Sudoku Digits Lost... like tears in rain.

[@anaayoung9142]

What a lovely puzzle, I like it very much, these are my favorite constraints, and I like the first 3 rows rules!! Thanks 😊

[@drengskap]

Nice one - solved in 21:02. It all depends on spotting the logic to fill rows 2 and 3 with pairs of numbers, then using the constraints those pairs create to fill in numbers in the middle rows, much like a miracle sudoku. Once I realised that the whole puzzle was going to rope, it was simply a matter of filling in the triples in each box and then eliminating possibilities.

[@Pika250]

I loaded this bad boy on the Interactive Sudoku Solver, which then solved it uniquely without the "extra regions", just the anti-knight and anti-king rules -- that given 3 below row 1 _was_ the key.

[@francescopetracca374]

I love the concept that a puzzle rewards you immediately after spotting the right logic, and this is a perfect example of that. A really enjoyable puzzle, smooth and fun!

[@林老師-i5d]

12:10 for me nice roping puzzle

[@praematura]

I totally got lost on the first attempt of this puzzle, so stepped away and came back to try again; that 3 in box 7 was what I realized was missing. 😄 Completed in 7:18 on the second attempt, really amazing puzzle! Props to damasososos92 for it, and very nice solve by BremSter!

[@katherinegaymes]

the trick to the extra regions rule is that as you shift the boxes over, you are taking out one column of 3 digits and adding a column of 3 digits...which have to be the same digits to complete the set. vertical roping

[@mbakenemdusink9757]

As often with anti knight puzzles, it's way faster to figure out *per box* where a certain digit can be (corner pencilmarking). After filling the top 3 rows, concentrate on placing the 3s. This easily places 7 out of 9 3s, plus reveals some 1s and 7s. Placing the rest of the 7s and 1s and the last 2 3s is easy. By then, the rest of the puzzle is a piece of cake.

[@listey]

Neat puzzle. Not particularly challenging once you've figured it out, so I'd definitely suggest everyone gives it a go.

[@adenwellsmith6908]

Good one. Not seen that used before and it works well

[@boydegg]

38:58 ... what a brilliant, fun puzzle. Love the constraint set.

[@boydegg]

33:49 on my second shot

[@silentskyv6752]

09:48 for me. Pretty cool puzzle, thank you!

[@annkiitgoel5648]

Nice puzzle.. done in 10 mins..

[@donaldsnyder1543]

21:09 for me but had to watch about 15 mins of video before I got the concept. After that it fell nicely. Fun puzzle and interesting constraint. Wonder what else you could do with it. Informative solve.

[@GianniBergandi]

14:19 for me, cool one !

[@jeremyaaron3523]

Sounds like it's gonna drop off

[@MesaperProductions]

Nice logic train 40:50 for me

[@megaminxpll]

7:24 for me, once you spot the trick its an easy one.

[@RemiSchmitt-n2i]

Oops the solution is WRONG. Look at the 1 in row2, column2 and box 1. It is the upper left corner of a 3 by 3 box that has also a 1 in the lowerright corner. So that 3x3box breaks the rules. In fact there is no solution that satisfies the rules.

[@debrawilden1971]

The rules say that every 3x3 box section applies only to the 1st 3 rows, not the whole grid. Hope that helps.

[@victorfinberg8595]

something wrong with the wording of the rules "fill the top three rows" IMPLIES "ignore the other cells"

[@listey]

Surely superseded by "Normal Sudoku rules apply"?

[@sotek2784]

Yes, for the purpose of "every possible 3x3 box" ignore the other cells. But not for normal sudoku rules, or for antiking/antiknight. seems straightforward enough? (I would have phrased it as "every possible 3x3 box in the top three rows" myself but ... this seems pretty unambiguous.)

[@mbakenemdusink9757]

Yes, I also had difficulties understanding what was meant. An example could have helped. Like "the 9 cells in row 123, col 234 contain the digits 1-9 once each".

[@JohnSmith-wx6rw]

Totally missed the roping nature of the puzzle.

[@andyleighton3616]

To be fair so did I when I solved it. Somethings are easier to spot when you are watching someone else on a video.

[@sotek2784]

Weeeeeird puzzle.