Puzzles Archive
I really like puzzles! The Riddler (now The Fiddler) gives me a chance to explore something new each week — sometimes analytically, sometimes computationally, sometimes artistically.
“Fiddler on the Proof” offers weekly mathematical puzzles as well as other discussion about the puzzling community. The Fiddler is a spiritual successor to The Riddler column at FiveThirtyEight, which ran for eight years under the stewardship of Zach Wissner-Gross and Ollie Roeder.
— The Fiddler on Substack
Below is a collection of my solutions, spanning the FiveThirtyEight era and beyond.
2023
Date | Puzzle | My Solution | Code |
---|---|---|---|
Jan 27 | Five-letter guessing game | blog | — |
Jan 23 | Drone vs. scooter metric | blog | — |
2022
Date | Puzzle | My Solution | Code |
---|---|---|---|
Dec 16 | Gift exchange chaos | blog | — |
Oct 21 | Mexican Lottery | blog | — |
Oct 14 | Birthday collisions | blog | — |
Sept 16 | Longest anigram | blog | — |
Sept 9 | Cookie sheet packing | blog | — |
July 1 | Two Astronomers’ Towers | — | |
June 24 | Goat tower parking | — | |
June 17 | Elevensies / urn probabilities | — | |
May 13 | Nonconformist dice | — | |
Jan 7 | Triangle trek | — |
2021
Date | Puzzle | My Solution | Code |
---|---|---|---|
Apr 23 | Random voting | — | |
Apr 16 | Lunar phase speed | — | |
Apr 9 | One-way out | code | |
Apr 2 | Outthink the Sphinx | — | |
Mar 26 | March Mathness | — | |
Mar 19 | Square residues mod 10 | — | |
Mar 12 | Biggest pie | — | |
Mar 5 | Batting .299 | — | |
Feb 19 | Riddler Jenga | (link coming) | — |
Dec 13 | Fencing Relay | — |
Older Solutions
Some earlier solutions are still available at my old site. Others may eventually be added here as I find time to polish them.