
Clues by M and Grid by Bozzy. There’s mystery and mischief afoot in this puzzle. What is the theme? Who is ‘M’, the setter? What is the significance of the sprite in the background picture?
In aid of RNIB and BBC Children in Need

Clues by M and Grid by Bozzy. There’s mystery and mischief afoot in this puzzle. What is the theme? Who is ‘M’, the setter? What is the significance of the sprite in the background picture?

Clues by Boatman and Grid by Bozzy Enter the prize draw by 31 March. The background for this puzzle is a photograph of a hand holding a marble. This unconventional puzzle by Boatman uses a conventional 7x7x5 grid by Bozzy and commemorates a 550-year anniversary. The letters contained in the yellow cells can be rearranged to form… Read more Hints & Tips March 2025

This year we received six entries for the RPM Trophy and three for the World Championship (WC). The judges studied every grid – whose authorship had been hidden behind anonymising tags before being sent on to us. We may at some point have thought we could detect who – among regular entrants – was responsible… Read more Results of the 2024 3D World Championship and RPM Trophy competitions

Clues by Carpathian and Grid by Patch. This is the first review I have written for a puzzle by Carpathian and what a pleasure the solving experience proved to be.

Clues by Carpathian and Grid by Patch Enter the prize draw by 28 February. The background for this puzzle is a photograph of some beetroots. This puzzle by Carpathian uses a conventional 7x5x6 grid by Patch and commemorates the untimely death, 160 years ago, of a pioneer in a certain field, whose name is to be found… Read more Hints & Tips February 2025

Clues by Imogen and Grid by Calluna. This month starts off the year with a bang using a larger grid of 9 x 5 x 5 with 36 entries. There are also a lot of shaded cells randomly scattered on the hot levels that we’ll need to anagram into the Easter egg.

Clues by Komorník and Grid by Gin. Komorník is a major contributor to the success of the 3D Calendar in several roles and this is the third year in a row that he has presented us with a November Extra puzzle. I have vivid memories of last year’s offering,

Clues by Imogen and Grid by Calluna Enter the prize draw by 31 January. The background for this puzzle is a photograph of a pile of logs. I seem to see the dreaming spires and hear the sound of shorter and longer electrical tones… This puzzle by Imogen uses a conventional 7x5x5 grid by Calluna and marks… Read more Hints & Tips January 2025

Clues by Vlad and Grid by Calluna. By necessity, we use all 33 straight entries of a 7 x 5 x 5 grid this month. Plus… a little extra.
We are very sorry that this was necessary, but there are some corrections needed in the printed copies. The virtual calendar has been corrected and all individual puzzles published on the 2025 puzzles page will be correct. (If you downloaded a virtual calendar before 7 December 2024, you can download the latest version using your… Read more 2025 Printed calendar corrections