Area 81
(Published on 31. January 2023, 19:44 by mathpesto)
This is based off of David Millar's Area 51 puzzles, which combine cave, masyu, and slitherlink. I've combined it with sudoku, and the masyu clues double as diagonal kropki clues. Also shout out to Nordy for the title idea. Enjoy!
Rules:
Normal Sudoku rules apply.
Area 51: Draw a non-intersecting loop along some edges. Aliens are inside the loop and cacti are outside the loop.
Slitherlink: A digit in a white square indicates the number of loop pieces around that cell.
Cave: A digit in a white circle is inside the loop and indicates the number of cells inside the loop it sees horizontally and vertically, including itself. Cells outside the loop obstruct vision.
Masyu: A white dot has the loop pass through it with a straight line, and a 90-degree turn on one or both of the previous/subsequent intersections along the loop. A black dot has the loop pass through it with a 90-degree turn, and with straight lines passing through the previous and subsequent intersections along the loop.
Kropki: Diagonally adjacent cells joined by a white dot contain consecutive digits and by a black dot contain digits in a 1:2 ratio.
Solve:
Solution code: Column 6 (top to bottom)
Comments
on 3. April 2024, 21:11 by yttrio
Super cool hybrid with a great flow to the solve path!
on 9. October 2023, 14:47 by Krokant
This gets much easier if you remember ALL the rules ... :)
Cute theme. I had a blast visiting Area 81.
on 26. April 2023, 07:22 by TJReds
Beautiful puzzle! At first I thought there were too many rules but how you made them interact it flowed very well!
on 7. February 2023, 16:03 by dumediat
This is a stunningly beautiful yet approachable puzzle. This has some of my favorite puzzle types, and they work together incredibly well. Thank you so much for sharing!
on 7. February 2023, 00:10 by codewizard
I love these puzzles. It makes you feel happy about the world, that they exists. Thank you!
on 6. February 2023, 03:57 by Myxo
Awesome puzzle, loved it!
on 5. February 2023, 19:53 by Agent
Very nice approachable puzzle! The constraints work together really well.
on 4. February 2023, 23:07 by Bootenks
Awesome and joyful puzzle.
It was a pleasure to solve it. :)
on 3. February 2023, 16:57 by KNT
very nice approachable combination, thanks
on 1. February 2023, 13:14 by mercierus
Fun puzzle, thank you!
on 1. February 2023, 03:58 by mnasti2
Haven’t done most of these rule types before but it was gentle enough yet interesting with neat interactions!
on 31. January 2023, 20:20 by Nordy
This fabulous ruleset results in a super fun, logically-diverse solve. Highly recommend!
