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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 601st GrayJoKing 🇦🇺 875 84 53ms 19 Jun 2022 601st primo-ppcg 🇹🇭 875 84 48ms 29 Jun 2022 603rd Shanethegamer 🇺🇸 875 142 993ms 27 Mar 2025 603rd DialFrost 🇸🇬 875 142 857ms 28 Mar 2025 603rd emgordon154 875 142 910ms 10 Apr 2025 606th Shanethegamer 🇺🇸 874 51 405ms 15 May 2023 607th rucin93 🇵🇱 874 57 171ms 4 Aug 2024 607th dokutan 874 57 162ms 9 Aug 2024 609th c0d3-4-F00d 🇩🇪 874 61 11ms 6 May 2022 609th jackkav 874 61 11ms 26 Jun 2022 609th TechNolaByte 874 61 11ms 6 Jul 2022 609th Heathcorp 🇦🇺 874 61 10ms 17 Jul 2022 609th C0de5mith 🇺🇸 874 61 11ms 3 Aug 2022 609th sebipopa 🇷🇴 874 61 10ms 18 Aug 2022 609th moikaturns 🇬🇧 874 61 14ms 25 Sep 2022 609th FlorianCassayre 🇫🇷 874 61 11ms 27 Sep 2022 609th Mazn3k 874 61 10ms 1 Feb 2023 609th tvcv901 874 61 11ms 22 Mar 2023 609th unfinishedprogram 874 61 11ms 19 Jul 2023 609th snoozingnewt 🇺🇸 874 61 11ms 23 Sep 2023 609th funnyboy-roks 874 61 10ms 9 May 2024 609th bac0id 874 61 9ms 29 Jun 2024 609th madex 🇩🇪 874 61 11ms 9 Jul 2024 609th FortuiteMan 🇫🇷 874 61 10ms 10 Oct 2024 609th RobertHoeh 874 61 11ms 5 Apr 2025 609th LvLError 874 61 11ms 29 May 2025 609th Lv0Sys 🇵🇱 874 61 12ms 30 May 2025 609th miles-evan 874 61 13ms 5 Aug 2025 609th alexsave 874 61 12ms 10 days ago 630th Grrisly 874 74 4ms 25 Mar 2024 631st snoozingnewt 🇺🇸 874 95 444ms 15 days ago 632nd NerdyMcNerd42 873 64 20ms 26 Oct 2022 632nd tpasfieldERAU 873 64 25ms 14 Nov 2022 632nd CheeseCake628 🇳🇴 873 64 22ms 6 Jan 2023 632nd adamnielson42 🇺🇸 873 64 22ms 25 Apr 2023 632nd nathsou 🇫🇷 873 64 21ms 2 Sep 2023 632nd zwxzwxzwx21 873 64 24ms 30 Jan 2024 632nd steffan-polygolf 873 64 21ms 8 Mar 2024 632nd Jacob385 873 64 62ms 4 Apr 2024 632nd gallium-gonzollium 873 64 28ms 26 Aug 2024 632nd Babafaba 873 64 24ms 8 days ago 642nd johnnythedoggie 873 72 103ms 13 May 2022 642nd kaascevich 873 72 109ms 8 Jul 2025 644th DialFrost 🇸🇬 873 73 100ms 3 Jun 2025 645th Shanethegamer 🇺🇸 872 66 189ms 4 May 2022 645th scpchicken 🇵🇼 872 66 328ms 5 May 2022 645th sisyphus-ppcg 🇦🇺 872 66 170ms 6 May 2022 645th Natanaelel 🇸🇪 872 66 159ms 15 Jun 2022 645th Z-snails 872 66 339ms 27 Feb 2023 645th Jeremy-Stafford 872 66 333ms 27 Feb 2023 645th alomiF 872 66 367ms 1 Sep 2023 645th btnlq 872 66 144ms 17 Oct 2023 653rd DialFrost 🇸🇬 872 86 49ms 24 Oct 2024 653rd stefangimmillaro 872 86 49ms 14 Jan 2025 655th c0d3-4-F00d 🇩🇪 872 89 344ms 5 May 2022 655th fkantelberg 872 89 401ms 15 Jul 2023 655th bac0id 872 89 363ms 26 Sep 2023 655th TRexOnGit 872 89 360ms 16 Feb 2024 655th arcpolaris 872 89 353ms 18 Nov 2024 660th nwellnhof 🇩🇪 872 111 276ms 4 May 2022 660th stefangimmillaro 872 111 289ms 26 Sep 2023 660th kkoenig 872 111 285ms 4 Jan 2024 663rd HPWiz 🇳🇿 871 49 259ms 4 May 2022 663rd JayXon 🇺🇸 871 49 274ms 5 May 2022 663rd Steffan153 🇫🇮 871 49 303ms 10 Dec 2022 663rd ovs-code 🇩🇪 871 49 407ms 24 Oct 2023 663rd sean-niemann 🇺🇸 871 49 254ms 12 Jul 2024 668th dokutan 871 62 5ms 28 Apr 2025 669th inventshah 871 97 63ms 6 May 2022 669th roupiq 🇵🇱 871 97 56ms 22 Nov 2023 671st janbehrens 🇩🇪 870 90 442ms 21 Apr 2023 671st Yewzir 🇧🇪 870 90 463ms 22 Apr 2023 671st DialFrost 🇸🇬 870 90 440ms 6 Nov 2023 671st Ripick 870 90 439ms 27 Nov 2024 675th GolfingSuccess 🇬🇷 869 71 2ms 5 May 2022 First Prev 601–675 of 3,386 Next Last