hutt's puzzle dump

 The following puzzles were made between the 23rd and 25th of May. I wouldn't be surprised if I'm not the first person to think of this idea, but I really like how this variant contains logic involving both the meanings of the numbers and copied digits. Normal sudoku rules apply. Lines protruding from diamonds count the distance in squares that can be traveled in that direction from the diamond to find a digit that matches the digit in the diamond. If multiple lines are attached to one diamond, combine the effects of all its lines into one displacement. For example, in the picture below, if the digits on the lines are correct, then the two cells marked in red must contain the same digit: (Note: the answer checker will only care about normal sudoku rules. You'll have to ensure manually that you've correctly satisfied the diamonds.) Puzzle 1 (4x4) Puzzle 2 (4x4) Puzzle 3 (4x4) Puzzle 4 (4x4) Puzzle 5 (4x4) Puzzle 6 (6x6) Puzzle 7 (6x6) 1 2 3 4 5 6 7

 It's been a busy month, both in terms of work I've had to do and the quantity of puzzle solving. I highly recommend Skeptical Mario's "Sudokuvania: Digits of Despair": it's huge and it's hard, but the difficulty curve builds up the concepts nicely and it's structured so that the player never has to reset too much progress if they make a mistake and always receives feedback if they complete sections correctly. I've put the writing project on hiatus so that I can focus all my energy into the larger project over the summer. I hope to complete it in May or early June, so that I can publicly release it mid-July. Currently, the project is at least half-complete. The largest bottleneck for the near future is making MS Paint look good, but the final section is what's making it difficult for me to set a precise timeline. The following puzzle was made on 4/17/25 and was inspired by a conversation about fog and other methods of obscuring information in p...

 made yesterday, to see if anyone would attempt to solve it as a Sudoku if I didn't post the link https://pedros.works/paper-puzzle-player.html?W=4x4&L=(2)0(4)2(3)11(4)2&SIT=2RRRR12DDDD&G=speckled-bands

 As someone who likes to set puzzles a few clues at a time, Kropki Pairs feels more natural to set than classic Kropki because of the constraint it removes. However, this comes at the cost of making the logic a bit more straightforward, or the added benefit of being more streamlined, depending on how you look at it. https://pedros.works/paper-puzzle-player?W=5x5&L=(2)0(1)7(4)3(1)4(3)3(2)7&L-E=w1w11w15w11&G=kropki-pairs https://pedros.works/paper-puzzle-player?W=7x7&L=(1)6(2)6(1)5(3)14(2)5(4)6&L-E=b4w6w1b7w7w1w2b3w1w19b1w3w2w1b7w7w1b6&G=kropki-pairs

 Sudoku is probably the most well-known paper puzzle. The base rules are very easy to understand. The grid size is often constrained to a square with less than a hundred cells, yet countless volumes have been filled with classic puzzles and brought to bookstores. I find it nice to solve a classic one every once in a while, but what really appeals to me about this type is its ability to act as a canvas for a ton of fantastic variant puzzles. Whereas classic sudoku might start to feel stale while solving tens in a row, variant sudoku always stays fresh and continues to deliver brand new logical ideas. I'm reminded of my #A25 collection. I intend to make a megapuzzle for #A50. 4x4 Classic (f-puzzles) 12x2 Samurai (penpa) 6x6 Arrow and Thermo (f-puzzles) 6x6 "Missing Products" (penpa)

 made on 5/21/24 Link Place each digit from 1 to 9 exactly once in every row and column. Numbers in squares separated by a white dot are consecutive. Numbers in squares separated by a black dot have a ratio of 2. All possible dots are given, although the edge between a 1 and 2 could be indicated by a black dot or a white dot. Automatic answer checking requires Sudoku-Centre mode.

