Monday, 30 September 2024

Menderbug

Mathsy Monday is a great excuse to make a puzzle in my favourite arithmetic genre, Summon.

Summon has been covered once before, by Freddie: Archive: Wednesday, 11 May 2022

Rules: Place numbers into some cells such that cells with the same digit don’t touch, not even diagonally, and each region contains exactly the list of digits outside the grid. Groups of consecutive cells containing digits in a row or column form numbers by reading the digits left to right or top to bottom, respectively. Clues outside the grid indicate the sum of such numbers in the corresponding row or column.

📝 Notation tip 📝: Use shading (Surface mode in Penpa+) to indicate cells which you know must or cannot a digit (as shown in the example solution).

Score a Speedy Sloth 🦥 by solving the puzzle in 3:30 or less!
Collect a Quick Crab 🦀 by completing the puzzle in 7:00 or less!
Finish the puzzle in your own time to become the proud owner of a Summer Tanager 🐦!

Example (Penpa+) from WSPC 2019 IB, adapted by Freddie: https://tinyurl.com/2cpt8egc
Puzzle (Penpa+): https://tinyurl.com/26kxkcag