Folding Paper Boxes

(Eingestellt am 1. März 2026, 16:59 Uhr von Kutsumi Hane)

Note:

A pentomino is a shape made of 5 unit cells, connected edge-to-edge.
There are exactly 12 distinct pentominoes. Among these, only the following 8 can be folded into an open cube (a cube missing one face):

Rules:

Latin Square

· Digits 1–6 appear exactly once in each row and each column.

Pentomino

· The grid contains six pentominoes, which do not overlap. The top-left cell of each pentomino is already given in the grid.

· For each pentomino, all digits are different.

· Each pentomino can be folded to form an open cube, and for the folded cube, the sums of digits on all opposite face pairs that exist must be 7.

Here you can solve the puzzle online: Solve on SudokuPad
The difficulty is probably 3 stars. I wish you joyful solving!

Lösungscode: Column 4

Zuletzt geändert am 2. März 2026, 18:11 Uhr

Gelöst von kublai, SKORP17, Shuhua Milk, Franjo, luoji

Komplette Liste

Kommentare

am 2. März 2026, 18:09 Uhr von Kutsumi Hane
Editor's note: The title has been modified and does not affect any content in the main text.

Zuletzt geändert am 2. März 2026, 10:51 Uhr

am 2. März 2026, 09:44 Uhr von Franjo
Thank you very much for creating and sharing this interesting puzzle. Folding pentominoes is a nice twist.
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Response from Kutsumi Hane:
Thanks for your kind words! Really happy you enjoyed the puzzle!

Zuletzt geändert am 2. März 2026, 08:53 Uhr

am 1. März 2026, 19:52 Uhr von Mattisahuman
What is different about this puzzle? I know the lid of each cube isn't necessary to find now but isn't the logic all the same?
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Response from Kutsumi Hane:
It's the same puzzle. I thought the original rules were too complicated, so I rewrote a new version. The original one has been marked as [Obsolete].
Really happy you enjoyed the puzzle!

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