Collatz in all languages 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 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 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 144th namelessiw 933 89 340ms 2 Oct 2025 144th Yewzir 🇧🇪 933 89 339ms 2 Oct 2025 144th Yax42 🇫🇷 933 89 335ms 4 Oct 2025 144th stefangimmillaro 933 89 345ms 6 Oct 2025 144th CaedenHarper 🇨🇦 933 89 366ms 9 Oct 2025 144th Jacob385 933 89 352ms 16 days ago 144th MeWhenI 🇻🇦 933 89 336ms 6 days ago 144th ethanlally 933 89 348ms 3 days ago 159th primo-ppcg 🇹🇭 932 58 5ms 13 Nov 2022 159th clockworknazo 932 58 8ms 15 Nov 2022 159th Lydxn 🇨🇦 932 58 5ms 7 Feb 2023 159th xsot 🇸🇬 932 58 6ms 28 Jun 2024 159th Salutations45 932 58 8ms 18 Dec 2024 164th canissimia 🇦🇶 931 51 927ms 6 May 2022 164th Lydxn 🇨🇦 931 51 1,001ms 6 May 2022 164th primo-ppcg 🇹🇭 931 51 930ms 6 May 2022 164th pardouin 🇫🇷 931 51 953ms 12 Apr 2025 168th ovs-code 🇩🇪 931 60 19ms 4 May 2022 168th m-tkach 🇺🇦 931 60 18ms 4 May 2022 168th btnlq 931 60 24ms 5 May 2022 168th orthoplex 🇨🇽 931 60 24ms 9 Oct 2022 168th FlorianCassayre 🇫🇷 931 60 24ms 7 Nov 2022 168th SirBogman 🇺🇸 931 60 20ms 20 Nov 2022 168th QuincyNash 🇺🇸 931 60 21ms 1 Dec 2022 168th Steffan153 🇫🇮 931 60 19ms 19 Dec 2022 168th SirFireball3521 931 60 17ms 26 Jan 2023 168th Shanethegamer 🇺🇸 931 60 24ms 25 May 2023 168th CornerMercury 🇬🇧 931 60 19ms 19 Jun 2023 168th ndren 931 60 24ms 2 Aug 2023 168th kg583 🇺🇸 931 60 64ms 14 Aug 2023 168th Just4FunCoder 931 60 23ms 17 Feb 2024 168th HumanoidCPU 931 60 21ms 6 May 2024 168th sean-niemann 🇺🇸 931 60 22ms 10 Jul 2024 168th pardouin 🇫🇷 931 60 21ms 11 Jul 2024 168th dokutan 931 60 20ms 15 Aug 2024 168th jatloe 931 60 29ms 26 Aug 2024 168th emgordon154 931 60 20ms 6 Sep 2024 168th starfihs 931 60 18ms 12 Oct 2024 168th CaedenHarper 🇨🇦 931 60 20ms 3 Nov 2024 168th 5quiwyrm 931 60 19ms 12 Nov 2024 168th plcc0 931 60 18ms 26 Mar 2025 168th yujh-yujh 🇬🇸 931 60 19ms 28 Mar 2025 168th albanian-laundromat 931 60 19ms 12 Apr 2025 168th Mukundan314 931 60 23ms 17 Apr 2025 168th fuzzylojik-golf 🇺🇸 931 60 22ms 1 Sep 2025 168th luuumine 🇫🇷 931 60 19ms 10 days ago 168th Babafaba 931 60 19ms 6 days ago 198th grey0ut 929 48 2,417ms 8 Apr 2025 199th m-tkach 🇺🇦 929 91 56ms 5 May 2022 199th 09cf 929 91 53ms 4 Oct 2023 201st emplv 🇱🇻 927 60 9ms 5 May 2022 201st GrayJoKing 🇦🇺 927 60 9ms 6 May 2022 201st targrik 927 60 10ms 24 Dec 2024 201st xsot 🇸🇬 927 60 9ms 1 May 2025 205th Lydxn 🇨🇦 926 38 1,762ms 4 May 2022 205th GrayJoKing 🇦🇺 926 38 418ms 5 May 2022 205th Steffan153 🇫🇮 926 38 357ms 16 Dec 2022 205th ovs-code 🇩🇪 926 38 513ms 30 Dec 2023 209th GolfingSuccess 🇬🇷 926 49 40ms 12 Aug 2024 209th Shanethegamer 🇺🇸 926 49 40ms 12 Aug 2024 209th Steffan153 🇫🇮 926 49 40ms 12 Aug 2024 209th MeWhenI 🇻🇦 926 49 46ms 13 Aug 2024 209th DialFrost 🇸🇬 926 49 48ms 13 Aug 2024 209th GrayJoKing 🇦🇺 926 49 68ms 15 Aug 2024 209th btnlq 926 49 64ms 16 Aug 2024 209th emgordon154 926 49 47ms 19 Aug 2024 209th ovs-code 🇩🇪 926 49 43ms 19 Aug 2024 209th mousetail 🇳🇱 926 49 60ms 13 Sep 2024 209th lynn 926 49 43ms 20 Dec 2024 209th weeble 926 49 46ms 20 Dec 2024 209th sean-niemann 🇺🇸 926 49 42ms 11 Jan 2025 222nd ovs-code 🇩🇪 926 52 918ms 16 Jan 2024 222nd kg583 🇺🇸 926 52 461ms 24 Jan 2024 222nd Shanethegamer 🇺🇸 926 52 446ms 24 Mar 2024 222nd pardouin 🇫🇷 926 52 487ms 11 Jul 2024 First Prev 151–225 of 3,437 Next Last