 made on 5/5/24 Variant: Unclued circles borrow the digit from one of the digits they compare. https://puzz.link/p?minarism/v:/5/5/.p.gphj.j1pgjhj

 made on 4/9/24 https://puzz.link/p?doppelblock/4/4/1j23g https://puzz.link/p?doppelblock/5/5/1h45g23h https://puzz.link/p?doppelblock/6/6/12h89h4573

uploaded on 3/15/24 https://puzz.link/p?tentaisho/4/4/iflerfhf (The link below was updated from a puzz.link Kropki with improper answer checking to a Kudamono Kropki Pairs link on 2/1/25. This blog page's title was updated to reflect the new genre choice.) https://pedros.works/paper-puzzle-player.html?W=4x4&L-E=b7w5b1b4&G=kropki-pairs

 made on 1/30/24 The sum of digits along the arrow equals the circled digit. The number in the shaded circle is odd. This puzzle combines odd clues with thermometers, which are lines that start on a circular bulb and contain numbers that strictly increase moving away from the bulb. However, it's unclear which circles are odd and which are bulbs.

 So, this is what it's been building up to. I honestly didn't think I would finish in time, but I did! It's highly recommended to try all the other puzzle types on the advent calendar before attempting their respective days' variant sudokus. Huge thanks to random 8 for solving all the sudokus and providing feedback and cheese. Best of luck, and Merry Christmas! http://tinyurl.com/3vpcnewz 1. Choco Renbanana Shade some cells in the form of a choco banana. Every region must have a number which represents its area - the circled digits must represent area. Unshaded regions are renban groups: they contain a set of consecutive numbers (e.g. 234, 12, 12345) in some order. Numbers cannot repeat within a renban group. 2. Castle Wall Solve as a Castle Wall, where every cell with an arrow borrows its digit to form a clue. 3. No Three No digit can be horizontally equidistant from digits that differ from it by the same amount, nor vertically equidistant. For example, R1C3 cannot be ...

 made on 6/18/23 https://tinyurl.com/2xqdhnk7 When the puzzle is finished, a 9-letter word will read from top-left to bottom-right along the major diagonal.

 made on 5/26/23 Back in August 2022, Cray had introduced a few 4x4 Sudoku variants. 381. Square Sum Sudoku https://f-puzzles.com/?id=2pyegd67 382. Invisibulb Sudoku (very hard!) https://f-puzzles.com/?id=2e2jf6vr 383. Invisibulb and Square Sum https://f-puzzles.com/?id=2l869w9t 384. Invisibulb or Square Sum? https://f-puzzles.com/?id=2h4vucpr This also inspired me to do something silly: https://f-puzzles.com/?id=2zrnhym6

 made on 3/18/22 https://f-puzzles.com/?id=yc99dqav Even numbers solve a LITS.  https://puzz.link/rules.html?lits Multiples of three solve a Norinori. https://puzz.link/rules.html?norinori

 made on 7/9/21; replaced broken link with pic on 3/4/24 See #10 for rules

 As far as I can tell, these are the first puzzles I uploaded online. They range from 9/4/20 to 11/21/20. Some are admitably better than others. 1. "Variant Sudoku":  https://f-puzzles.com/?id=y4yknha5 (hard) - the numbers in the diagonal pointed by the arrow add to 6 - numbers do not repeat in the dashed cage - the numbers connected by the soft diagonal line are the same - the number in the square is even - the numbers connected by the white circle differ by 1 2. "3x3 Sudoku"  https://f-puzzles.com/?id=y6leagqj (trivial) 3. "Bad Sudoku"  https://f-puzzles.com/?id=yxa4nyll (medium) - this is technically a metapuzzle 4. "Small Killer Sudoku"  https://f-puzzles.com/?id=yymchp4v (easy-medium) 5. "6x6 Irregular Nonconsecutive Sudoku"  https://f-puzzles.com/?id=yxk2mwv5 (medium) 6. "6 Here and There"  https://f-puzzles.com/?id=y2r88wap (easy-medium) - the puzzle number was probably not intentional 7. "6 Everywhere" ...