I believe maths is something that can provide a source of enjoyment, a way for people to express themselves, and a way to bring people together.
So, I like to collect and create games, puzzles, and art activities. Here are some that you might find interesting.
| Favourite One Hundred Factorial puzzles | A collection of eight favourite puzzles that have been used at One Hundred Factorial. |
| Puzzles created by David K Butler | A collection of puzzles created by me, David K Butler. |
| Numbers Game | A modified version of the Numbers Game from TV’s Numbers and Letters (or Countdown) that we play every One Hundred Factorial session. |
| Logic puzzles that are fun to do collaboratively | These logic puzzles (which I did not design myself) are used at One Hundred Factorial for group problem-solving: Jigoku , Addoku (aka Killer Sudoku) , Galaxy , Slitherlink Skyscrapers Star Battle Undead (aka Haunted) |
| 16 Sudokus | A set of 16 sudoku puzzles with a connection. |
| Quarter the Cross | An open-ended fraction and area puzzle with a creative flair. |
| 4-Dimensional Noughts and Crosses | A two-player game invented by me that requires spatial thinking in four dimensions. |
| Which Number Where | A two-player game invented by me that is a bit like battleships and a bit like Guess Who, and involves careful logical deduction. You can read a blog post about it here. |
| Digit Disguises | A two-player game of algebraic deduction invented by me, that is a little bit like battleships and a little like Cluedo. You can read a blog post about it here. |
| Number neighbourhoods | A two-player game of analytic deduction invented by me. It uses the concept of intervals on the number line, and is a little bit like battleships and a little like Cluedo. You can read a blog post about it here. |
| Home in One Piece | A game of strategy involving play dough, invented by me. |
| Giant SET | Cards for the game SET that can be printed on A4 paper to make giant cards. (SET originally designed by Marsha Falco and published by SET enterprises) |
| Bodyscale Prime Climb | A version of the game Prime Climb that can be played with humans as the playing pieces. (Prime Climb originally designed by Dan Finkel and published by Math4Love.) The cards can also be printed 32 to a page to create a deck of small cards that you can arrange on a table. Download the cards and spinner template , and a version of the rules . |
| Extended Prime Climb cards | A version of the Prime Climb cards (based on the board game originally designed by Dan Finkel and published by Math4Love) that goes from 1 to 144 with an extra colour for eleven. These can be printed 32 to a page to make an extended deck of cards to arrange on a table. |
| Jenga Views | Thirty-nine puzzles of increasing complexity where you need to build a structure from Jenga blocks to match the three views (orthographic projections) given. If you want to make your own, the template is in this SVG file (which you can edit with Inkscape). (The original version of this was made by JD Hamkins using differently-sized blocks, and I have redrawn it to use Jenga blocks and added a lot of my own original challenges.) You can read a blog post about the set of puzzles here. |
| Nomic | A game invented by Peter Suber where players change the rules as they go by majority vote. |
| Hsif | A game invented by me that is like the traditional game Fish, but backwards. |
| Aperiodic monotile print-and-cut | Printable outline for an aperiodic monotile created by Smith, Myers, Kaplan & Goodman-Strauss in 2023 . |