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 674th bac0id 872 89 363ms 26 Sep 2023 674th TRexOnGit 872 89 360ms 16 Feb 2024 678th nwellnhof 🇩🇪 872 111 262ms 4 May 2022 678th stefangimmillaro 872 111 259ms 26 Sep 2023 678th kkoenig 872 111 256ms 4 Jan 2024 681st janbehrens 🇩🇪 871 90 442ms 21 Apr 2023 681st Yewzir 🇧🇪 871 90 463ms 22 Apr 2023 681st DialFrost 🇸🇬 871 90 440ms 6 Nov 2023 681st Ripick 871 90 439ms 27 Nov 2024 685th inventshah 871 97 53ms 6 May 2022 685th roupiq 🇵🇱 871 97 49ms 22 Nov 2023 687th AlephSquirrel 870 80 13ms 20 Apr 2023 687th ashtraypettingzoo 🇺🇸 870 80 13ms 1 Apr 2024 689th GolfingSuccess 🇬🇷 869 71 2ms 5 May 2022 689th emplv 🇱🇻 869 71 3ms 5 May 2022 689th JayXon 🇺🇸 869 71 2ms 7 May 2022 689th m-tkach 🇺🇦 869 71 2ms 15 May 2022 689th nwellnhof 🇩🇪 869 71 2ms 5 Jun 2022 689th Irratix 🇳🇱 869 71 3ms 13 Jun 2022 689th michael-pruglo 🇺🇦 869 71 3ms 13 Jul 2022 689th stefangimmillaro 869 71 2ms 2 Jun 2023 689th kkoenig 869 71 3ms 21 Dec 2023 689th JohandeRuiter 🇳🇱 869 71 3ms 14 Sep 2024 689th masinag 🇮🇹 869 71 2ms 6 Oct 2024 700th dokutan 868 82 24ms 1 Jul 2024 701st nwellnhof 🇩🇪 867 53 7ms 4 May 2022 701st GrayJoKing 🇦🇺 867 53 7ms 6 May 2022 703rd dieggsy 867 97 41ms 8 Oct 2024 704th GolfingSuccess 🇬🇷 866 57 787ms 29 Aug 2025 705th Shanethegamer 🇺🇸 866 70 93ms 12 Dec 2022 705th Alessandro-Balconi 🇮🇹 866 70 88ms 26 Dec 2022 707th Andriamanitra 🇫🇮 865 54 42ms 21 Jul 2022 707th jared-hughes 865 54 39ms 12 Sep 2022 707th OhmNomNom 865 54 47ms 7 Oct 2022 707th olleicua 🇺🇸 865 54 41ms 21 Jan 2024 707th LostSyntax21 🇬🇧 865 54 41ms 12 Mar 2025 707th AbrahamJLR 🇻🇪 865 54 40ms 4 Jun 2025 707th vishal-mohanty 865 54 42ms 25 Aug 2025 714th MeWhenI 🇻🇦 865 85 44ms 27 Jun 2022 714th Shanethegamer 🇺🇸 865 85 42ms 15 May 2023 714th albanian-laundromat 865 85 45ms 25 Aug 2025 717th DialFrost 🇸🇬 864 64 5ms 10 Jul 2024 718th mtirado1 863 75 8ms 13 Aug 2022 719th TylerBloom 863 96 127ms 22 Mar 2024 720th shellbertt 🇨🇦 863 98 55ms 9 May 2022 720th iakolzin 863 98 54ms 26 May 2022 720th Betuaredead 863 98 56ms 5 Jan 2023 720th oceko 863 98 55ms 19 Feb 2024 720th dokutan 863 98 54ms 17 Mar 2024 720th cuzdav 863 98 57ms 4 May 2025 720th timhaj 🇸🇮 863 98 55ms 12 Sep 2025 720th Yax42 🇫🇷 863 98 53ms 4 Oct 2025 728th ovs-code 🇩🇪 863 133 42ms 8 Jul 2024 729th Steffan153 🇫🇮 862 82 1,270ms 23 Feb 2023 730th deadp4nda 🇩🇪 862 90 343ms 26 Apr 2024 730th 123mjb 862 90 346ms 23 Jun 2025 730th michelebastione 🇮🇹 862 90 314ms 24 Aug 2025 730th razvandmtr 🇷🇴 862 90 305ms 10 days ago 734th steffan-polygolf 861 73 85ms 23 Feb 2023 734th MWI-polygolf 861 73 81ms 6 Dec 2023 734th HumanoidCPU 861 73 80ms 7 May 2024 737th Steffan153 🇫🇮 861 78 82ms 4 Feb 2023 738th GrayJoKing 🇦🇺 860 56 416ms 15 Jan 2024 738th AlephSquirrel 860 56 704ms 21 Jan 2024 740th Setvizan 860 62 10ms 12 Jan 2023 740th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 740th arctouch-cristiannevianna 860 62 13ms 3 Apr 2023 740th Corxldyphik 860 62 13ms 11 Apr 2023 740th Blockyheadman 860 62 10ms 1 Nov 2023 740th ollyspooner 860 62 10ms 22 Nov 2023 740th itserasmus 860 62 13ms 25 Jan 2024 740th Jacob385 860 62 10ms 13 Mar 2024 740th junkondo-jp 860 62 10ms 30 Jun 2024 740th ShiraJoseph 🇺🇸 860 62 11ms 1 Mar 2025 750th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 First Prev 676–750 of 3,444 Next Last