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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers 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 481st quimey 825 107 10ms 7 Mar 2023 481st fourth-bit 825 107 10ms 10 Jul 2024 481st fuzzylojik-golf 🇺🇸 825 107 10ms 19 May 2025 481st solisolu 825 107 10ms 25 Nov 2025 485th Shanethegamer 🇺🇸 825 112 2ms 20 Apr 2022 486th GrayJoKing 🇦🇺 824 99 4ms 20 Sep 2023 487th m-tkach 🇺🇦 824 130 544ms 25 Sep 2025 488th error256 823 66 34ms 8 May 2025 489th annaproxy 823 94 428ms 19 Mar 2022 490th primo-ppcg 🇹🇭 823 164 25ms 25 Jun 2022 491st Frowny 822 53 32ms 11 Jan 2022 492nd MeWhenI 🇻🇦 822 102 6ms 26 Nov 2023 493rd Irratix 🇳🇱 822 135 426ms 14 May 2022 494th DialFrost 🇸🇬 822 286 140ms 22 Apr 2025 494th frankgraziano 822 286 651ms 31 Jan 2026 496th inventshah 821 92 478ms 21 Jan 2024 496th GolfingSuccess 🇬🇷 821 92 402ms 2 Mar 2024 498th Shanethegamer 🇺🇸 821 124 6ms 27 Aug 2024 499th jared-hughes 821 200 8ms 18 Dec 2024 500th Steffan153 🇫🇮 818 57 3ms 6 Jan 2023 500th Natanaelel 🇸🇪 818 57 3ms 13 May 2023 502nd prplz 🇦🇺 818 108 10ms 11 Jan 2022 502nd galloj 🇨🇿 818 108 10ms 21 Sep 2022 502nd TaserTheFox 🇺🇸 818 108 9ms 3 Apr 2023 502nd jatloe 818 108 10ms 26 Aug 2024 502nd cros107 🇦🇺 818 108 10ms 10 Aug 2025 507th btnlq 818 125 14ms 12 Jan 2022 508th Yewzir 🇧🇪 817 113 2ms 29 Nov 2023 508th drabart 🇵🇱 817 113 2ms 18 Dec 2023 510th emgordon154 817 181 1,625ms 22 Dec 2025 511th lynn 816 38 38ms 22 Jul 2022 511th MeWhenI 🇻🇦 816 38 41ms 25 Aug 2022 511th 5cw 🇺🇸 816 38 2ms 27 May 2024 514th DialFrost 🇸🇬 816 72 755ms 4 Sep 2025 515th itsh01 816 87 9ms 13 Mar 2022 515th AlephSquirrel 816 87 10ms 15 Feb 2023 515th danielphilpottwork 816 87 11ms 20 Dec 2023 515th stefangimmillaro 816 87 2,291ms 24 Nov 2024 515th emgordon154 816 87 2,364ms 6 Mar 2025 520th DialFrost 🇸🇬 816 118 461ms 27 Nov 2024 521st Shanethegamer 🇺🇸 816 136 56ms 20 Apr 2022 522nd kg583 🇺🇸 816 154 38ms 17 Nov 2025 523rd sean-niemann 🇺🇸 816 163 311ms 30 Aug 2023 523rd Yewzir 🇧🇪 816 163 288ms 7 Feb 2024 523rd CaedenHarper 🇨🇦 816 163 288ms 2 Nov 2025 526th janbehrens 🇩🇪 814 103 4ms 2 Jul 2023 527th plcc0 814 125 6ms 23 Mar 2025 528th scpchicken 🇵🇼 813 55 135ms 13 Mar 2022 529th Shanethegamer 🇺🇸 812 93 458ms 16 Jan 2024 529th Yewzir 🇧🇪 812 93 524ms 22 Jun 2024 531st jotslo 🇬🇧 812 107 2ms 17 Jul 2022 532nd janlelis 811 67 38ms 11 Jan 2022 532nd stefangimmillaro 811 67 36ms 26 Dec 2024 534th chunes3 🇺🇸 811 100 71ms 15 Sep 2023 534th Natanaelel 🇸🇪 811 100 70ms 8 Dec 2023 536th GrayJoKing 🇦🇺 811 113 430ms 24 Jul 2025 537th error256 811 132 385ms 21 Nov 2025 538th ZakkkkAttackkkk 🇵🇭 810 109 11ms 23 Feb 2022 538th cefqrn 810 109 10ms 24 Dec 2022 538th AlexanderFair 810 109 10ms 11 Jul 2023 538th PixelSoftwareStudios 🇺🇸 810 109 11ms 6 Jul 2024 538th andrewjc2000 810 109 9ms 9 Mar 2025 538th tomh1012 810 109 10ms 2 days ago 544th Mandrzejy 🇵🇱 810 114 1ms 13 Sep 2024 544th AZTECCO 810 114 2ms 16 Sep 2025 546th m-tkach 🇺🇦 810 137 59ms 15 Jan 2022 546th sean-niemann 🇺🇸 810 137 56ms 3 Feb 2024 548th GrayJoKing 🇦🇺 810 152 29ms 18 Jul 2023 548th m-tkach 🇺🇦 810 152 29ms 25 days ago 550th albanian-laundromat 809 133 3ms 22 Sep 2025 551st MeWhenI 🇻🇦 807 101 4ms 23 May 2023 552nd ScottHamper 806 96 449ms 26 Feb 2022 552nd stefangimmillaro 806 96 438ms 5 Jan 2023 552nd bojernico 806 96 444ms 6 Apr 2023 555th edsrzf 🇳🇿 806 114 7ms 22 Aug 2025 556th emgordon154 806 234 1,472ms 18 Apr 2025 556th error256 806 234 1,482ms 26 days ago 558th emgordon154 805 125 7ms 18 hours ago 559th h3ra993huskp 🇯🇵 805 133 496ms 30 Nov 2025 560th scpchicken 🇵🇼 804 58 3ms 22 Feb 2023 First Prev 481–560 of 1,601 Next Last