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myopia and walls
&V=myopia,walls.
This intriguing variant puzzle was sent by 5381:
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The hex grid has interesting consequences for the genre, well-used by PinkHoodie:
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Acknowledgements and Changes
2023-02-11 A lingering corruption in the encoding of some of the puzzles was corrected - thanks Karoo for detecting it
2023-02-14 Extra parameters were added to adapt the error checker to different tetromino sets, for example, the double tetromino set,_a_suggestion_by_dohz
2023-02-15 The monomino aux mark was added, a suggestion by Karoo
2023-10-11 dohz found a non-uniqueness in one of the latest puzzles, now corrected. Thank you!
2023-11-02 PinkHoodie found a palette regression, now fixed - thank you!
2024-01-25 justkirb modernised the rule panels - thank you!
2024-03-19 5381 sent an myopia wall Tetro Stack (prompting a small fix to the walls variant, and erasing one wrong puzzle) thank you!
2024-03-19 Variant hex now works with Tetro Stack and Pentomino Puzzles, a suggestion by 5381
2024-04-05 PinkHoodie explored the variant hex with a nice puzzle - thank you!
2025-02-11 Encoding Tetro Stack parameter encoding and display was upgraded, in line with other genres. Please consider updating urls and pictures.
2025-04-06 Absent cells can now also be used as support surface, in line with genres such as Water fun and Gravel. The border is now thick to emphasise this. Thanks PinkHoodie for bringing forward this issue and sending a good unit test case url.
2025-04-06 puzzletters PinkHoodie sent 1 Tetro Stack (classic) puzzle - danke!