Confederation Of Pentominoes
(Published on 30. November 2025, 06:32 by Will Power)
Solution code: Row 7.
Comments
yesterday, 12:35 by AroundTheClock
What a beautiful and clever construction! Merci!
on 4. December 2025, 00:04 by Tws
What an elegant ruleset! The combination with the pentominos and sum 25 is just fabulous. It's quite possible that I'll visit this composer more often.
on 2. December 2025, 20:44 by dzamie
That was neat! Box 7 threw me off a little at first, because I kept misreading the dutch whisper as a parity line.
The killer calculator on sudokupad is so useful.
on 1. December 2025, 08:00 by Martina
Very nice, though I didn't find a unique solution in the last step, solving boxes 7 and 9.
@Martina If you find that Row 9 Column 2 cannot be a 6, due to the Dutch Whisper Line, then everything flows uniquely from there. For you to find a second solution, at least one of the rules must not be followed correctly. Thanks for playing. Peace to you. -Will Power
@ Will: I have 3/4 in r9c2
@Martina I see. The 3/4 deadly pattern is resolved by the pentomino, which must sum to 25. Try looking to see if your pentomino in Box 7 adds correctly. Peace to you. -Will Power
OMG - duh. Of course, sorry.
on 30. November 2025, 20:48 by sparkymanu
Very nice set of rules, thank you for sharing ! I do agree that the Dutch whisper was not really needed
on 30. November 2025, 18:29 by nyxie
This was lovely, thank you! Only note is that I didn’t need the Dutch whisper line at all
on 30. November 2025, 14:20 by Ragna
Very nice and interesting puzzle. Thank you. :-)
@Ragna Looks like you're cranking them out very well. Thanks for the interest. I appreciate your support. -Will Power
on 30. November 2025, 14:19 by SennyK
Beautiful puzzle with a lot of very clever interactions, I never got stuck but still it wasn't to easy so be solved fast, you just keep on limiting the pencil marks, I really enjoyed it, thank you!
Only claim: I was treating red line as parity for the whole solve, luckily it was the last thing to resolve for me and i was surprised it was not correct, I think it would be better to use orange line for Dutch whisper :-)
on 30. November 2025, 08:43 by Prince Joffrey
Nice Sunday morning puzzle :-)
@Prince Joffrey Thank you for playing and commenting. Peace to you. -Will Power
