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 Gray Code Decoder Gray Code Encoder 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 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 Gray Code Decoder Gray Code Encoder 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 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 798th jeff-at-tamer-dot-codes 🇺🇸 749 118 10ms 19 May 2023 798th gabe-gallegos 749 118 10ms 19 May 2024 798th martion2007 749 118 11ms 14 Aug 2024 798th orifu 749 118 11ms 4 Nov 2024 798th TheZwierzLF 🇵🇱 749 118 11ms 27 May 2025 798th addmai 749 118 10ms 30 Jul 2025 807th 4hg 🇺🇸 748 79 1,537ms 8 Dec 2022 807th anter69 🇭🇺 748 79 1,553ms 19 Feb 2023 807th emgordon154 748 79 1,508ms 25 Nov 2024 807th Shanethegamer 🇺🇸 748 79 1,481ms 9 Apr 2025 811th dylanarmstrong 748 95 13ms 12 Jan 2024 811th junkondo-jp 748 95 12ms 2 Jun 2024 813th m42km 748 101 541ms 4 Feb 2024 814th stefangimmillaro 748 102 108ms 19 Oct 2022 815th MeWhenI 🇻🇦 748 123 369ms 30 Jan 2023 816th ovs-code 🇩🇪 747 70 2ms 8 Nov 2022 817th dokutan 747 79 894ms 8 Sep 2025 818th MeWhenI 🇻🇦 746 96 136ms 25 Oct 2024 819th BlankSpruce 746 149 86ms 16 Jan 2022 820th HumanoidCPU 746 179 331ms 3 Mar 2025 821st emplv 🇱🇻 746 182 25ms 31 Oct 2022 822nd BREMAUCY 🇫🇷 746 316 13ms 15 Dec 2025 823rd lacrosse 745 73 35ms 28 Nov 2025 824th djeedjay 🇳🇱 745 124 1ms 16 Sep 2022 825th MeWhenI 🇻🇦 745 138 7ms 9 May 2024 826th primo-ppcg 🇹🇭 745 144 419ms 4 Apr 2022 826th Lydxn 🇨🇦 745 144 426ms 5 Apr 2022 826th rotary-o 🇯🇵 745 144 432ms 5 May 2023 826th Jacob385 745 144 505ms 28 Oct 2025 830th madex 🇩🇪 744 96 2,423ms 27 days ago 831st RYNO8 742 119 11ms 18 Feb 2022 831st eshilo-draper 742 119 11ms 10 Oct 2022 831st georgehulme 742 119 11ms 12 Oct 2022 831st Omega65536 🇩🇪 742 119 11ms 24 Nov 2022 831st Ripick 742 119 11ms 2 Feb 2023 831st Ythaenagor 742 119 11ms 5 Aug 2024 831st PyryL 🇫🇮 742 119 11ms 20 Aug 2024 831st JunkIce 742 119 10ms 25 Nov 2024 831st Stockoh 🇫🇷 742 119 11ms 13 Feb 2025 831st Alban-Boissard 742 119 11ms 14 Jun 2025 841st weliveinhell 🇭🇹 742 180 334ms 4 Oct 2023 841st emgordon154 742 180 310ms 20 Feb 2025 843rd dokutan 741 102 457ms 13 Aug 2024 843rd flekAI 741 102 484ms 5 days ago 843rd jusaka 741 102 501ms 46 hours ago 846th BambooleanLogic 🇸🇪 740 96 14ms 20 Aug 2022 846th vroup 🇩🇰 740 96 11ms 2 Oct 2022 846th Ultra814 740 96 11ms 17 Aug 2025 849th SirBogman 🇺🇸 739 59 32ms 8 Sep 2022 850th jupj 🇫🇮 739 125 2ms 31 Aug 2022 851st emgordon154 739 139 9ms 20 Feb 2025 852nd KenanSi 738 42 2ms 24 Feb 2022 852nd Natanaelel 🇸🇪 738 42 2ms 21 Jun 2022 852nd GolfingSuccess 🇬🇷 738 42 2ms 31 Dec 2022 855th billings7 🇬🇧 738 105 450ms 12 Nov 2023 855th MiffOttah 738 105 457ms 28 Nov 2024 857th JRaspass 🇬🇧 738 181 337ms 23 Sep 2022 858th fkantelberg 736 120 11ms 18 Jul 2023 858th Bmrl7 736 120 10ms 29 Feb 2024 858th elgan65536 🇺🇸 736 120 18ms 1 Apr 2024 858th robin-scragg 736 120 14ms 25 Jul 2025 858th zgialor-lab 736 120 10ms 7 days ago 863rd retrohun 736 151 86ms 30 Dec 2022 863rd annaproxy 736 151 93ms 5 Jan 2023 865th SirBogman 🇺🇸 736 320 14ms 21 May 2022 866th Waffle3z 735 74 36ms 12 Jan 2022 866th olleicua 🇺🇸 735 74 37ms 16 Feb 2024 866th emgordon154 735 74 36ms 25 Jun 2024 869th yzhs 🇩🇪 735 153 146ms 25 Jun 2023 870th KatieLG 🇬🇧 734 103 449ms 27 Oct 2024 871st Yewzir 🇧🇪 734 137 35ms 28 Nov 2023 872nd flekAI 734 182 293ms 5 days ago 873rd bac0id 733 126 1ms 3 Jul 2024 874th dokutan 732 97 10ms 5 Jun 2025 874th iczelia 🇩🇪 732 97 11ms 26 Sep 2025 874th johnkiernander 732 97 11ms 14 Dec 2025 877th ericlangedijk 🇸🇮 731 106 469ms 19 Mar 2022 878th jared-hughes 731 152 439ms 24 Jun 2022 878th Betuaredead 731 152 436ms 7 Jan 2023 880th Natanaelel 🇸🇪 730 121 11ms 12 Jan 2022 First Prev 801–880 of 1,720 Next Last