Collatz in Python in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 595th abcdhhhh 582 98 27 Aug 2024 595th OSYCh314 🇦🇺 582 98 16 Nov 2024 595th cole-wilson 582 98 9 Dec 2024 595th Akilles1 582 98 16 hours ago 605th LukeRichardson-dev 576 99 12 May 2022 605th Tagfox 576 99 18 Jul 2022 605th gabrielsqw 576 99 24 Oct 2023 605th sciencedjinn 576 99 8 Nov 2024 609th OppositeShark 570 100 19 Jul 2022 609th NOS4A5I 570 100 10 Jan 2023 609th lomarbrick 570 100 16 May 2023 609th karlaacastro44 570 100 10 days ago 613th markus-rekdal 564 101 10 May 2022 613th fraserli 🇦🇺 564 101 2 May 2023 613th FCORMERAIS 564 101 6 Mar 2024 613th yhm138 564 101 16 Feb 2025 617th AndersH3 🇸🇪 559 102 17 May 2023 617th JulieGermainUNT 559 102 2 Apr 2025 619th rajlath 553 103 7 Jan 2023 619th mnurzia 553 103 12 Oct 2023 619th sqrteipi 553 103 2 Apr 2024 619th calum12345 553 103 26 Mar 2025 623rd winigo3 548 104 8 Aug 2022 623rd zt14427 548 104 30 Apr 2023 623rd IoLimmer 548 104 24 Jul 2024 626th LordSir101 543 105 19 Jul 2022 626th tmanternach 543 105 24 Nov 2022 626th weber-hge 543 105 13 Jun 2023 626th Eugen-str 543 105 24 Oct 2023 630th ms-tingliang 538 106 5 Aug 2022 630th achilleasr 538 106 7 Nov 2022 630th OleBrumm 538 106 8 Jan 2023 630th AbhilashaTandon 538 106 19 Sep 2023 630th sheeperino 🇮🇹 538 106 11 Oct 2024 635th phpboyscout 533 107 18 May 2023 635th DrPrettyman 533 107 5 Jul 2023 635th joseph-w0ng 533 107 5 Jul 2024 638th landyrisbad 528 108 13 Nov 2022 638th cakular 528 108 17 May 2024 638th glassala 528 108 25 Oct 2024 641st tjefferson401 523 109 16 Sep 2022 641st ariesmarinus 523 109 21 Nov 2024 643rd profJGermain 518 110 7 Feb 2024 643rd JMMMMC 518 110 23 Oct 2024 643rd jtb0362 518 110 5 days ago 646th sagnik3 509 112 8 Aug 2022 646th craftablescience 509 112 19 Sep 2023 648th kelseychristensen 504 113 2 Nov 2022 648th ArmsTheLimited 504 113 1 Jun 2023 650th HunterC14 500 114 18 Oct 2024 651st jstechman 496 115 24 Feb 2024 651st dan422442 496 115 19 Oct 2024 653rd keelanfh 491 116 20 Dec 2023 653rd returnitynet 491 116 27 Jan 2025 655th gioto64 487 117 8 Dec 2022 655th WilfredSalmon 487 117 21 Oct 2023 657th XianchengZ 483 118 18 Aug 2023 657th brindak2005 483 118 13 days ago 659th jmmographer 467 122 21 Oct 2023 660th xbxbxb007 463 123 10 Jan 2024 661st kevinnaviapaiva 442 129 20 Feb 2025 662nd AdrianN001 438 130 6 Aug 2023 663rd wyatt-the-hump 435 131 24 Dec 2022 663rd hotmanga 435 131 20 Oct 2023 663rd Jordynar02 435 131 12 days ago 666th Zach10za 429 133 23 Jan 2024 667th vtilde 425 134 8 Jan 2024 668th fig-apple 422 135 24 Jun 2023 669th S-Ruban 416 137 25 Feb 2023 670th FLOKI0421 410 139 11 days ago 670th noahdorsch 410 139 10 days ago 672nd EnisEfe0 393 145 3 Apr 2023 673rd bartsowka2000 383 149 10 Jul 2023 674th sa1640 370 154 17 days ago 675th arinhyther 368 155 24 Dec 2022 Prev 601–675 of 721 Next