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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 898th Thonoton 706 125 16ms 24 Feb 2023 898th sandorstormen 706 125 17ms 11 Mar 2023 898th MiranDaniel 🇨🇿 706 125 16ms 28 Apr 2023 898th VictorStenvers 🇳🇱 706 125 17ms 26 Jun 2024 898th Terobero 706 125 17ms 3 Sep 2024 898th LostSyntax21 🇬🇧 706 125 15ms 9 Sep 2024 898th jamesthekee 706 125 9ms 22 Jan 2025 908th olleicua 🇺🇸 705 44 43ms 11 Mar 2024 909th jstanley0 705 77 34ms 5 Feb 2022 909th olivermrose 🇺🇸 705 77 35ms 5 Dec 2022 911th jipsong 🇩🇪 705 116 81ms 25 Oct 2023 912th fitzdotlol 🇺🇸 703 101 11ms 7 Mar 2022 912th mrxz 🇳🇱 703 101 10ms 23 Jun 2024 914th snoozingnewt 🇺🇸 703 148 117ms 7 days ago 915th Natanaelel 🇸🇪 702 62 48ms 21 Jun 2022 916th dokutan 701 84 795ms 14 Mar 2023 916th alemelis 701 84 815ms 21 Aug 2024 918th TetraPengwin 701 124 2ms 14 Mar 2025 919th TobyBoyne 🇬🇧 701 126 9ms 28 Jan 2022 919th OllieBoyne 🇬🇧 701 126 9ms 2 Mar 2022 919th Anonymousellama21 701 126 9ms 14 Apr 2022 919th Trunksistor 🇫🇷 701 126 11ms 19 Apr 2022 919th docd 701 126 16ms 8 Aug 2022 919th LogicalJoe 701 126 16ms 4 May 2023 919th pde-bakk 🇳🇱 701 126 9ms 23 Oct 2023 919th mstang107 701 126 10ms 20 Dec 2023 919th DGipe 701 126 9ms 13 May 2024 919th retrohun 701 126 9ms 18 Oct 2024 919th yokasuretsu 701 126 10ms 23 Jan 2025 919th bknower 701 126 9ms 26 Jun 2025 931st inverseLorentz 🇦🇺 701 160 166ms 14 May 2024 932nd msbranicky 700 190 261ms 3 Oct 2023 933rd albanian-laundromat 699 186 41ms 10 days ago 934th retrohun 697 75 2ms 9 Nov 2022 935th HumanoidCPU 697 158 62ms 3 Mar 2025 936th DialFrost 🇸🇬 696 84 5ms 14 Aug 2024 937th ShiraJoseph 🇺🇸 696 102 9ms 28 Jan 2023 937th itserasmus 696 102 10ms 17 Jan 2024 937th eranws 696 102 10ms 23 Dec 2024 940th MeWhenI 🇻🇦 695 67 3ms 15 Apr 2023 941st jacklynnepenick 695 127 9ms 15 Feb 2022 941st Pena86 695 127 15ms 14 Sep 2022 941st pascscha 695 127 9ms 18 Sep 2022 941st DrPiranoid 695 127 10ms 8 Oct 2022 941st QuincyNash 🇺🇸 695 127 9ms 13 Nov 2022 941st epic-programmer-guy 695 127 10ms 21 Dec 2023 941st AdamMorris377 695 127 9ms 29 Jul 2024 941st 40fied4t 695 127 10ms 15 May 2025 941st Luke44565 695 127 9ms 10 Aug 2025 941st jacekwladzinski 695 127 11ms 5 Oct 2025 951st klixel 🇨🇦 695 174 156ms 7 Jun 2023 952nd emgordon154 694 213 1,687ms 17 Sep 2025 953rd janbehrens 🇩🇪 693 85 306ms 23 Jun 2023 954th MeWhenI 🇻🇦 692 110 2,843ms 24 Oct 2024 955th HumanoidCPU 692 136 2ms 4 Mar 2025 956th janbehrens 🇩🇪 691 155 321ms 23 Jun 2023 957th Yewzir 🇧🇪 690 112 338ms 1 Dec 2023 957th michelebastione 🇮🇹 690 112 357ms 20 Sep 2025 959th gchenfc 690 128 9ms 24 Jan 2022 959th pyrolitic 🇮🇪 690 128 10ms 5 Apr 2022 959th hellwue 690 128 10ms 8 Feb 2023 959th Wildst 690 128 10ms 4 Aug 2023 959th sleepyStick 690 128 10ms 7 Dec 2023 959th damoose717 690 128 10ms 23 May 2025 959th RaBa21 🇭🇺 690 128 20ms 19 Jul 2025 966th gnuvince 689 45 2ms 29 Jun 2025 967th RockOfStone 689 126 2ms 30 Jul 2022 968th cbrt-x 689 163 160ms 18 Sep 2023 969th kkoenig 689 193 259ms 1 Jan 2024 969th rifatx 689 193 245ms 23 Jul 2024 971st JunkIce 688 111 486ms 3 Dec 2024 971st CheeseCake628 🇳🇴 688 111 581ms 18 Oct 2025 973rd MeWhenI 🇻🇦 687 81 247ms 28 Jan 2023 974th violeta-desantis 687 137 2ms 27 Sep 2023 975th luuumine 🇫🇷 687 176 152ms 2 days ago First Prev 901–975 of 1,549 Next Last
