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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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 226th ovs-code 🇩🇪 926 52 370ms 16 Jan 2024 226th kg583 🇺🇸 926 52 461ms 24 Jan 2024 226th Shanethegamer 🇺🇸 926 52 446ms 24 Mar 2024 226th pardouin 🇫🇷 926 52 487ms 11 Jul 2024 226th Steffan153 🇫🇮 926 52 496ms 17 Aug 2024 226th sean-niemann 🇺🇸 926 52 502ms 24 Jan 2025 232nd MeWhenI 🇻🇦 925 68 88ms 23 Feb 2023 232nd JayXon 🇺🇸 925 68 89ms 4 Mar 2025 234th GrayJoKing 🇦🇺 925 70 3ms 13 Jul 2024 234th FlyingPenguin223 925 70 4ms 4 Oct 2024 234th jipsong 🇩🇪 925 70 6ms 5 Apr 2025 237th Lydxn 🇨🇦 924 70 116ms 17 Oct 2022 237th JayXon 🇺🇸 924 70 107ms 17 Oct 2022 239th roavin 924 84 316ms 23 Jun 2022 239th tkr-sh 🇰🇵 924 84 313ms 20 Aug 2022 239th Nickmiste 924 84 321ms 9 Nov 2022 239th postie77 924 84 319ms 19 May 2023 239th ertz1ertz 924 84 317ms 13 Sep 2024 239th Grabnukebomb 924 84 314ms 13 Sep 2024 239th Shanethegamer 🇺🇸 924 84 341ms 9 Apr 2025 239th HumanoidCPU 924 84 344ms 10 Apr 2025 239th annaproxy 924 84 332ms 11 Apr 2025 239th Re-Adventures 🇮🇳 924 84 324ms 15 Apr 2025 239th janbehrens 🇩🇪 924 84 349ms 17 Apr 2025 250th sean-niemann 🇺🇸 923 54 125ms 6 Aug 2024 250th Steffan153 🇫🇮 923 54 119ms 6 Aug 2024 250th lukegustafson 🇺🇸 923 54 123ms 7 Aug 2024 250th pardouin 🇫🇷 923 54 123ms 8 Aug 2024 250th Lydxn 🇨🇦 923 54 126ms 9 Aug 2024 250th JayXon 🇺🇸 923 54 127ms 9 Aug 2024 256th h3ra993huskp 🇯🇵 923 90 342ms 20 hours ago 257th JayXon 🇺🇸 923 105 248ms 4 Oct 2025 257th KasperKivimaeki 🇫🇮 923 105 243ms 4 Oct 2025 259th ovs-code 🇩🇪 922 60 4ms 9 Oct 2023 259th GrayJoKing 🇦🇺 922 60 5ms 11 Oct 2023 259th Lydxn 🇨🇦 922 60 4ms 11 Oct 2023 259th GolfingSuccess 🇬🇷 922 60 4ms 16 Nov 2023 259th Steffan153 🇫🇮 922 60 5ms 28 Jan 2024 259th JayXon 🇺🇸 922 60 4ms 29 Jan 2024 259th rucin93 🇵🇱 922 60 5ms 10 Jul 2024 259th sean-niemann 🇺🇸 922 60 4ms 10 Jul 2024 267th Steffan153 🇫🇮 922 67 37ms 19 Aug 2024 267th JayXon 🇺🇸 922 67 53ms 19 Aug 2024 269th Lydxn 🇨🇦 920 90 124ms 6 May 2022 270th sisyphus-ppcg 🇦🇺 919 50 2,856ms 31 Jan 2023 270th saito-ta 🇯🇵 919 50 890ms 12 Dec 2024 272nd uiamn 919 58 11ms 6 Sep 2022 272nd 5quiwyrm 919 58 10ms 29 Sep 2022 272nd alasdair-greenland 919 58 10ms 13 Jan 2023 272nd kirjavascript 919 58 10ms 4 Aug 2025 272nd Posandu 919 58 10ms 26 Aug 2025 272nd mrxz 🇳🇱 919 58 13ms 3 Sep 2025 278th sean-niemann 🇺🇸 919 66 100ms 29 May 2025 279th Herbert00709 🇵🇱 919 92 55ms 17 Nov 2023 279th 4QT0R 919 92 55ms 23 Nov 2023 279th ovs-code 🇩🇪 919 92 50ms 3 Jun 2024 282nd primo-ppcg 🇹🇭 917 24 158ms 10 Dec 2022 283rd JayXon 🇺🇸 917 69 531ms 5 Apr 2023 283rd Lydxn 🇨🇦 917 69 548ms 9 Apr 2023 285th nwellnhof 🇩🇪 916 51 50ms 4 May 2022 285th primo-ppcg 🇹🇭 916 51 43ms 6 May 2022 285th janlelis 916 51 39ms 10 May 2022 285th Natanaelel 🇸🇪 916 51 39ms 2 Jun 2022 289th btnlq 916 59 8ms 6 Nov 2022 290th Irratix 🇳🇱 916 61 45ms 7 May 2022 290th TFeld00 🇩🇰 916 61 28ms 17 May 2022 290th hallvabo 🇳🇴 916 61 19ms 4 Sep 2022 290th DialFrost 🇸🇬 916 61 24ms 19 Dec 2022 290th anter69 🇭🇺 916 61 20ms 19 Dec 2022 290th Alex-x90 🇺🇸 916 61 23ms 27 Dec 2022 290th commandblockguy 🇺🇸 916 61 18ms 22 Aug 2023 290th fgrosshans 🇫🇷 916 61 19ms 22 Jul 2024 290th duckyluuk 🇳🇱 916 61 20ms 15 Aug 2024 290th rucin93 🇵🇱 916 61 17ms 31 May 2025 290th katss2 916 61 19ms 17 Aug 2025 First Prev 226–300 of 3,471 Next Last