y) [VOWEL RULE]

Welcome Guest Player

Play as a guest

While membership has it's benefits one does not need to sign up to play Mentagy. Follow the link below to select a puzzle. Choose from beginning, intermediate, advanced or try our expert level puzzles. After playing one of our mind expanding strategy puzzles you can save your score or just play another puzzle. Have fun and good luck.

Play as a member

Signing up for membership is very easy. All that is needed is for you to type in your email address.

Membership Benefits
  • Posting feedback
  • The feedback is available for members to post their general comments about each puzzle.

  • Notification
  • If you wish, you can be automatically notified when a new puzzle is posted.

  • Recognition.
  • When you solve a puzzle you automatically receive a score based on the level of the puzzle and how fast you solve it. If you score well your handle will be posted in the Top Ten list for that puzzle.

  • Sign-Up And Play
  • Already a Member. Sign On

Top Ten Players

  • Watergoat [Score 1053]
  • Puzzler [Score 1041]
  • annabanana [Score 1027]
  • Watergoat [Score 992]
  • TampaMom [Score 799]
  • Puzzler [Score 791]
  • pattico [Score 786]
  • TampaMom [Score 762]
  • TampaMom [Score 638]
  • TanuvasaMama [Score 560]

T=Time L=Level C=Checks E=Errors

© 2014 Mentagy

Contact & copyright info

Meet Allyn at the Tampa Bay Maker Faire

Saturday March 23rd. Allyn will have game playing opportunities at his exhibit and will be providing a workshop on "The science of Neuroplasticity: How doing mental activities, like puzzles and games, creates new networks in your brain, at any age." More about the event... Associated Photos at Maker Faire...

Mentagy Receives Multiple Awards for 2012

An award winning puzzle.

As Mentagy gains exposure more and more users are becoming addicted to this puzzle as it appeals to all ages, kids, teenagers, adults and seniors who want to keep their brains sharp. Solving the puzzles can be very tricky, but don't worry, the first ones are easy and will get you going quickly.

Puzzle Created by Champlain College Faculty Member Wins Various Awards

Champlain College Continuing Professional Studies Professor Allyn Kahn, of New Port Richey, FL, online instructor of math, statistics, philosophy and critical thinking since 2000, has received multiple awards for the puzzle he developed to help his chess students improve their decision-making. The puzzle, Mentagy, is now available as a game board, puzzle book, and on a digital puzzle platform. read complete article...

CreativeChild.com reviewers declare Mentagy 2012 Puzzle of the Year

Creative Child Magazine's Awards Program is unique in that all products submitted are reviewed by parents, educators and professionals alike. Products are not reviewed by any one person. They are reviewed by many people-the very people who purchase them. Play Mentagy here for Free


Mentagy receives Tillywig 2012 Brain Child Award

In order to be selected as a Tillywig award winner, the toy/game must be determined by our testing team to have high entertainment and/or educational value. When assessing these values, our focus is on evaluating many factors.

The Tillwig testing team finds Mentagy delivers a high level of face-to-face playful interaction

Tillywig reviewers stated Mentagy looked and felt well-made. Mentagy receive a high rating for effectively promoting a high level of face-to-face playful interaction Tillwig also felt our puzzle inspired creativity during use/play and fueled the imagination. Many reviews recognized Mentagy for encouraging new ways of thinking and/or promoting physical development.

Facebook followers applaud creator Allyn Kahn for a job well done,

Karen Porter and Bonite Halpers both say "Congratulations Allyn!" Order the Paperback Book OR The Deluxe Wooden version

Here's what Tillywig had to say

Your brain will thank you.

If you've been pondering getting your thinking cap out of the closet and dusting it off, fear not. Mentagy will have you flexing your mental muscles in no time. It is a series of puzzles whose solutions each use all the letters of the alphabet in a grid consisting of nine 2 X 2 boxes. There are puzzles ranging from beginner to advanced. Each new puzzle has different blacked out cells that cannot be used and different given letters in place at the outset. Your challenge is to fill in all the empty cells with letters such that each new letter is adjacent to the previous letter of the alphabet and each row and column, once you're done, contains exactly one vowel. Also, once you place a letter in any 2 X 2 box, you must fill in the remainder of that box before proceeding to a new box. How challenging you find Mentagy will shift over time. As you gain experience, you'll happily move to the more difficult puzzles. Regardless of your level, one thing is certain - logic and reasoning will get you everywhere. This set includes a paperback book loaded with Mentagy puzzles that can be solved right on the page, BUT, it is so much more fun to solve them in 3 dimensions using the hardwood game board and pieces that are included. Your brain will thank you! Tillywig 2012 Award Winners

Hey IPhone / IPad Users

In case you have not heard, the new award winning Mentagy ebooks on the Puzzazz iPhone app are doing well. If you have an Apple device, please go to the App store and download the free app at Puzzazz. You can try over 100 different kinds of puzzles there. During the first two weeks of the Puzzazz App launch, the Mentagy Challenge eBook consistently ranked among the top-ten in-app purchases. Several times Mentagy Challenge was at the Number 3 spot! Read more / Download App


More great stuff about mentagy

How to play Mentagy, Customer testimonials, Video links, and more...

Merchandise (Paperback book / Deluxe wooden puzzle)

Play Mentagy Online (sign up, solve puzzle, get scored, make top 10)

Download a practice puzzle (same as above without score and rating)