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 321st edsrzf 🇳🇿 867 103 156ms 17 Oct 2025 322nd neihousaigaai 866 82 12ms 11 Jan 2022 322nd SirFireball3521 866 82 11ms 31 Oct 2022 322nd thisishowmymindworks 🇳🇴 866 82 12ms 10 Jun 2023 325th anter69 🇭🇺 866 102 11ms 13 Jan 2022 325th Irratix 🇳🇱 866 102 13ms 5 Jul 2022 325th b10011 🇫🇮 866 102 10ms 14 Jan 2023 325th CornerMercury 🇬🇧 866 102 12ms 13 Sep 2023 325th ndren 866 102 10ms 4 Oct 2023 325th Just4FunCoder 866 102 11ms 17 Feb 2024 325th Yewzir 🇧🇪 866 102 11ms 22 Jun 2024 325th bzijlema 🇳🇱 866 102 10ms 15 Oct 2024 325th moustave 866 102 11ms 25 Jun 2025 325th Babafaba 866 102 12ms 28 Nov 2025 325th Flekay 🇩🇪 866 102 11ms 19 Feb 2026 325th FoxInTheClouds 866 102 11ms 20 Feb 2026 325th snoozingnewt 🇨🇦 866 102 10ms 20 Feb 2026 325th edsrzf 🇳🇿 866 102 10ms 4 Mar 2026 325th madex 🇩🇪 866 102 10ms 15 Mar 2026 325th firegene 🇮🇪 866 102 10ms 26 days ago 325th Emutis 🇱🇹 866 102 11ms 17 days ago 325th jusaka 866 102 10ms 16 days ago 325th flekAI 866 102 10ms 6 days ago 325th scpchicken 🇵🇼 866 102 10ms 5 days ago 325th BrunoVisnadi 🇧🇷 866 102 10ms 4 days ago 346th arjanadriaanse 🇳🇱 866 130 141ms 8 Feb 2022 346th annaproxy 866 130 144ms 8 Feb 2022 348th nwellnhof 🇩🇪 865 54 5ms 22 May 2022 349th edsrzf 🇳🇿 865 124 460ms 24 Sep 2025 349th dokutan 865 124 491ms 24 Sep 2025 351st primo-ppcg 🇹🇭 865 151 42ms 26 Apr 2025 352nd kg583 🇺🇸 864 119 8ms 10 Feb 2026 353rd ovs-code 🇩🇪 863 63 40ms 9 May 2023 353rd nwellnhof 🇩🇪 863 63 36ms 18 Jul 2023 355th rucin93 🇵🇱 863 102 2ms 10 Jul 2025 356th ovs-code 🇩🇪 863 119 14ms 4 Jul 2024 356th GrayJoKing 🇦🇺 863 119 15ms 5 Jul 2024 358th Shanethegamer 🇺🇸 863 122 1,472ms 21 Apr 2022 359th Shanethegamer 🇺🇸 863 144 29ms 10 Feb 2026 360th ovs-code 🇩🇪 862 129 87ms 10 Feb 2023 361st Shanethegamer 🇺🇸 861 36 2ms 16 Jan 2022 361st AlephSquirrel 861 36 45ms 29 Dec 2022 361st bstrat 861 36 2ms 1 Jul 2024 364th primo-ppcg 🇹🇭 861 95 4ms 21 Aug 2023 364th Shanethegamer 🇺🇸 861 95 4ms 25 Mar 2024 364th kg583 🇺🇸 861 95 4ms 10 Feb 2026 367th MeWhenI 🇻🇦 860 90 506ms 9 Aug 2023 368th primo-ppcg 🇹🇭 860 117 36ms 20 Jun 2022 369th targrik 859 98 6ms 30 Jan 2025 370th GrayJoKing 🇦🇺 859 118 8ms 25 Feb 2026 370th edsrzf 🇳🇿 859 118 8ms 5 Mar 2026 372nd Natanaelel 🇸🇪 859 131 148ms 18 May 2025 373rd SirBogman 🇺🇸 858 103 11ms 10 May 2022 373rd janbehrens 🇩🇪 858 103 11ms 23 Jun 2023 373rd FlorianCassayre 🇫🇷 858 103 10ms 9 Sep 2023 373rd orthoplex 🇨🇽 858 103 10ms 25 Nov 2023 373rd abc7-12 858 103 10ms 26 Jun 2024 373rd KatieLG 🇬🇧 858 103 11ms 8 Jul 2024 373rd Lv0Sys 🇵🇱 858 103 10ms 6 Dec 2025 373rd FortuiteMan 🇫🇷 858 103 14ms 18 Dec 2025 381st Shanethegamer 🇺🇸 858 113 437ms 21 Apr 2022 381st Steffan153 🇫🇮 858 113 456ms 23 Jul 2024 381st sean-niemann 🇺🇸 858 113 469ms 23 Mar 2025 384th CaedenHarper 🇨🇦 858 125 508ms 3 Oct 2025 385th primo-ppcg 🇹🇭 857 61 2ms 19 Nov 2022 386th snoozingnewt 🇨🇦 857 89 80ms 22 Nov 2025 387th Shanethegamer 🇺🇸 857 126 2ms 10 Sep 2022 387th inventshah 857 126 2ms 18 Sep 2022 389th m-tkach 🇺🇦 856 83 12ms 10 Jan 2022 389th trinityy-7 856 83 14ms 13 Mar 2024 389th penbuvt 856 83 11ms 7 Nov 2024 389th solisolu 856 83 11ms 10 days ago 393rd Alex-x90 🇺🇸 856 108 2ms 8 Aug 2023 394th Shanethegamer 🇺🇸 856 120 15ms 14 Dec 2023 394th error256 856 120 7ms 10 Feb 2026 396th stefangimmillaro 856 156 316ms 20 Oct 2023 397th edsrzf 🇳🇿 855 69 739ms 17 days ago 398th GrayJoKing 🇦🇺 855 95 69ms 18 Sep 2023 399th MeWhenI 🇻🇦 855 103 2ms 13 Oct 2023 400th edsrzf 🇳🇿 855 130 39ms 4 days ago First Prev 321–400 of 1,720 Next Last