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 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 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 Multitap Input 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 ><> 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 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 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 Multitap Input 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 750th janbehrens 🇩🇪 754 146 54ms 23 Jun 2023 752nd jupj 🇫🇮 753 125 2ms 31 Aug 2022 753rd emgordon154 753 128 577ms 3 Jun 2025 754th edsrzf 🇳🇿 753 173 41ms 28 Jun 2025 755th Steffan153 🇫🇮 752 135 6ms 12 Mar 2023 756th KrausRaus 🇺🇸 751 117 2ms 15 Oct 2023 757th elgan65536 751 161 145ms 9 Nov 2023 758th Shanethegamer 🇺🇸 751 251 1,538ms 25 Jan 2025 759th dokutan 749 102 396ms 13 Aug 2024 760th chlorobenzene12 749 116 2ms 26 Dec 2022 761st dylanarmstrong 748 95 9ms 12 Jan 2024 761st junkondo-jp 748 95 9ms 2 Jun 2024 763rd Tess2662 748 118 10ms 8 Sep 2022 763rd CheeseCake628 🇳🇴 748 118 10ms 20 Mar 2023 763rd randolchance 748 118 9ms 20 Mar 2023 763rd jeff-at-tamer-dot-codes 🇺🇸 748 118 9ms 19 May 2023 763rd gabe-gallegos 748 118 9ms 19 May 2024 763rd martion2007 748 118 10ms 14 Aug 2024 763rd orifu 748 118 9ms 4 Nov 2024 763rd TheZwierzLF 🇵🇱 748 118 10ms 27 May 2025 763rd addmai 748 118 9ms 30 Jul 2025 772nd edsrzf 🇳🇿 748 134 41ms 28 Jun 2025 773rd tobeannouncd 748 150 144ms 20 Dec 2024 774th ovs-code 🇩🇪 747 70 2ms 8 Nov 2022 775th bac0id 747 126 2ms 3 Jul 2024 776th MeWhenI 🇻🇦 747 129 424ms 4 Aug 2023 777th 4hg 🇺🇸 746 79 950ms 8 Dec 2022 777th anter69 🇭🇺 746 79 1,014ms 19 Feb 2023 777th emgordon154 746 79 1,037ms 25 Nov 2024 777th Shanethegamer 🇺🇸 746 79 968ms 9 Apr 2025 781st Shanethegamer 🇺🇸 746 111 106ms 12 days ago 782nd lacrosse 744 73 37ms 17 days ago 783rd MeWhenI 🇻🇦 744 123 333ms 30 Jan 2023 784th primo-ppcg 🇹🇭 744 144 409ms 4 Apr 2022 784th Lydxn 🇨🇦 744 144 676ms 5 Apr 2022 784th rotary-o 🇯🇵 744 144 578ms 5 May 2023 784th Steffan153 🇫🇮 744 144 402ms 24 Feb 2024 784th Jacob385 744 144 550ms 28 Oct 2025 789th bac0id 744 148 60ms 3 Jul 2024 790th BREMAUCY 🇫🇷 744 316 13ms 23 hours ago 791st HumanoidCPU 743 179 278ms 3 Mar 2025 792nd KatieLG 🇬🇧 742 103 408ms 27 Oct 2024 793rd RYNO8 742 119 9ms 18 Feb 2022 793rd eshilo-draper 742 119 11ms 10 Oct 2022 793rd georgehulme 742 119 10ms 12 Oct 2022 793rd Omega65536 🇩🇪 742 119 11ms 24 Nov 2022 793rd Ripick 742 119 10ms 2 Feb 2023 793rd Ythaenagor 742 119 10ms 5 Aug 2024 793rd PyryL 🇫🇮 742 119 10ms 20 Aug 2024 793rd JunkIce 742 119 9ms 25 Nov 2024 793rd Stockoh 🇫🇷 742 119 9ms 13 Feb 2025 793rd Alban-Boissard 742 119 10ms 14 Jun 2025 793rd Flekay 🇩🇪 742 119 9ms 10 Jul 2025 804th BambooleanLogic 🇸🇪 740 96 9ms 20 Aug 2022 804th vroup 🇩🇰 740 96 9ms 2 Oct 2022 804th Ultra814 740 96 9ms 17 Aug 2025 804th tomh1012 740 96 9ms 25 days ago 808th BlankSpruce 739 149 57ms 16 Jan 2022 809th weliveinhell 🇭🇹 739 180 262ms 4 Oct 2023 809th emgordon154 739 180 264ms 20 Feb 2025 811th emplv 🇱🇻 739 182 25ms 31 Oct 2022 812th KenanSi 738 42 2ms 24 Feb 2022 812th Natanaelel 🇸🇪 738 42 2ms 21 Jun 2022 812th GolfingSuccess 🇬🇷 738 42 2ms 31 Dec 2022 815th edsrzf 🇳🇿 738 164 311ms 29 Jul 2025 816th SirBogman 🇺🇸 737 59 34ms 8 Sep 2022 817th billings7 🇬🇧 736 105 353ms 12 Nov 2023 817th MiffOttah 736 105 402ms 28 Nov 2024 819th fkantelberg 736 120 9ms 18 Jul 2023 819th Bmrl7 736 120 9ms 29 Feb 2024 819th elgan65536 736 120 16ms 1 Apr 2024 819th robin-scragg 736 120 10ms 25 Jul 2025 823rd jared-hughes 736 128 2ms 17 Mar 2022 824th JRaspass 🇬🇧 735 181 264ms 23 Sep 2022 825th Waffle3z 734 74 32ms 12 Jan 2022 First Prev 751–825 of 1,565 Next Last