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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 700th kaascevich 873 72 104ms 8 Jul 2025 700th madeforlosers 873 72 97ms 17 Mar 2026 703rd GrayJoKing 🇦🇺 873 74 66ms 1 Nov 2023 704th c0d3-4-F00d 🇩🇪 873 89 407ms 5 May 2022 704th fkantelberg 873 89 467ms 15 Jul 2023 704th bac0id 873 89 495ms 26 Sep 2023 704th TRexOnGit 873 89 387ms 16 Feb 2024 708th inventshah 873 97 58ms 6 May 2022 708th emgordon154 873 97 60ms 8 Feb 2026 710th HPWiz 🇳🇿 872 49 239ms 4 May 2022 710th JayXon 🇺🇸 872 49 246ms 5 May 2022 710th Steffan153 🇫🇮 872 49 261ms 10 Dec 2022 710th ovs-code 🇩🇪 872 49 426ms 24 Oct 2023 710th sean-niemann 🇺🇸 872 49 280ms 12 Jul 2024 715th DialFrost 🇸🇬 872 86 40ms 24 Oct 2024 715th stefangimmillaro 872 86 39ms 14 Jan 2025 717th janbehrens 🇩🇪 872 90 467ms 21 Apr 2023 717th Yewzir 🇧🇪 872 90 459ms 22 Apr 2023 717th Ripick 872 90 459ms 27 Nov 2024 717th emgordon154 872 90 441ms 10 Dec 2025 721st kg583 🇺🇸 872 105 11ms 14 Mar 2026 721st Steffan153 🇫🇮 872 105 12ms 19 Mar 2026 723rd MeWhenI 🇻🇦 872 109 346ms 9 Feb 2023 724th GolfingSuccess 🇬🇷 870 71 2ms 5 May 2022 724th emplv 🇱🇻 870 71 2ms 5 May 2022 724th JayXon 🇺🇸 870 71 2ms 7 May 2022 724th m-tkach 🇺🇦 870 71 2ms 15 May 2022 724th nwellnhof 🇩🇪 870 71 2ms 5 Jun 2022 724th Irratix 🇳🇱 870 71 2ms 13 Jun 2022 724th michael-pruglo 🇺🇦 870 71 2ms 13 Jul 2022 724th stefangimmillaro 870 71 2ms 2 Jun 2023 724th kkoenig 870 71 2ms 21 Dec 2023 724th JohandeRuiter 🇳🇱 870 71 2ms 14 Sep 2024 724th masinag 🇮🇹 870 71 2ms 6 Oct 2024 724th Herbert00709 🇵🇱 870 71 3ms 8 days ago 736th AlephSquirrel 870 80 12ms 20 Apr 2023 736th ashtraypettingzoo 🇺🇸 870 80 14ms 1 Apr 2024 738th CaedenHarper 🇨🇦 869 54 875ms 27 Sep 2025 738th sean-niemann 🇺🇸 869 54 924ms 27 Sep 2025 738th albanian-laundromat 🇺🇸 869 54 920ms 14 Nov 2025 738th xsot 🇸🇬 869 54 916ms 15 Nov 2025 742nd error256 869 80 18ms 19 Mar 2026 743rd ovs-code 🇩🇪 869 133 42ms 8 Jul 2024 744th nwellnhof 🇩🇪 868 53 6ms 4 May 2022 744th GrayJoKing 🇦🇺 868 53 7ms 6 May 2022 746th Shanethegamer 🇺🇸 868 97 110ms 15 Apr 2025 746th GolfingSuccess 🇬🇷 868 97 102ms 28 Nov 2025 746th DialFrost 🇸🇬 868 97 109ms 1 Dec 2025 749th albanian-laundromat 🇺🇸 867 73 532ms 16 Dec 2025 750th Shanethegamer 🇺🇸 867 85 38ms 15 May 2023 750th albanian-laundromat 🇺🇸 867 85 40ms 25 Aug 2025 752nd dieggsy 867 97 31ms 8 Oct 2024 753rd JayXon 🇺🇸 867 157 1,723ms 14 Sep 2025 754th 123mjb 866 96 515ms 20 Nov 2025 754th noescareno 866 96 450ms 21 Nov 2025 756th DialFrost 🇸🇬 865 64 5ms 10 Jul 2024 757th shellbertt 🇨🇦 864 98 59ms 9 May 2022 757th iakolzin 864 98 64ms 26 May 2022 757th Betuaredead 864 98 62ms 5 Jan 2023 757th oceko 864 98 58ms 19 Feb 2024 757th cuzdav 864 98 61ms 4 May 2025 757th timhaj 🇸🇮 864 98 64ms 12 Sep 2025 757th Yax42 🇫🇷 864 98 63ms 4 Oct 2025 757th liamjermy6 864 98 64ms 26 days ago 765th emplv 🇱🇻 864 110 348ms 5 May 2022 765th Shanethegamer 🇺🇸 864 110 309ms 21 Nov 2023 765th targrik 864 110 340ms 30 Jun 2025 768th nwellnhof 🇩🇪 863 51 39ms 4 May 2022 768th primo-ppcg 🇹🇭 863 51 41ms 6 May 2022 768th janlelis 863 51 40ms 10 May 2022 768th Natanaelel 🇸🇪 863 51 42ms 2 Jun 2022 768th blaztoma 🇱🇹 863 51 40ms 11 Mar 2026 773rd deadp4nda 🇩🇪 863 90 412ms 26 Apr 2024 773rd 123mjb 863 90 422ms 23 Jun 2025 773rd razvandmtr 🇷🇴 863 90 527ms 6 Nov 2025 776th TylerBloom 863 96 118ms 22 Mar 2024 777th GrayJoKing 🇦🇺 861 56 470ms 15 Jan 2024 777th AlephSquirrel 861 56 419ms 21 Jan 2024 777th CaedenHarper 🇨🇦 861 56 379ms 26 Jan 2026 780th steffan-polygolf 861 73 97ms 23 Feb 2023 780th MWI-polygolf 861 73 93ms 6 Dec 2023 780th HumanoidCPU 861 73 91ms 7 May 2024 783rd Yewzir 🇧🇪 861 158 1,596ms 10 days ago 784th Setvizan 860 62 11ms 12 Jan 2023 784th GreenBeansAgainstVeganism 860 62 13ms 13 Jan 2023 784th arctouch-cristiannevianna 860 62 12ms 3 Apr 2023 784th Corxldyphik 860 62 11ms 11 Apr 2023 784th Blockyheadman 860 62 15ms 1 Nov 2023 784th ollyspooner 860 62 11ms 22 Nov 2023 784th itserasmus 860 62 13ms 25 Jan 2024 784th Jacob385 860 62 11ms 13 Mar 2024 784th junkondo-jp 860 62 12ms 30 Jun 2024 784th ShiraJoseph 🇺🇸 860 62 11ms 1 Mar 2025 784th tomh1012 860 62 11ms 3 Dec 2025 784th scpchicken 🇵🇼 860 62 11ms 5 days ago 796th yzhs 🇩🇪 860 65 20ms 16 Jun 2022 796th rollershutter 860 65 20ms 9 Sep 2022 796th bac0id 860 65 21ms 26 Sep 2023 796th robin-scragg 860 65 23ms 8 Jun 2025 796th RaBa21 🇭🇺 860 65 26ms 11 Jul 2025 First Prev 701–800 of 3,667 Next Last