Collatz in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 214th sean-niemann 🇺🇸 926 49 42ms 11 Jan 2025 227th ovs-code 🇩🇪 926 52 424ms 16 Jan 2024 227th kg583 🇺🇸 926 52 556ms 24 Jan 2024 227th Shanethegamer 🇺🇸 926 52 400ms 24 Mar 2024 227th pardouin 🇫🇷 926 52 415ms 11 Jul 2024 227th Steffan153 🇫🇮 926 52 412ms 17 Aug 2024 227th sean-niemann 🇺🇸 926 52 525ms 24 Jan 2025 233rd MeWhenI 🇻🇦 925 68 88ms 23 Feb 2023 233rd JayXon 🇺🇸 925 68 89ms 4 Mar 2025 235th GrayJoKing 🇦🇺 925 70 3ms 13 Jul 2024 235th FlyingPenguin223 925 70 5ms 4 Oct 2024 235th jipsong 🇩🇪 925 70 5ms 5 Apr 2025 238th Lydxn 🇨🇦 924 70 95ms 17 Oct 2022 238th JayXon 🇺🇸 924 70 96ms 17 Oct 2022 240th roavin 924 84 316ms 23 Jun 2022 240th tkr-sh 🇰🇵 924 84 313ms 20 Aug 2022 240th Nickmiste 924 84 321ms 9 Nov 2022 240th postie77 924 84 319ms 19 May 2023 240th ertz1ertz 924 84 317ms 13 Sep 2024 240th Grabnukebomb 924 84 314ms 13 Sep 2024 240th Shanethegamer 🇺🇸 924 84 341ms 9 Apr 2025 240th HumanoidCPU 924 84 344ms 10 Apr 2025 240th annaproxy 924 84 332ms 11 Apr 2025 240th Re-Adventures 🇮🇳 924 84 324ms 15 Apr 2025 240th janbehrens 🇩🇪 924 84 349ms 17 Apr 2025 251st sean-niemann 🇺🇸 923 54 125ms 6 Aug 2024 251st Steffan153 🇫🇮 923 54 119ms 6 Aug 2024 251st lukegustafson 🇺🇸 923 54 123ms 7 Aug 2024 251st pardouin 🇫🇷 923 54 123ms 8 Aug 2024 251st Lydxn 🇨🇦 923 54 126ms 9 Aug 2024 251st JayXon 🇺🇸 923 54 127ms 9 Aug 2024 257th h3ra993huskp 🇯🇵 923 90 342ms 7 days ago 258th JayXon 🇺🇸 923 105 256ms 4 Oct 2025 258th KasperKivimaeki 🇫🇮 923 105 259ms 4 Oct 2025 260th ovs-code 🇩🇪 922 60 4ms 9 Oct 2023 260th GrayJoKing 🇦🇺 922 60 5ms 11 Oct 2023 260th Lydxn 🇨🇦 922 60 4ms 11 Oct 2023 260th GolfingSuccess 🇬🇷 922 60 4ms 16 Nov 2023 260th Steffan153 🇫🇮 922 60 5ms 28 Jan 2024 260th JayXon 🇺🇸 922 60 4ms 29 Jan 2024 260th rucin93 🇵🇱 922 60 5ms 10 Jul 2024 260th sean-niemann 🇺🇸 922 60 4ms 10 Jul 2024 268th Steffan153 🇫🇮 922 67 37ms 19 Aug 2024 268th JayXon 🇺🇸 922 67 53ms 19 Aug 2024 270th Lydxn 🇨🇦 920 90 124ms 6 May 2022 271st sisyphus-ppcg 🇦🇺 919 50 2,478ms 31 Jan 2023 271st saito-ta 🇯🇵 919 50 759ms 12 Dec 2024 273rd uiamn 919 58 11ms 6 Sep 2022 273rd 5quiwyrm 919 58 10ms 29 Sep 2022 273rd alasdair-greenland 919 58 10ms 13 Jan 2023 273rd kirjavascript 919 58 10ms 4 Aug 2025 273rd Posandu 919 58 14ms 26 Aug 2025 273rd mrxz 🇳🇱 919 58 11ms 3 Sep 2025 279th sean-niemann 🇺🇸 919 66 100ms 29 May 2025 280th Herbert00709 🇵🇱 919 92 69ms 17 Nov 2023 280th 4QT0R 919 92 58ms 23 Nov 2023 280th ovs-code 🇩🇪 919 92 55ms 3 Jun 2024 283rd primo-ppcg 🇹🇭 917 24 158ms 10 Dec 2022 284th JayXon 🇺🇸 917 69 552ms 5 Apr 2023 284th Lydxn 🇨🇦 917 69 549ms 9 Apr 2023 286th nwellnhof 🇩🇪 916 51 50ms 4 May 2022 286th primo-ppcg 🇹🇭 916 51 43ms 6 May 2022 286th janlelis 916 51 39ms 10 May 2022 286th Natanaelel 🇸🇪 916 51 39ms 2 Jun 2022 290th btnlq 916 59 8ms 6 Nov 2022 291st Irratix 🇳🇱 916 61 44ms 7 May 2022 291st TFeld00 🇩🇰 916 61 24ms 17 May 2022 291st hallvabo 🇳🇴 916 61 21ms 4 Sep 2022 291st DialFrost 🇸🇬 916 61 23ms 19 Dec 2022 291st anter69 🇭🇺 916 61 19ms 19 Dec 2022 291st Alex-x90 🇺🇸 916 61 20ms 27 Dec 2022 291st commandblockguy 🇺🇸 916 61 19ms 22 Aug 2023 291st fgrosshans 🇫🇷 916 61 19ms 22 Jul 2024 291st duckyluuk 🇳🇱 916 61 20ms 15 Aug 2024 291st rucin93 🇵🇱 916 61 19ms 31 May 2025 First Prev 226–300 of 3,485 Next Last