ISBN in all languages in bytes. 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 Bytes Time Submitted 715th msbranicky 768 115 10ms 25 Jul 2023 715th ArenaGrenade 768 115 10ms 19 Feb 2024 715th NickTheEASDude 🇺🇸 768 115 9ms 15 May 2024 715th dokutan 768 115 9ms 13 Aug 2024 715th maxgodfrey2004 🇨🇦 768 115 10ms 8 Jan 2025 715th Pyroan 768 115 10ms 21 Feb 2025 715th chartung17 768 115 10ms 24 Mar 2025 728th CatsAreFluffy 765 57 57ms 9 Jan 2023 728th xsot 🇸🇬 765 57 54ms 2 Feb 2024 730th DialFrost 🇸🇬 765 71 36ms 26 Dec 2024 731st edsrzf 🇳🇿 765 93 2,524ms 1 Sep 2025 732nd edsrzf 🇳🇿 765 107 80ms 28 Jun 2025 733rd GrayJoKing 🇦🇺 765 126 458ms 1 Mar 2022 734th DialFrost 🇸🇬 765 133 7ms 11 Dec 2024 735th jerrandolph 765 174 327ms 20 Oct 2023 736th MeWhenI 🇻🇦 765 194 1,694ms 7 Nov 2025 737th Andrey-Plotnikov 764 93 13ms 21 Jun 2025 737th Protothor 764 93 11ms 9 Jul 2025 739th retrohun 764 121 1ms 30 Dec 2022 739th abc7-12 764 121 1ms 26 Jun 2024 741st kejcao 🇨🇦 764 147 152ms 3 Aug 2024 742nd annaproxy 763 134 15ms 24 Dec 2022 743rd Shanethegamer 🇺🇸 762 73 263ms 14 Jun 2024 744th DialFrost 🇸🇬 762 114 2ms 1 Nov 2024 745th martinnorling 🇸🇪 761 116 9ms 18 Feb 2022 745th Indivicivet 761 116 9ms 9 May 2022 745th Bonjour27891 🇻🇳 761 116 9ms 15 Jul 2022 745th tri1212 🇻🇳 761 116 10ms 16 Jul 2022 745th MichalMarsalek 🇨🇿 761 116 9ms 30 Nov 2022 745th yzhs 🇩🇪 761 116 9ms 25 Jun 2023 745th Attero 🇸🇪 761 116 9ms 2 Jan 2024 745th RobertHoeh 761 116 10ms 9 Apr 2024 745th Mabeloid 🇳🇴 761 116 10ms 7 Oct 2024 745th rollershutter 761 116 10ms 24 Feb 2025 745th JOrE20 761 116 10ms 23 Feb 2026 756th edsrzf 🇳🇿 761 132 43ms 31 Dec 2025 757th MeWhenI 🇻🇦 761 146 88ms 13 Nov 2022 757th janbehrens 🇩🇪 761 146 89ms 23 Jun 2023 759th MeWhenI 🇻🇦 760 128 8ms 21 Jul 2023 760th Shanethegamer 🇺🇸 758 108 93ms 13 Nov 2023 761st Ripick 758 121 360ms 11 Jul 2024 762nd Yewzir 🇧🇪 758 135 8ms 16 Dec 2023 762nd Maximizer02 758 135 7ms 24 Sep 2024 764th DialFrost 🇸🇬 758 142 2ms 14 Sep 2024 765th nwellnhof 🇩🇪 757 88 31ms 12 Jul 2022 766th c0d3-4-F00d 🇩🇪 757 122 2ms 21 Feb 2022 767th stackofbears 756 41 2ms 20 Feb 2022 767th akamayu-ouo 🇹🇼 756 41 2ms 8 Jul 2024 767th AlephSquirrel 756 41 2ms 8 Nov 2025 770th tomh1012 756 94 12ms 27 days ago 771st albanian-laundromat 🇺🇸 756 133 42ms 7 Sep 2025 772nd tatzyr 🇯🇵 755 72 36ms 28 Dec 2024 773rd CedricGebistorf 755 117 10ms 19 Feb 2022 773rd sjrct 755 117 9ms 5 Aug 2024 773rd FranklinJiaChen 755 117 10ms 10 Aug 2024 773rd Artemis21 🇬🇧 755 117 10ms 21 Dec 2024 777th edsrzf 🇳🇿 755 173 41ms 28 Jun 2025 778th CaedenHarper 🇨🇦 754 78 1,013ms 30 Sep 2025 779th emplv 🇱🇻 754 101 108ms 6 Dec 2022 780th Steffan153 🇫🇮 754 135 7ms 12 Mar 2023 781st elgan65536 🇺🇸 754 161 156ms 9 Nov 2023 782nd JOrE20 754 179 26ms 18 Feb 2026 783rd emgordon154 753 128 553ms 3 Jun 2025 784th KrausRaus 🇺🇸 751 117 2ms 15 Oct 2023 785th iczelia 🇩🇪 751 123 1ms 24 Sep 2025 786th Shanethegamer 🇺🇸 751 251 1,453ms 25 Jan 2025 787th emgordon154 750 95 136ms 15 Nov 2024 788th bac0id 750 148 99ms 3 Jul 2024 789th chlorobenzene12 749 116 2ms 26 Dec 2022 790th tobeannouncd 749 150 144ms 20 Dec 2024 791st dylanarmstrong 748 95 10ms 12 Jan 2024 791st junkondo-jp 748 95 14ms 2 Jun 2024 793rd m42km 748 101 414ms 4 Feb 2024 794th Tess2662 748 118 9ms 8 Sep 2022 794th CheeseCake628 🇳🇴 748 118 9ms 20 Mar 2023 794th randolchance 748 118 10ms 20 Mar 2023 794th jeff-at-tamer-dot-codes 🇺🇸 748 118 10ms 19 May 2023 794th gabe-gallegos 748 118 9ms 19 May 2024 794th martion2007 748 118 10ms 14 Aug 2024 794th orifu 748 118 9ms 4 Nov 2024 First Prev 721–800 of 1,634 Next Last