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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 561st mtirado1 804 108 2ms 6 May 2023 562nd typeswitch-dev 🇵🇹 804 121 8ms 14 Aug 2023 563rd Babafaba 803 94 475ms 28 Nov 2025 563rd snoozingnewt 🇨🇦 803 94 497ms 14 days ago 565th btjones0 803 110 9ms 25 Jan 2022 565th adamnielson42 🇺🇸 803 110 10ms 25 Apr 2023 565th sultan 803 110 10ms 24 Feb 2024 565th fgrosshans 🇫🇷 803 110 10ms 16 Jul 2024 565th InigoK 🇺🇸 803 110 9ms 22 Sep 2025 565th albanian-laundromat 803 110 10ms 7 Nov 2025 565th vhoulbreque 🇫🇷 803 110 10ms 25 Nov 2025 572nd madex 🇩🇪 803 115 2ms 10 Apr 2022 572nd FragmentedCurve 803 115 2ms 22 Nov 2023 572nd mathisfun271 803 115 2ms 5 Feb 2024 575th Shanethegamer 🇺🇸 803 168 25ms 28 Apr 2022 576th akshatj27 🇦🇶 799 68 37ms 10 Jan 2022 576th SirBogman 🇺🇸 799 68 38ms 19 May 2022 576th Shanethegamer 🇺🇸 799 68 37ms 27 May 2022 576th Haksell 🇦🇶 799 68 37ms 23 Feb 2023 576th anter69 🇭🇺 799 68 38ms 20 Nov 2023 581st Yewzir 🇧🇪 799 185 1,707ms 21 May 2024 582nd igmcdowell 798 89 10ms 24 Feb 2022 582nd inventshah 798 89 10ms 21 Jun 2022 582nd olleicua 🇺🇸 798 89 10ms 3 Feb 2024 582nd kpal81xd 798 89 10ms 15 Sep 2024 582nd Shanethegamer 🇺🇸 798 89 140ms 8 Jan 2025 582nd emplv 🇱🇻 798 89 134ms 28 Mar 2025 582nd ovs-code 🇩🇪 798 89 142ms 17 Apr 2025 589th adyache 🇺🇸 798 92 8ms 2 Aug 2023 590th Shanethegamer 🇺🇸 797 115 374ms 21 Apr 2022 591st neihousaigaai 796 111 10ms 11 Jan 2022 591st knutae 🇳🇴 796 111 9ms 18 Jan 2022 591st rschwa6308 🇺🇸 796 111 10ms 22 Mar 2023 591st zbreit 🇺🇸 796 111 9ms 22 Mar 2023 591st plcc0 796 111 10ms 3 Mar 2025 591st emgordon154 796 111 10ms 25 Mar 2025 591st BREMAUCY 🇫🇷 796 111 10ms 15 Apr 2025 591st now4est 🇯🇵 796 111 10ms 25 Sep 2025 599th MeWhenI 🇻🇦 796 116 2ms 5 Jul 2024 600th stefangimmillaro 796 152 147ms 28 Oct 2023 601st SirBogman 🇺🇸 795 39 42ms 4 Oct 2022 602nd prplz 🇦🇺 795 70 256ms 19 Jan 2022 602nd SirBogman 🇺🇸 795 70 252ms 19 May 2022 604th error256 794 74 742ms 21 days ago 605th Salutations45 792 66 2ms 2 Jan 2025 606th KrausRaus 🇺🇸 791 106 5ms 11 Nov 2023 607th MeWhenI 🇻🇦 791 112 144ms 4 Aug 2023 608th sean-niemann 🇺🇸 791 127 40ms 1 Dec 2023 609th ovs-code 🇩🇪 791 153 250ms 21 Jun 2023 610th GrayJoKing 🇦🇺 790 59 3ms 14 Jan 2022 610th Shanethegamer 🇺🇸 790 59 3ms 20 Jun 2022 612th weliveinhell 🇭🇹 789 90 9ms 11 Jan 2024 612th Shanethegamer 🇺🇸 789 90 2,336ms 28 Oct 2024 612th DialFrost 🇸🇬 789 90 138ms 3 Nov 2024 615th tomh1012 789 98 419ms 31 Jan 2022 615th pkim 789 98 439ms 6 Apr 2023 615th danielxbauer 789 98 428ms 6 Apr 2023 615th meinsiedler 789 98 442ms 6 Apr 2023 615th postie77 789 98 448ms 8 May 2023 620th m-tkach 🇺🇦 789 117 1ms 11 Jan 2022 620th prestosilver 🇺🇸 789 117 2ms 16 Dec 2025 622nd 4hg 🇺🇸 788 69 35ms 30 Nov 2022 622nd Andriamanitra 🇫🇮 788 69 36ms 17 Apr 2023 624th guilhem-roy 🇫🇷 788 112 9ms 5 Jun 2022 624th ahmetdemirag 🇨🇾 788 112 10ms 30 Jun 2024 624th CommandLeo 🇮🇹 788 112 10ms 3 Nov 2025 624th denkyuu1 788 112 10ms 11 days ago 628th dokutan 787 130 7ms 21 Jun 2024 629th edsrzf 🇳🇿 787 133 1,370ms 26 Apr 2025 630th LHLaurini 🇧🇷 787 141 61ms 17 Jul 2024 631st SirBogman 🇺🇸 786 96 459ms 16 Jan 2024 632nd DialFrost 🇸🇬 786 166 41ms 7 May 2025 633rd MeWhenI 🇻🇦 785 137 2ms 12 Sep 2022 634th lynn 785 154 150ms 11 Mar 2022 634th The3gs 785 154 174ms 18 Aug 2023 636th msbranicky 784 112 2ms 10 Oct 2023 637th DialFrost 🇸🇬 784 113 114ms 24 May 2025 638th MichalMarsalek 🇨🇿 784 117 412ms 21 Apr 2022 639th sean-niemann 🇺🇸 783 118 1ms 3 Feb 2024 640th AlephSquirrel 783 130 6ms 21 Oct 2024 First Prev 561–640 of 1,601 Next Last