Pentominous (Borders) by Murat Can Tonta
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a letter entry mode.)
Theme: Heart-Shaped Box
Author/Opus: This is the 165th puzzle from our contributing puzzlemaster Murat Can Tonta.
Rules: Variation of Pentominous rules. Some borders between pentominoes are already drawn.
Difficulty: 3 stars
Time Standards (highlight to view): Grandmaster = 3:00, Master = 4:30, Expert = 9:00
Solution: PDF
Note: Follow this link for other Pentominous puzzles. If you are new to this puzzle type, here are our easiest Pentominous to get started on. More Pentominous puzzles can be found in the Plenty o’ Pentominous series by Grant Fikes and Murat Can Tonta and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.
It felt weird. I got a (the?) solution, by some sort of reasoning, without any trial and error. Or did I just get lucky? I’m not sure.
It felt weird. 🙂
Pentominous, especially the Borders variation, is one puzzle that one can try this fun exercise with – solving it in the head, no paper no applet. I tried and it worked just well. Nice flow. The repeated bits of logic around the bottom of the box felt a lot more cute than they would have, for instance, in a fillomino.
The theme has more to it than meets the eye. I have just as many goodies falling out of the (gift) box as I can use. Or was it unintended?
Very enjoyable!