Pairing Order and Chaos
(Published yesterday, 15:59 by sujoyku)
Rules:
- Chaos Construction: Divide the grid into seven orthogonally connected seven-cell regions, and place the digits 1-7 once in each row, column, and region.
- Parity Sums: A clue outside the grid gives the sum of all continuously adjacent digits that are alternating in parity up to (and not including) the first digit that repeats parity.
Moreover, for each clue the digits contributing to its sum must belong to the same region and the fist parity-repeating digit must belong to a different region.
Example: The row 1235467 would have a sum clue of 6=1+2+3 from the left (3 and 5 are both odd) and a sum clue of 13=6+7 from the right (4 and 6 are both even).
- Region Counters: A digit in a square counts how many different regions intersect the indicated row or column (i.e. how many region have at least one cell contained in that row or column).
Here you can solve the puzzle online:
Solution code: Row 4 from left to right with the symbol "/" marking borders between regions (for example 12/345/67)
Comments
today, 08:37 by Snookerfan
Very nice, I loved the R4C5 clue. Thanks!
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Thank you for your comment, Snookerfan! It is great to hear that you liked the puzzle. Fun fact: R4C5 was the last clue I added when setting the puzzle. I am glad you enjoyed this finish.
Kind regards, sujoyku
today, 04:21 by lootyloot
Very smooth and fun. I love you sujoyku!
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Thank you for your kind words, lootyloot! I am glad that you had a smooth solve.
Kind regards, sujoyku
today, 03:32 by RedBarchetta
Superb!
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Thank you, RedBarchetta!
Kind regards, sujoyku
yesterday, 23:34 by sujoyku
Thank you for your kind comments, @Chaka, @damo_89, @Christounet and @SennyK! It is great to hear that you liked this variant.
Kind regards, sujoyku
yesterday, 23:27 by SennyK
Another great CC, good job! :-)
yesterday, 22:55 by Christounet
Enjoyed the rulesets. Thanks :)
yesterday, 22:23 by damo_89
Sehr gut. Vielen dank.
yesterday, 21:23 by Chaka
That was fun! I really liked the parity sum idea and when there is CC on board of a good puzzle I usually tend to be amazed. Thanks a lot for creating and sharing, Sujoyku!
yesterday, 19:12 by marcmees
very nice. Fun solve. Thanks
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Thank you, marcmees!
Kind regards, sujoyku
yesterday, 17:51 by amirs
Very clever construction. Resolving all the parity sums was really fun and smooth. The region counters were a bit trickier and made it a 3* for me.
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Thank you for your comment, amirs! I am glad that you enjoyed the puzzle. Also thanks for sharing your take on difficulty.
Kind regards, sujoyku
yesterday, 17:13 by wuc
And another beautiful 7x7 cc. Thx for all those great puzzles. 2.5* to me. Awesome thx.
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Thank you for your feedback, wuc! I am glad that you liked it.
Kind regards, sujoyku
