Clever books, properly made.

Quipsome: quip, plus -some. A little witty, a little clever. We're a small independent publisher. Every book we make has one job, and we check it does that job before we print it.

The Christmas Puzzle Advent Calendar

Book 1 of Quipsome Mix, our themed puzzle series.

Every logic puzzle in it proved to have exactly one answer.

96 puzzles, 24 days, large print, 8.5 × 11 in paperback, out mid-November 2026.

Coming soon to Amazon.co.uk.

UK spelling throughout.

See inside the book

Four puzzles a day from 1 December to Christmas Eve, starting gentle and getting tougher as the day gets closer. Solve each day's marked square to open a door on the calendar, and by the 24th you'll have a hidden Christmas message.

Every book is checked before we print it.

Each kind of book has a standard, and we test it against that standard before anything goes to print. For our puzzle books the standard is simple: every logic puzzle has exactly one answer, and a solver has proved it.

More books, of more kinds, are on the way. Puzzles came first because we could prove them.

Watch a puzzle get proved.

Watch our solver work through the day 1 sudoku from the book, one step at a time, then count every way it could be finished.

Try it on the Puzzles page
Day 1 sudoku. Solutions: 1