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 600th sean-niemann 🇺🇸 880 40 365ms 8 Mar 2025 602nd emplv 🇱🇻 880 110 261ms 5 May 2022 602nd Shanethegamer 🇺🇸 880 110 277ms 21 Nov 2023 602nd edsrzf 🇳🇿 880 110 247ms 28 Nov 2024 602nd targrik 880 110 248ms 30 Jun 2025 606th Shanethegamer 🇺🇸 879 81 19ms 19 Dec 2023 606th emgordon154 879 81 26ms 29 Jul 2025 608th GrayJoKing 🇦🇺 878 72 430ms 31 May 2022 608th Shanethegamer 🇺🇸 878 72 414ms 1 Jun 2022 608th Steffan153 🇫🇮 878 72 434ms 10 Dec 2022 611th ovs-code 🇩🇪 878 73 300ms 22 Jul 2023 612th steffan-polygolf 878 74 130ms 14 Feb 2024 613th primo-ppcg 🇹🇭 878 193 105ms 14 Aug 2025 614th Shanethegamer 🇺🇸 877 142 765ms 27 Mar 2025 614th DialFrost 🇸🇬 877 142 512ms 28 Mar 2025 614th emgordon154 877 142 481ms 10 Apr 2025 617th mousetail 🇳🇱 876 40 73ms 29 Aug 2025 618th Shanethegamer 🇺🇸 875 51 405ms 15 May 2023 619th Grrisly 875 74 4ms 25 Mar 2024 620th GrayJoKing 🇦🇺 875 84 53ms 19 Jun 2022 620th primo-ppcg 🇹🇭 875 84 48ms 29 Jun 2022 622nd JayXon 🇺🇸 875 157 1,590ms 14 Sep 2025 623rd rucin93 🇵🇱 874 57 139ms 4 Aug 2024 623rd dokutan 874 57 130ms 9 Aug 2024 625th c0d3-4-F00d 🇩🇪 874 61 9ms 6 May 2022 625th jackkav 874 61 10ms 26 Jun 2022 625th TechNolaByte 874 61 10ms 6 Jul 2022 625th Heathcorp 🇦🇺 874 61 10ms 17 Jul 2022 625th C0de5mith 🇺🇸 874 61 10ms 3 Aug 2022 625th sebipopa 🇷🇴 874 61 11ms 18 Aug 2022 625th moikaturns 🇬🇧 874 61 11ms 25 Sep 2022 625th FlorianCassayre 🇫🇷 874 61 11ms 27 Sep 2022 625th Mazn3k 874 61 10ms 1 Feb 2023 625th tvcv901 874 61 10ms 22 Mar 2023 625th unfinishedprogram 874 61 10ms 19 Jul 2023 625th snoozingnewt 🇺🇸 874 61 11ms 23 Sep 2023 625th funnyboy-roks 874 61 9ms 9 May 2024 625th bac0id 874 61 11ms 29 Jun 2024 625th madex 🇩🇪 874 61 11ms 9 Jul 2024 625th FortuiteMan 🇫🇷 874 61 10ms 10 Oct 2024 625th RobertHoeh 874 61 10ms 5 Apr 2025 625th LvLError 874 61 10ms 29 May 2025 625th Lv0Sys 🇵🇱 874 61 10ms 30 May 2025 625th miles-evan 874 61 10ms 5 Aug 2025 625th alexsave 874 61 14ms 13 Oct 2025 646th snoozingnewt 🇺🇸 874 95 341ms 8 Oct 2025 647th NerdyMcNerd42 873 64 19ms 26 Oct 2022 647th tpasfieldERAU 873 64 23ms 14 Nov 2022 647th CheeseCake628 🇳🇴 873 64 23ms 6 Jan 2023 647th adamnielson42 🇺🇸 873 64 23ms 25 Apr 2023 647th nathsou 🇫🇷 873 64 19ms 2 Sep 2023 647th zwxzwxzwx21 873 64 23ms 30 Jan 2024 647th steffan-polygolf 873 64 26ms 8 Mar 2024 647th Jacob385 873 64 57ms 4 Apr 2024 647th gallium-gonzollium 873 64 25ms 26 Aug 2024 656th johnnythedoggie 873 72 88ms 13 May 2022 656th kaascevich 873 72 81ms 8 Jul 2025 658th DialFrost 🇸🇬 873 73 100ms 3 Jun 2025 659th HPWiz 🇳🇿 872 49 259ms 4 May 2022 659th JayXon 🇺🇸 872 49 274ms 5 May 2022 659th Steffan153 🇫🇮 872 49 303ms 10 Dec 2022 659th ovs-code 🇩🇪 872 49 407ms 24 Oct 2023 659th sean-niemann 🇺🇸 872 49 254ms 12 Jul 2024 664th dokutan 872 62 5ms 28 Apr 2025 665th Shanethegamer 🇺🇸 872 66 189ms 4 May 2022 665th scpchicken 🇵🇼 872 66 328ms 5 May 2022 665th sisyphus-ppcg 🇦🇺 872 66 170ms 6 May 2022 665th Natanaelel 🇸🇪 872 66 159ms 15 Jun 2022 665th Z-snails 872 66 339ms 27 Feb 2023 665th Jeremy-Stafford 872 66 333ms 27 Feb 2023 665th alomiF 872 66 367ms 1 Sep 2023 665th btnlq 872 66 144ms 17 Oct 2023 673rd DialFrost 🇸🇬 872 86 49ms 24 Oct 2024 673rd stefangimmillaro 872 86 49ms 14 Jan 2025 675th c0d3-4-F00d 🇩🇪 872 89 344ms 5 May 2022 First Prev 601–675 of 3,447 Next Last