Collatz in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 715th michael-pruglo 🇺🇦 870 71 2ms 13 Jul 2022 715th stefangimmillaro 870 71 2ms 2 Jun 2023 715th kkoenig 870 71 2ms 21 Dec 2023 715th JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 715th masinag 🇮🇹 870 71 2ms 6 Oct 2024 726th AlephSquirrel 870 80 12ms 20 Apr 2023 726th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 726th error256 870 80 30ms 16 days ago 729th CaedenHarper 🇨🇦 869 54 1,364ms 27 Sep 2025 729th sean-niemann 🇺🇸 869 54 1,464ms 27 Sep 2025 729th albanian-laundromat 869 54 1,533ms 14 Nov 2025 729th xsot 🇸🇬 869 54 1,352ms 15 Nov 2025 733rd nwellnhof 🇩🇪 868 53 7ms 4 May 2022 733rd GrayJoKing 🇦🇺 868 53 7ms 6 May 2022 735th Shanethegamer 🇺🇸 868 97 110ms 15 Apr 2025 735th GolfingSuccess 🇬🇷 868 97 102ms 28 Nov 2025 735th DialFrost 🇸🇬 868 97 117ms 1 Dec 2025 738th kg583 🇺🇸 868 105 13ms 22 days ago 738th Steffan153 🇫🇮 868 105 13ms 17 days ago 740th albanian-laundromat 867 73 532ms 16 Dec 2025 741st Shanethegamer 🇺🇸 867 85 38ms 15 May 2023 741st albanian-laundromat 867 85 40ms 25 Aug 2025 743rd dieggsy 867 97 28ms 8 Oct 2024 744th ovs-code 🇩🇪 867 133 42ms 8 Jul 2024 745th 123mjb 866 96 366ms 20 Nov 2025 745th noescareno 866 96 366ms 21 Nov 2025 747th emgordon154 866 159 1,606ms 24 Dec 2025 747th DialFrost 🇸🇬 866 159 1,779ms 17 Jan 2026 749th DialFrost 🇸🇬 865 64 7ms 10 Jul 2024 750th TylerBloom 864 96 123ms 22 Mar 2024 751st shellbertt 🇨🇦 864 98 61ms 9 May 2022 751st iakolzin 864 98 58ms 26 May 2022 751st Betuaredead 864 98 62ms 5 Jan 2023 751st oceko 864 98 60ms 19 Feb 2024 751st cuzdav 864 98 60ms 4 May 2025 751st timhaj 🇸🇮 864 98 60ms 12 Sep 2025 751st Yax42 🇫🇷 864 98 61ms 4 Oct 2025 751st liamjermy6 864 98 68ms 3 days ago 759th emplv 🇱🇻 864 110 294ms 5 May 2022 759th Shanethegamer 🇺🇸 864 110 293ms 21 Nov 2023 759th edsrzf 🇳🇿 864 110 267ms 28 Nov 2024 759th targrik 864 110 282ms 30 Jun 2025 763rd nwellnhof 🇩🇪 863 51 40ms 4 May 2022 763rd primo-ppcg 🇹🇭 863 51 42ms 6 May 2022 763rd janlelis 863 51 38ms 10 May 2022 763rd Natanaelel 🇸🇪 863 51 40ms 2 Jun 2022 763rd blaztoma 🇱🇹 863 51 38ms 25 days ago 768th deadp4nda 🇩🇪 863 90 374ms 26 Apr 2024 768th 123mjb 863 90 367ms 23 Jun 2025 768th michelebastione 🇮🇹 863 90 400ms 24 Aug 2025 768th razvandmtr 🇷🇴 863 90 395ms 6 Nov 2025 772nd Steffan153 🇫🇮 862 82 1,323ms 23 Feb 2023 773rd GrayJoKing 🇦🇺 861 56 437ms 15 Jan 2024 773rd AlephSquirrel 861 56 396ms 21 Jan 2024 773rd CaedenHarper 🇨🇦 861 56 484ms 26 Jan 2026 776th steffan-polygolf 861 73 92ms 23 Feb 2023 776th MWI-polygolf 861 73 92ms 6 Dec 2023 776th HumanoidCPU 861 73 82ms 7 May 2024 779th Yewzir 🇧🇪 861 160 1,887ms 14 Nov 2025 780th Setvizan 860 62 13ms 12 Jan 2023 780th GreenBeansAgainstVeganism 860 62 11ms 13 Jan 2023 780th arctouch-cristiannevianna 860 62 12ms 3 Apr 2023 780th Corxldyphik 860 62 10ms 11 Apr 2023 780th Blockyheadman 860 62 10ms 1 Nov 2023 780th ollyspooner 860 62 11ms 22 Nov 2023 780th itserasmus 860 62 11ms 25 Jan 2024 780th Jacob385 860 62 10ms 13 Mar 2024 780th junkondo-jp 860 62 11ms 30 Jun 2024 780th ShiraJoseph 🇺🇸 860 62 11ms 1 Mar 2025 780th tomh1012 860 62 12ms 3 Dec 2025 791st yzhs 🇩🇪 860 65 20ms 16 Jun 2022 791st rollershutter 860 65 20ms 9 Sep 2022 791st bac0id 860 65 21ms 26 Sep 2023 791st robin-scragg 860 65 23ms 8 Jun 2025 791st RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 791st TransformLikeATensor 860 65 19ms 17 Oct 2025 797th Andriamanitra 🇫🇮 860 67 144ms 26 Apr 2023 798th ulucs 859 35 9ms 8 May 2022 798th bstrat 859 35 9ms 6 Jun 2024 798th wh3n3v3r 🇨🇿 859 35 8ms 18 Nov 2024 First Prev 721–800 of 3,641 Next Last