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 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 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 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 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 300th primo-ppcg 🇹🇭 914 76 23ms 15 May 2023 300th Lydxn 🇨🇦 914 76 10ms 22 May 2023 300th GrayJoKing 🇦🇺 914 76 12ms 24 Aug 2023 304th arctouch-cristiannevianna 913 85 366ms 3 Apr 2023 304th Widgitty 913 85 356ms 1 Sep 2023 304th tomtheisen 🇺🇸 913 85 340ms 10 Apr 2025 307th edsrzf 🇳🇿 912 54 1,619ms 13 Sep 2025 307th CaedenHarper 🇨🇦 912 54 1,405ms 27 Sep 2025 307th sean-niemann 🇺🇸 912 54 1,551ms 27 Sep 2025 310th primo-ppcg 🇹🇭 911 61 6ms 6 May 2022 310th sisyphus-ppcg 🇦🇺 911 61 10ms 14 Jul 2022 312th Lydxn 🇨🇦 911 70 96ms 7 May 2022 312th JayXon 🇺🇸 911 70 96ms 7 May 2022 314th Steffan153 🇫🇮 911 71 117ms 14 Oct 2022 314th Shanethegamer 🇺🇸 911 71 107ms 15 Oct 2022 314th stefangimmillaro 911 71 111ms 16 Oct 2022 314th MeWhenI 🇻🇦 911 71 115ms 16 Oct 2022 314th Steffan153 🇫🇮 911 71 6ms 10 Dec 2022 314th synt7x 🇺🇸 911 71 4ms 7 Jul 2025 320th pardouin 🇫🇷 911 72 4,251ms 21 May 2025 321st annaproxy 911 78 128ms 13 Jan 2023 321st IanUtley 911 78 119ms 12 Nov 2023 321st GrayJoKing 🇦🇺 911 78 84ms 28 Nov 2023 321st edsrzf 🇳🇿 911 78 21ms 16 Aug 2025 325th Bubbler-4 910 33 2,543ms 6 May 2022 325th rak1507 🇬🇧 910 33 111ms 8 May 2022 325th ngn 🇧🇬 910 33 26ms 11 May 2022 325th zacjl 910 33 32ms 3 Jun 2025 325th GrayJoKing 🇦🇺 910 33 15ms 4 Jun 2025 330th Shanethegamer 🇺🇸 910 86 390ms 15 May 2023 330th JayXon 🇺🇸 910 86 508ms 15 May 2023 330th Steffan153 🇫🇮 910 86 389ms 16 May 2023 330th Lydxn 🇨🇦 910 86 465ms 16 May 2023 330th GrayJoKing 🇦🇺 910 86 400ms 11 Aug 2023 330th sean-niemann 🇺🇸 910 86 458ms 11 Jul 2024 336th andersk 🇺🇸 910 91 129ms 25 Oct 2022 336th Super-Pizza 🇨🇦 910 91 121ms 4 Dec 2022 336th klixel 🇨🇦 910 91 122ms 20 May 2023 336th lynn 910 91 121ms 6 Jul 2024 336th edsrzf 🇳🇿 910 91 121ms 29 Nov 2024 336th DialFrost 🇸🇬 910 91 123ms 7 Apr 2025 342nd Lydxn 🇨🇦 909 47 285ms 5 May 2022 343rd JayXon 🇺🇸 909 53 443ms 17 Aug 2024 344th tailorspy 909 93 71ms 27 May 2024 344th sean-niemann 🇺🇸 909 93 65ms 9 Jun 2025 344th KasperKivimaeki 🇫🇮 909 93 58ms 8 days ago 347th Lydxn 🇨🇦 908 81 45ms 1 Apr 2023 348th Shanethegamer 🇺🇸 907 61 5ms 9 Oct 2023 348th edsrzf 🇳🇿 907 61 4ms 4 Jul 2025 350th nai62 907 68 8ms 27 Aug 2022 351st ovs-code 🇩🇪 907 75 74ms 12 Sep 2024 351st Kacarott 🇦🇺 907 75 78ms 13 Sep 2024 353rd GrayJoKing 🇦🇺 906 74 81ms 1 Nov 2023 354th ovs-code 🇩🇪 905 67 92ms 13 Dec 2022 354th Steffan153 🇫🇮 905 67 99ms 18 Dec 2022 354th Lydxn 🇨🇦 905 67 105ms 4 Feb 2023 354th DialFrost 🇸🇬 905 67 90ms 17 Mar 2025 358th lynn 905 78 1,390ms 5 May 2022 359th Lydxn 🇨🇦 905 107 290ms 6 May 2022 359th CaedenHarper 🇨🇦 905 107 281ms 5 Oct 2025 361st KrausRaus 🇺🇸 903 59 11ms 4 May 2022 361st voytxt 🇨🇿 903 59 15ms 4 May 2022 361st KingSkyrock 🇺🇸 903 59 11ms 18 May 2022 361st ZakkkkAttackkkk 🇵🇭 903 59 10ms 14 Jul 2022 361st aksyristos 903 59 10ms 28 Oct 2022 361st nstearns96 🇬🇧 903 59 11ms 28 Nov 2022 361st janbehrens 🇩🇪 903 59 13ms 17 May 2023 361st Shanethegamer 🇺🇸 903 59 11ms 25 May 2023 361st Maznek 903 59 10ms 26 Jun 2023 361st SpiritAxolotl 🇺🇸 903 59 14ms 20 Mar 2024 361st Andrey-Plotnikov 903 59 10ms 19 May 2024 361st emgordon154 903 59 11ms 5 Aug 2024 361st duckyluuk 🇳🇱 903 59 9ms 3 Oct 2024 361st lifthrasiir 🇰🇷 903 59 11ms 23 Nov 2024 361st fuzzylojik-golf 🇺🇸 903 59 13ms 1 Jun 2025 First Prev 301–375 of 3,397 Next Last