Indexing your way through an amazing Sudoku

[@originalelijah9541]

Hello, setter here! Thank you so much for solving! Basically the reason I titled the puzzle Start With 1, Not 0! Is because in programming when you index things the first item is usually index as being in the 0th position but obviously in a sudoku we start with 1 and not 0 lol (also the smarter among us will have to forgive me if I’ve butchered the terminology here I don’t know a ton about programming and having done any in a very long time)

[@boydegg]

Excellent puzzle, thank you.

[@victorfinberg8595]

I'm glad you cleared that up. I entered a lot of zeros and got nowhere. Just kidding; here's a delayed thank you for making this puzzle for us. Ah, now I get it. Start with BOX 1.

[@SnowTheJamMan]

I find the "!" part of the title funny cause ! is the symbol for factorial and 0! is 1, so the title basically says "Start with 1 not 1" haha

[@boydegg]

85:16 ... got there in the end. I enjoy this rule set.

[@ocaly]

holy moly thats a long time. I wouldn't have gotten the attention span to last an hour tops.

[@_raumplaner6575]

Almost at 1,000 subs. Very nice. And thanks for releasing the entropic lines pack on your channel.

[@praematura]

Finished in 22:14, really fun puzzle! The 3-digit killer cages in the 159 columns were a really nice break-in, and found that many of the other cages could be whittled down pretty fast. Loved this one!

[@billbliss7407]

Great video, and thanks for sharing about the spreadsheet/calculator! That's awesome!

[@donaldsnyder1543]

Took me bout 45 mins , but eventually got it done , didnt really know about the indexing trick that helped a bit.

[@victorfinberg8595]

This is an interesting puzzle. Earlier, i would have looked at the cages, found nothing, then looked at cage combinations, still found nothing, and given up. Today is the first time i am applying the indexing trick Bremster described at 5:30. I used that a couple of times, and after that, it's fairly smooth sailing. There are a couple of tricks that are specific to the 159 ruleset, but the standard sudoku is all basic.

[@zincfive]

Nice puzzle and solve!

[@Jindychick]

Great puzzle and fun solve:) I don't know what it is about these sort of indexing puzzles, but around half-way through my brain has a moment where I don't trust my pencil marks and need I go over a bit of 159 logic again. It might be because they flow so smoothly that it seems to good to be true

[@bobfish7699]

Good showcase puzzle for the 159 rule. Took me while but not in a rush today and fun to solve.. I think the title of the puzzle refers to a Binary Search Algorithm, which is something heavily used in Database engines, which of course also use indexing...

[@ocaly]

I love that you found a really complicated way of proving 5 could not live in the 6 cage so it's a 42, BUT you didn't continue/see the logic so you found it by sudoku almost 15 minutes later (31:10). I feel like if you would've seen it the solve would be much quicker and smoother..

[@ocaly]

14:19

[@Jodawo]

Since indexing is computer related and binary is the language of computers maybe 1's and 0's would normally be used. Since it's Sudoku we start with 1 not 0.

[@efa666]

In binary a Not 0 would be 1.

[@TheBiggreenpig]

Indexing starts at 0 not because of the "1s and 0s" but because the simplest index is an offset from the starting address. And the first addressable memory is at the starting address, which is of course at the location of (start + 0). If addressing started at 1, then there would always be a wasted unit of memory.

[@roelrijkens4061]

but it is 0! (0 factorial) which is equal to 1.

[@stegra5960]

I'm so clumsy. Did all the maths at the start to get going then had to rewind a couple of dozen moves because I put 36 in a 10 cage. Didn't help matters by misreading the 9 cage as a 6 in box 7 either.

[@annkiitgoel5648]

Nice puzzle... bit confusing in start... done in 26 mins

[@MusikCassette]

but 1=0!