Quadruples: Digits in circles must appear at least once in the surrounding four cells.
Giant Killers: Digits in cages may not repeat. In each cage, digits are grouped into pairs of adjacent cells - each cell used exactly once. Each pair is a two-digit number, read left-to-right or top-to-bottom. The sum of the two-digit numbers is given in the upper left corner of the cage.
f-puzzles: https://f-puzzles.com/?id=2pjm8x2z
CTC: https://tinyurl.com/2cdw5pcp
Solution code: Row 6 + column 4 (18 digits)
on 11. June 2022, 23:49 by SimplePurpleFrog
What a pretty puzzle! I loved the interaction between cages and the 2-digit totals. Great logic and great flow. Challenging enough.
The perfect symmetry is amazing, only subtly, invisibly, broken by the 2-digit totals.
on 11. June 2022, 22:54 by Jay Dyer
Really cool puzzle! I love the way it works out to solve despite the initial symmetry.
on 6. June 2022, 08:19 by kolot
Absolutely wonderful puzzle with very original logic! I loved it.
on 3. June 2022, 06:46 by peterkp
An interesting new rule set. Had to think for a while, but then it unfolded very nicely.
on 2. June 2022, 17:59 by Ragna
Fantastisch!
Das hat viel Spaß gemacht. :-))
on 2. June 2022, 10:01 by Leonard Hal
Absolutely amazing puzzle!Thank you.
on 2. June 2022, 09:15 by Leonard Hal
Absolutely amazing puzzle!Thank you.