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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers 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 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 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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 451st quimey 824 107 7 Mar 2023 451st fourth-bit 824 107 10 Jul 2024 451st fuzzylojik-golf 🇺🇸 824 107 19 May 2025 451st Shanethegamer 🇺🇸 824 107 24 May 2025 455th Mandrzejy 🇵🇱 824 114 13 Sep 2024 456th error256 822 66 8 May 2025 457th MeWhenI 🇻🇦 822 102 26 Nov 2023 458th Frowny 821 53 11 Jan 2022 459th annaproxy 821 94 19 Mar 2022 460th jared-hughes 821 200 18 Dec 2024 461st Shanethegamer 🇺🇸 820 93 16 Jan 2024 461st Yewzir 🇧🇪 820 93 22 Jun 2024 463rd MeWhenI 🇻🇦 820 101 23 May 2023 464th Mandrzejy 🇵🇱 820 134 13 Sep 2024 465th primo-ppcg 🇹🇭 820 164 25 Jun 2022 466th btnlq 818 125 12 Jan 2022 467th prplz 🇦🇺 817 108 11 Jan 2022 467th galloj 🇨🇿 817 108 21 Sep 2022 467th TaserTheFox 🇺🇸 817 108 3 Apr 2023 467th jatloe 817 108 26 Aug 2024 471st madex 🇩🇪 817 115 10 Apr 2022 471st FragmentedCurve 817 115 22 Nov 2023 471st mathisfun271 817 115 5 Feb 2024 474th lynn 816 38 22 Jul 2022 474th MeWhenI 🇻🇦 816 38 25 Aug 2022 474th 5cw 🇺🇸 816 38 27 May 2024 477th Steffan153 🇫🇮 816 57 6 Jan 2023 477th Natanaelel 🇸🇪 816 57 13 May 2023 479th DialFrost 🇸🇬 816 118 27 Nov 2024 480th kg583 🇺🇸 816 157 13 Feb 2025 481st h3ra993huskp 🇯🇵 816 161 7 Jan 2024 482nd itsh01 815 87 13 Mar 2022 482nd AlephSquirrel 815 87 15 Feb 2023 482nd danielphilpottwork 815 87 20 Dec 2023 482nd Attero 🇸🇪 815 87 22 Dec 2023 486th sean-niemann 🇺🇸 815 163 30 Aug 2023 486th Yewzir 🇧🇪 815 163 7 Feb 2024 488th janbehrens 🇩🇪 814 103 2 Jul 2023 489th Irratix 🇳🇱 814 135 14 May 2022 490th scpchicken 🇵🇼 812 55 13 Mar 2022 491st MeWhenI 🇻🇦 810 116 5 Jul 2024 492nd janlelis 809 67 11 Jan 2022 492nd stefangimmillaro 809 67 26 Dec 2024 494th chunes3 🇺🇸 809 100 15 Sep 2023 494th Natanaelel 🇸🇪 809 100 8 Dec 2023 496th jotslo 🇬🇧 809 107 17 Jul 2022 497th ZakkkkAttackkkk 🇵🇭 809 109 23 Feb 2022 497th cefqrn 809 109 24 Dec 2022 497th AlexanderFair 809 109 11 Jul 2023 497th firegene 🇮🇪 809 109 18 Jan 2024 497th PixelSoftwareStudios 🇺🇸 809 109 6 Jul 2024 497th andrewjc2000 809 109 9 Mar 2025 503rd Shanethegamer 🇺🇸 808 136 20 Apr 2022 504th dokutan 806 130 21 Jun 2024 505th Ripick 805 121 11 Jul 2024 506th ScottHamper 804 96 26 Feb 2022 506th stefangimmillaro 804 96 5 Jan 2023 506th bojernico 804 96 6 Apr 2023 509th m-tkach 🇺🇦 803 117 11 Jan 2022 510th typeswitch-dev 🇵🇹 803 121 14 Aug 2023 511th Yewzir 🇧🇪 803 185 21 May 2024 512th scpchicken 🇵🇼 802 58 22 Feb 2023 513th mtirado1 802 108 6 May 2023 514th btjones0 802 110 25 Jan 2022 514th adamnielson42 🇺🇸 802 110 25 Apr 2023 514th sultan 802 110 24 Feb 2024 514th fgrosshans 🇫🇷 802 110 16 Jul 2024 514th cros107 802 110 9 Jan 2025 519th m-tkach 🇺🇦 802 137 15 Jan 2022 519th sean-niemann 🇺🇸 802 137 3 Feb 2024 521st MeWhenI 🇻🇦 801 137 12 Sep 2022 522nd cbrt-x 801 164 16 Jan 2022 523rd Shanethegamer 🇺🇸 801 168 28 Apr 2022 524th Shanethegamer 🇺🇸 800 159 20 Jul 2023 525th emgordon154 800 234 18 Apr 2025 Prev 451–525 of 1,412 Next