About
Sandy Weisz
Puzzle maker in Chicago. Commissioner of The Mystery League. Publisher of Signals. Creator of Raddle.
I write puzzles for a living. Those can take the form of tabletop escape games for corporate team-buidling; live-action puzzle hunts for teams who want to romp around a building, park, neighborhood or museum; bespoke city-wide adventures that layer puzzles into your favorite spots; world-class escape rooms; marketing campaigns; and alternate reality games for an audience of thousands.
I started The Mystery League in 2014 after a career in web development. I teach puzzle design at the University of Chicago, I'm a member of the National Puzzlers' League, and I regularly contribute puzzles to Hey Riddle Riddle and to NPR's Sunday Puzzle.
I also have been authoring Raddle daily since February 2026, and I publish puzzle newsletters here at Signals.
I'm graduate of Northwestern University. I live in Edgewater, Chicago, with my wife, two teenage kids, and a dog.
Puzzles built for
- Alinea
- MIT
- The Art Institute of Chicago
- Cards Against Humanity
- Field Notes
- Museum of Science and Industry
- Chicago Botanic Garden
- Watsky
- Midwest Crossword Tournament
- Meta
- Zach King
- Amazon
- Airbnb
- IDEO
About Signals
Signals is where I post original puzzles, newsletters, and news from the League. It's also how you get access to advanced features for Raddle, my daily word-transformation game.
Signals is free and Raddle is free. Membership exists so you can support me and Raddle if you're able. This is what membership includes.
See membershipFrequently asked questions
- How do I update my credit card?
- Log in and open the account portal. If you run into any trouble, email me.
- How do I unsubscribe?
- Go here and toggle the subscription button.
- Why is it called Signals?
- The word “signals” nicely combines the act of communication and the act of finding meaning among the noise of a puzzle.
- I have another question!
- If you have any thoughts about any of this, please drop me an email.