Puzzles

Just a little (kinda hard) puzzle to keep you entertained if you're experiencing ridiculous weather like I am. Ordinary Sudoku Rules Apply. Additionally: 1. Cells with gray boxes must contain even digits 2.

Just a little (kinda hard) puzzle to keep you entertained if you're experiencing ridiculous weather like I am. Ordinary Sudoku Rules Apply. Additionally: 1. Anti-Knight Rules Apply: Cells within a knights move of one another cannot contain the same digit Renban Rules Apply: Cells on a magenta line must contain consecutive digits (in any order) German Whisper Rules Apply: Adjacent digits on a green line must differ by at least 5 That's it!

I was surprised and delighted when putting together this puzzle. I hope you will be surprised and delighted too! Ordinary Sudoku Rules Apply. Additionally: 1. Arrow rules apply: Digits along an arrow sum to the digit in the arrow's circle.

I just sat down and made this. I've been working on something a little more fun, but wanted to play around in the meantime. Ordinary Sudoku Rules Apply. Additionally: 1.

I've had this break-in idea for a while now. This is just a fun little puzzle. Nothing too extreme. Ordinary Sudoku Rules Apply. Additionally: 1. Arrow rules apply: Digits along an arrow sum to the digit in the arrow's circle.

I've always wanted to create a puzzle that makes heavy use of negative constraints. Let me know what you think of this puzzle. It might be an acquired taste. Ordinary Sudoku Rules Apply.

Did you folks every draw this weird S thing growing up? This was a huge part of middle school culture in the US (at least for me). Here's the three steps for drawing this.

I think this has an interesting solve path. I hope you enjoy :) Please let me know what you think. I always appreciate the comments! Ordinary Sudoku Rules Apply. In addition: 1.

I've had this idea for a bit now and I finally got around to making the puzzle. I'm happy with it. Let me know what you think :) Ordinary Sudoku Rules Apply.

Here's an easy little puzzle. I hope you enjoy. Ordinary Sudoku Rules Apply Cells along the main diagonal cannot repeat Cells in shaded boxes are even Digits on the thick lines form palindromes The sum of the digits along the indicated diagonals and in the outlined boxes have the same sum and this sum is greater than 30 That's it!

As I always say, it's been a while since I've made a puzzle. Here's a fun little one. I hope you enjoy. Ordinary Sudoku Rules Apply Additionally, cells that appear in the same position relative to their box form a set of the digits 1-9 (Disjoint Groups).

As I always say, it's been a while since I've made a puzzle. Here's a fun little one. I hope you enjoy. Ordinary Sudoku Rules Apply In addition, a snake of orthogonally connected cells goes from the upper left green square to the bottom right green square.

It's been quite a while since I've made a puzzle because I've been so busy, but I've been really enjoying some of the gorgeous creations since my last submission. This is just a soft puzzle to share.

This is the second puzzle I have made with this particular pattern. This one is much harder (in my view) and a much nicer application of the pattern especially given that this is a pure killer sudoku.

The proper name for this puzzle's constraint probably has something to do with taxicab numbers, but I prefer "long knight." Essentially, this is a knight's move constraint with an extra cell.

Here is a potentially easy puzzle. The intention is for you to use the shifted version of Phistomefel's theorem. @Narayana refers to Phistomefel's theorem as the Four Lines and Four Boxes theorem (FLFB) which I prefer as well.

The good news is that I cut all of my sudoku puzzles into jigsaw puzzles. The bad news is that I accidentally got them all mixed up. Here are nine pieces from nine different puzzles.

Here is a very small and potentially very easy puzzle. The intention is for you to use the 8x8 version of Phistomefel's theorem. Which, as far as I know, is a novel concept.

Here is another decoding puzzle. Before you begin, it's important to note that this type of puzzle requires a firm grasp of the English language. I sincerely apologize if this excludes you.

No complicated rules. Enjoy :) -Ordinary sudoku rules apply. -Killer Sudoku Rules apply. Digits cannot repeat in cages and must sum to the number in the top left (if given).

When I was young, I was afraid of dimly lit mirrors because I would always see faces in them. It turns out I'm not alone and there's science behind that. You can read about it here.

This puzzle is patterned after a square lattice or a plain weave. -Ordinary sudoku rules apply -Partial killer rules apply (digits in cages cannot repeat and must sum to the total given by the cage) -Sandwich rules apply (the numbers outside the grid indicate the sum of the digits between the 1 and the 9 in the indicated row or column) Here is the puzzle.

Every puzzle I have posted so far has been an attempt at making inventive new variants. This is just a partial killer-little killer puzzle. -Ordinary sudoku rules apply -Partial killer rules apply (digits in cages cannot repeat and must sum to the total given by the cage) -Little Killer rules apply (digits outside the grid indicate the sum of the digits along the marked diagonal.

I had an unsolved 1 star sudoku puzzle that I accidentally left folded up on my desk. I asked someone to scan it and email it to me but they didn't unfold it before doing so!

My previous puzzle with this theme seemed to go over pretty well, so I've made another. Again, this one is not too terribly difficult, but I think quite fun. -Ordinary sudoku rules apply.

As far as I know, this is a novel variant with some very interesting logic. -Ordinary sudoku rules apply. -Little killer rules apply. The arrows indicate the sum of the digits in the direction of the arrow.

This is an extremely easy coffee break puzzle, so it should be fun way to spend a few minutes. Ordinary sudoku rules apply. In addition, there are a few cages which once filled can be decoded.

If I could make days last forever If words could make wishes come true I'd save every day like a treasure and then I'd play sudoku with you Enough of that.

This is the second in a series of puzzles that are played on a Klein Bottle. If you like this idea, please let me know. Ordinary sudoku rules DO NOT apply.

I am making this puzzle for my friend James. It's his birthday! This is the first in a series of puzzles that are played on a Klein Bottle. This is a little bit of an introduction to the concept, but be on the lookout for some really cool variants to come.

This is the first in what may become a series of puzzles with a constraint I call lucky charms. This is based on one of my all time favorite sugary breakfast cereals from the US.

This is the third in a series of puzzles with a constraint I call princesses. If you like this variant, feel free to check out the others. Ordinary sudoku rules apply.

This puzzle is very clearly inspired by Mitchell Lee's famous Miracle Sudoku and is a bit of low hanging fruit. The rules are the same as the miracle sudoku rules: Cells separated by a King's move or a Knight's move cannot contain the same digit.

This is a follow up little killer version of my previous puzzle. And my very first puzzle with no given digits! Ordinary sudoku rules apply. In addition, the number in a box tells you the minimum diagonal distance between another of the same number.

The numbers in this puzzle have a constraint I call anti-princess Rules: Ordinary sudoku rules apply. In addition, the number in a box tells you the minimum diagonal distance between another of the same number.

Rules: This magenta box is a 4x4 magic square that has been tilted 45 degrees. This magic square must contain the numbers 1 through 16 exactly once and each row, column, and main diagonal of the magenta box must have the same sum.

Try it EITHER as King Sudoku (identical digits cannot be a chess king’s move apart) OR Queen Sudoku (9s cannot be a chess queen’s move apart) OR Knight Sudoku (identical digits cannot be a knight’s move apart)

This is the Goldilock's puzzle. It has 3 solutions. The first and easiest solution is found after placing a 1 in the central gray box. Placing a 2 in the box gives a moderately difficult solve.