ISBN in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 522nd cros107 802 110 9 Jan 2025 527th m-tkach 🇺🇦 802 137 15 Jan 2022 527th sean-niemann 🇺🇸 802 137 3 Feb 2024 529th cbrt-x 801 164 16 Jan 2022 530th Shanethegamer 🇺🇸 801 168 28 Apr 2022 531st Shanethegamer 🇺🇸 800 159 20 Jul 2023 532nd emgordon154 800 234 18 Apr 2025 533rd akshatj27 🇦🇶 798 68 10 Jan 2022 533rd SirBogman 🇺🇸 798 68 19 May 2022 533rd Shanethegamer 🇺🇸 798 68 27 May 2022 533rd Haksell 🇦🇶 798 68 23 Feb 2023 533rd anter69 🇭🇺 798 68 20 Nov 2023 538th stefangimmillaro 798 152 28 Oct 2023 539th lifthrasiir 🇰🇷 798 206 18 Dec 2024 540th igmcdowell 797 89 24 Feb 2022 540th inventshah 797 89 21 Jun 2022 540th olleicua 🇺🇸 797 89 3 Feb 2024 540th kpal81xd 797 89 15 Sep 2024 544th sean-niemann 🇺🇸 797 118 3 Feb 2024 545th Shanethegamer 🇺🇸 796 161 13 Feb 2025 546th SirBogman 🇺🇸 795 39 4 Oct 2022 547th prplz 🇦🇺 795 70 19 Jan 2022 547th SirBogman 🇺🇸 795 70 19 May 2022 549th SirBogman 🇺🇸 795 96 16 Jan 2024 550th neihousaigaai 795 111 11 Jan 2022 550th knutae 🇳🇴 795 111 18 Jan 2022 550th rschwa6308 🇺🇸 795 111 22 Mar 2023 550th zbreit 🇺🇸 795 111 22 Mar 2023 550th InigoK 🇺🇸 795 111 14 Jun 2023 550th plcc0 795 111 3 Mar 2025 550th emgordon154 795 111 25 Mar 2025 550th BREMAUCY 🇫🇷 795 111 15 Apr 2025 558th edsrzf 🇳🇿 795 160 5 May 2025 558th m-tkach 🇺🇦 795 160 5 May 2025 560th ovs-code 🇩🇪 793 153 21 Jun 2023 561st MeWhenI 🇻🇦 792 123 30 Jan 2023 562nd Salutations45 791 66 2 Jan 2025 563rd KrausRaus 🇺🇸 791 106 11 Nov 2023 563rd edsrzf 🇳🇿 791 106 6 Oct 2024 565th LHLaurini 🇧🇷 790 119 17 Jul 2024 566th GrayJoKing 🇦🇺 789 59 14 Jan 2022 566th Shanethegamer 🇺🇸 789 59 20 Jun 2022 568th weliveinhell 🇭🇹 788 90 11 Jan 2024 569th tomh1012 788 98 31 Jan 2022 569th pkim 788 98 6 Apr 2023 569th danielxbauer 788 98 6 Apr 2023 569th meinsiedler 788 98 6 Apr 2023 569th postie77 788 98 8 May 2023 574th guilhem-roy 🇫🇷 788 112 5 Jun 2022 574th ahmetdemirag 🇨🇾 788 112 30 Jun 2024 576th lynn 788 154 11 Mar 2022 576th The3gs 788 154 18 Aug 2023 578th emgordon154 787 95 15 Nov 2024 579th MeWhenI 🇻🇦 787 112 4 Aug 2023 580th edsrzf 🇳🇿 787 133 26 Apr 2025 581st 4hg 🇺🇸 786 69 30 Nov 2022 581st Andriamanitra 🇫🇮 786 69 17 Apr 2023 583rd lifthrasiir 🇰🇷 786 97 2 Dec 2024 583rd CaedenHarper 🇨🇦 786 97 6 days ago 585th bwat2 786 167 13 Jan 2022 585th rifatx 786 167 23 Jul 2024 587th error256 786 238 18 Apr 2025 588th sean-niemann 🇺🇸 785 127 1 Dec 2023 589th adyache 🇺🇸 783 92 2 Aug 2023 590th commandblockguy 🇺🇸 781 113 3 Nov 2022 590th jakobkordez 🇸🇮 781 113 13 Nov 2022 590th mossprescott 781 113 16 Jan 2023 590th SB-945 781 113 19 Aug 2023 590th davitf 781 113 30 Apr 2024 590th albanian-laundromat 781 113 28 Apr 2025 590th kbeat 🇰🇿 781 113 18 May 2025 597th Skleni 780 99 6 Apr 2023 598th msbranicky 780 112 10 Oct 2023 599th DialFrost 🇸🇬 780 113 24 May 2025 600th MeWhenI 🇻🇦 779 43 1 Mar 2025 Prev 526–600 of 1,434 Next