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 Hilbert Curve 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 Mandelbrot Maze Medal Tally Minesweeper 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 Scrambled Sort 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 Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala 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 Hilbert Curve 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 Mandelbrot Maze Medal Tally Minesweeper 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 Scrambled Sort 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 Topological Sort Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 673rd sciencedjinn 576 99 18ms 8 Nov 2024 673rd MrNiknoc 576 99 20ms 15 Jun 2025 678th OppositeShark 570 100 18ms 19 Jul 2022 678th NOS4A5I 570 100 17ms 10 Jan 2023 678th lomarbrick 570 100 20ms 16 May 2023 678th karlaacastro44 570 100 21ms 5 May 2025 682nd markus-rekdal 564 101 26ms 10 May 2022 682nd fraserli 🇦🇺 564 101 26ms 2 May 2023 682nd FCORMERAIS 564 101 22ms 6 Mar 2024 682nd yhm138 564 101 15ms 16 Feb 2025 682nd MinecraftFan69420 564 101 20ms 12 days ago 687th AndersH3 🇸🇪 559 102 16ms 17 May 2023 687th JulieGermainUNT 559 102 23ms 2 Apr 2025 689th rajlath 553 103 18ms 7 Jan 2023 689th mnurzia 553 103 16ms 12 Oct 2023 689th sqrteipi 553 103 20ms 2 Apr 2024 689th calum12345 553 103 19ms 26 Mar 2025 689th SectorCorruptor 553 103 26ms 14 Aug 2025 694th winigo3 548 104 26ms 8 Aug 2022 694th zt14427 548 104 20ms 30 Apr 2023 694th IoLimmer 548 104 17ms 24 Jul 2024 697th LordSir101 543 105 19ms 19 Jul 2022 697th tmanternach 543 105 22ms 24 Nov 2022 697th weber-hge 543 105 15ms 13 Jun 2023 697th Eugen-str 543 105 20ms 24 Oct 2023 701st ms-tingliang 538 106 16ms 5 Aug 2022 701st achilleasr 538 106 19ms 7 Nov 2022 701st OleBrumm 538 106 19ms 8 Jan 2023 701st AbhilashaTandon 538 106 23ms 19 Sep 2023 701st sheeperino 🇮🇹 538 106 22ms 11 Oct 2024 706th phpboyscout 533 107 15ms 18 May 2023 706th DrPrettyman 533 107 17ms 5 Jul 2023 706th joseph-w0ng 533 107 19ms 5 Jul 2024 706th EnisEfe0 533 107 21ms 18 May 2025 710th landyrisbad 528 108 21ms 13 Nov 2022 710th cakular 528 108 25ms 17 May 2024 710th glassala 528 108 15ms 25 Oct 2024 710th StronkCheese2 528 108 19ms 11 hours ago 714th tjefferson401 523 109 32ms 16 Sep 2022 714th ariesmarinus 523 109 16ms 21 Nov 2024 716th profJGermain 518 110 19ms 7 Feb 2024 716th JMMMMC 518 110 20ms 23 Oct 2024 716th jtb0362 518 110 21ms 10 May 2025 719th sagnik3 509 112 20ms 8 Aug 2022 719th craftablescience 509 112 20ms 19 Sep 2023 721st kelseychristensen 504 113 20ms 2 Nov 2022 721st ArmsTheLimited 504 113 16ms 1 Jun 2023 723rd HunterC14 500 114 26ms 18 Oct 2024 724th jstechman 496 115 23ms 24 Feb 2024 724th dan422442 496 115 21ms 19 Oct 2024 726th keelanfh 491 116 18ms 20 Dec 2023 726th returnitynet 491 116 16ms 27 Jan 2025 726th EthanPatel01000101 491 116 17ms 22 days ago 729th gioto64 487 117 26ms 8 Dec 2022 729th WilfredSalmon 487 117 17ms 21 Oct 2023 731st XianchengZ 483 118 20ms 18 Aug 2023 731st brindak2005 483 118 18ms 2 May 2025 733rd jmmographer 467 122 26ms 21 Oct 2023 733rd RucatJ 467 122 18ms 8 Aug 2025 735th xbxbxb007 463 123 22ms 10 Jan 2024 736th kevinnaviapaiva 442 129 27ms 20 Feb 2025 737th AdrianN001 438 130 17ms 6 Aug 2023 738th wyatt-the-hump 435 131 17ms 24 Dec 2022 738th hotmanga 435 131 13ms 20 Oct 2023 738th Jordynar02 435 131 24ms 3 May 2025 741st Zach10za 429 133 22ms 23 Jan 2024 742nd vtilde 425 134 18ms 8 Jan 2024 743rd fig-apple 422 135 12ms 24 Jun 2023 744th S-Ruban 416 137 14ms 25 Feb 2023 745th FLOKI0421 410 139 17ms 4 May 2025 745th noahdorsch 410 139 20ms 5 May 2025 747th bartsowka2000 383 149 20ms 10 Jul 2023 748th KapelMeister 380 150 14ms 5 Sep 2025 749th sa1640 370 154 15ms 28 Apr 2025 750th arinhyther 368 155 19ms 24 Dec 2022 First Prev 676–750 of 797 Next Last
