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 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 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 751st albanian-laundromat 753 133 43ms 7 Sep 2025 752nd Steffan153 🇫🇮 752 135 7ms 12 Mar 2023 753rd edsrzf 🇳🇿 752 173 43ms 28 Jun 2025 754th KrausRaus 🇺🇸 751 117 2ms 15 Oct 2023 755th elgan65536 751 161 150ms 9 Nov 2023 756th Shanethegamer 🇺🇸 751 251 1,455ms 25 Jan 2025 757th dokutan 749 102 441ms 13 Aug 2024 758th chlorobenzene12 749 116 2ms 26 Dec 2022 759th dylanarmstrong 748 95 9ms 12 Jan 2024 759th junkondo-jp 748 95 9ms 2 Jun 2024 761st Tess2662 748 118 10ms 8 Sep 2022 761st CheeseCake628 🇳🇴 748 118 10ms 20 Mar 2023 761st randolchance 748 118 10ms 20 Mar 2023 761st jeff-at-tamer-dot-codes 🇺🇸 748 118 9ms 19 May 2023 761st gabe-gallegos 748 118 10ms 19 May 2024 761st martion2007 748 118 11ms 14 Aug 2024 761st orifu 748 118 9ms 4 Nov 2024 761st TheZwierzLF 🇵🇱 748 118 9ms 27 May 2025 761st addmai 748 118 9ms 30 Jul 2025 770th edsrzf 🇳🇿 748 134 44ms 28 Jun 2025 771st tobeannouncd 748 150 160ms 20 Dec 2024 772nd ovs-code 🇩🇪 747 70 3ms 8 Nov 2022 773rd bac0id 747 126 2ms 3 Jul 2024 774th MeWhenI 🇻🇦 747 129 424ms 4 Aug 2023 775th 4hg 🇺🇸 746 79 950ms 8 Dec 2022 775th anter69 🇭🇺 746 79 1,014ms 19 Feb 2023 775th emgordon154 746 79 1,037ms 25 Nov 2024 775th Shanethegamer 🇺🇸 746 79 968ms 9 Apr 2025 779th Shanethegamer 🇺🇸 746 111 97ms 2 days ago 780th lacrosse 744 73 32ms 7 days ago 781st MeWhenI 🇻🇦 744 123 326ms 30 Jan 2023 782nd primo-ppcg 🇹🇭 744 144 311ms 4 Apr 2022 782nd Lydxn 🇨🇦 744 144 305ms 5 Apr 2022 782nd rotary-o 🇯🇵 744 144 318ms 5 May 2023 782nd Steffan153 🇫🇮 744 144 305ms 24 Feb 2024 782nd Jacob385 744 144 348ms 28 Oct 2025 787th bac0id 744 148 65ms 3 Jul 2024 788th HumanoidCPU 743 179 266ms 3 Mar 2025 789th KatieLG 🇬🇧 742 103 456ms 27 Oct 2024 790th RYNO8 742 119 10ms 18 Feb 2022 790th eshilo-draper 742 119 9ms 10 Oct 2022 790th georgehulme 742 119 9ms 12 Oct 2022 790th Omega65536 🇩🇪 742 119 9ms 24 Nov 2022 790th Ripick 742 119 9ms 2 Feb 2023 790th Ythaenagor 742 119 10ms 5 Aug 2024 790th PyryL 🇫🇮 742 119 10ms 20 Aug 2024 790th JunkIce 742 119 10ms 25 Nov 2024 790th Stockoh 🇫🇷 742 119 11ms 13 Feb 2025 790th Alban-Boissard 742 119 10ms 14 Jun 2025 790th Flekay 🇩🇪 742 119 10ms 10 Jul 2025 801st BambooleanLogic 🇸🇪 740 96 9ms 20 Aug 2022 801st vroup 🇩🇰 740 96 9ms 2 Oct 2022 801st Ultra814 740 96 9ms 17 Aug 2025 801st tomh1012 740 96 9ms 14 days ago 805th BlankSpruce 739 149 55ms 16 Jan 2022 806th weliveinhell 🇭🇹 739 180 251ms 4 Oct 2023 806th emgordon154 739 180 264ms 20 Feb 2025 808th emplv 🇱🇻 739 182 28ms 31 Oct 2022 809th KenanSi 738 42 2ms 24 Feb 2022 809th Natanaelel 🇸🇪 738 42 3ms 21 Jun 2022 809th GolfingSuccess 🇬🇷 738 42 2ms 31 Dec 2022 812th edsrzf 🇳🇿 738 164 272ms 29 Jul 2025 813th SirBogman 🇺🇸 737 59 39ms 8 Sep 2022 814th billings7 🇬🇧 736 105 355ms 12 Nov 2023 814th MiffOttah 736 105 350ms 28 Nov 2024 816th fkantelberg 736 120 10ms 18 Jul 2023 816th Bmrl7 736 120 11ms 29 Feb 2024 816th elgan65536 736 120 15ms 1 Apr 2024 816th robin-scragg 736 120 10ms 25 Jul 2025 820th jared-hughes 735 128 2ms 17 Mar 2022 821st JRaspass 🇬🇧 735 181 272ms 23 Sep 2022 822nd Waffle3z 734 74 48ms 12 Jan 2022 822nd olleicua 🇺🇸 734 74 36ms 16 Feb 2024 822nd emgordon154 734 74 54ms 25 Jun 2024 825th commandblockguy 🇺🇸 734 104 832ms 1 Sep 2025 First Prev 751–825 of 1,557 Next Last