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 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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 721st DialFrost 🇸🇬 765 133 6ms 11 Dec 2024 722nd jerrandolph 765 174 294ms 20 Oct 2023 723rd CatsAreFluffy 764 57 47ms 9 Jan 2023 723rd xsot 🇸🇬 764 57 52ms 2 Feb 2024 725th Andrey-Plotnikov 764 93 10ms 21 Jun 2025 725th Protothor 764 93 11ms 9 Jul 2025 727th kejcao 🇨🇦 764 147 152ms 3 Aug 2024 728th retrohun 763 121 1ms 30 Dec 2022 728th abc7-12 763 121 1ms 26 Jun 2024 730th annaproxy 763 134 15ms 24 Dec 2022 731st Shanethegamer 🇺🇸 762 73 263ms 14 Jun 2024 732nd DialFrost 🇸🇬 762 114 2ms 1 Nov 2024 733rd MeWhenI 🇻🇦 762 194 1,694ms 7 Nov 2025 734th martinnorling 🇸🇪 761 116 9ms 18 Feb 2022 734th Indivicivet 761 116 9ms 9 May 2022 734th Bonjour27891 🇻🇳 761 116 9ms 15 Jul 2022 734th tri1212 🇻🇳 761 116 10ms 16 Jul 2022 734th MichalMarsalek 🇨🇿 761 116 9ms 30 Nov 2022 734th yzhs 🇩🇪 761 116 9ms 25 Jun 2023 734th Attero 🇸🇪 761 116 9ms 2 Jan 2024 734th RobertHoeh 761 116 10ms 9 Apr 2024 734th Mabeloid 🇳🇴 761 116 10ms 7 Oct 2024 734th rollershutter 761 116 10ms 24 Feb 2025 734th JOrE20 761 116 10ms 24 days ago 745th edsrzf 🇳🇿 761 132 43ms 31 Dec 2025 746th MeWhenI 🇻🇦 760 128 8ms 21 Jul 2023 747th MeWhenI 🇻🇦 760 146 61ms 13 Nov 2022 747th janbehrens 🇩🇪 760 146 67ms 23 Jun 2023 749th Shanethegamer 🇺🇸 758 108 94ms 13 Nov 2023 750th Ripick 758 121 360ms 11 Jul 2024 751st Yewzir 🇧🇪 758 135 8ms 16 Dec 2023 751st Maximizer02 758 135 7ms 24 Sep 2024 753rd DialFrost 🇸🇬 758 142 2ms 14 Sep 2024 754th nwellnhof 🇩🇪 757 88 31ms 12 Jul 2022 755th c0d3-4-F00d 🇩🇪 757 122 2ms 21 Feb 2022 756th stackofbears 756 41 2ms 20 Feb 2022 756th akamayu-ouo 🇹🇼 756 41 2ms 8 Jul 2024 756th edsrzf 🇳🇿 756 41 41ms 3 Nov 2025 756th AlephSquirrel 756 41 2ms 8 Nov 2025 760th tomh1012 756 94 35ms 8 days ago 761st albanian-laundromat 756 133 42ms 7 Sep 2025 762nd tatzyr 🇯🇵 755 72 36ms 28 Dec 2024 763rd edsrzf 🇳🇿 755 78 386ms 11 Oct 2025 764th CedricGebistorf 755 117 10ms 19 Feb 2022 764th sjrct 755 117 9ms 5 Aug 2024 764th FranklinJiaChen 755 117 10ms 10 Aug 2024 764th Artemis21 🇬🇧 755 117 10ms 21 Dec 2024 768th edsrzf 🇳🇿 755 173 41ms 28 Jun 2025 769th CaedenHarper 🇨🇦 754 78 823ms 30 Sep 2025 770th emplv 🇱🇻 754 101 111ms 6 Dec 2022 771st Steffan153 🇫🇮 754 135 6ms 12 Mar 2023 772nd JOrE20 754 179 26ms 18 Feb 2026 773rd emgordon154 753 128 553ms 3 Jun 2025 774th elgan65536 🇺🇸 753 161 150ms 9 Nov 2023 775th KrausRaus 🇺🇸 751 117 2ms 15 Oct 2023 776th iczelia 🇩🇪 751 123 1ms 24 Sep 2025 777th Shanethegamer 🇺🇸 751 251 1,442ms 25 Jan 2025 778th emgordon154 750 95 136ms 15 Nov 2024 779th bac0id 750 148 67ms 3 Jul 2024 780th chlorobenzene12 749 116 2ms 26 Dec 2022 781st tobeannouncd 749 150 144ms 20 Dec 2024 782nd dylanarmstrong 748 95 10ms 12 Jan 2024 782nd junkondo-jp 748 95 11ms 2 Jun 2024 784th Tess2662 748 118 9ms 8 Sep 2022 784th CheeseCake628 🇳🇴 748 118 9ms 20 Mar 2023 784th randolchance 748 118 10ms 20 Mar 2023 784th jeff-at-tamer-dot-codes 🇺🇸 748 118 10ms 19 May 2023 784th gabe-gallegos 748 118 9ms 19 May 2024 784th martion2007 748 118 10ms 14 Aug 2024 784th orifu 748 118 9ms 4 Nov 2024 784th TheZwierzLF 🇵🇱 748 118 10ms 27 May 2025 784th addmai 748 118 10ms 30 Jul 2025 793rd ovs-code 🇩🇪 747 70 2ms 8 Nov 2022 794th m42km 747 101 414ms 4 Feb 2024 795th MeWhenI 🇻🇦 747 129 449ms 4 Aug 2023 796th 4hg 🇺🇸 746 79 1,316ms 8 Dec 2022 796th anter69 🇭🇺 746 79 1,340ms 19 Feb 2023 796th emgordon154 746 79 1,321ms 25 Nov 2024 796th Shanethegamer 🇺🇸 746 79 1,255ms 9 Apr 2025 800th stefangimmillaro 746 102 107ms 19 Oct 2022 First Prev 721–800 of 1,616 Next Last