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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 ><> 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 ALGOL 68 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 ><> 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 ALGOL 68 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 81st namelessiw 932 83 484ms 1 Aug 2025 82nd JayXon 🇺🇸 925 119 58ms 3 Aug 2023 83rd JayXon 🇺🇸 924 94 2ms 21 May 2023 83rd edsrzf 🇳🇿 924 94 2ms 24 Nov 2025 85th KasperKivimaeki 🇫🇮 924 100 1ms 19 Jul 2024 86th rucin93 🇵🇱 923 116 389ms 24 Sep 2025 86th sean-niemann 🇺🇸 923 116 472ms 24 Sep 2025 86th JayXon 🇺🇸 923 116 485ms 25 Sep 2025 86th nwellnhof 🇩🇪 923 116 484ms 25 Sep 2025 86th MeWhenI 🇻🇦 923 116 466ms 7 Nov 2025 86th Steffan153 🇫🇮 923 116 364ms 13 hours ago 92nd NewDefectus 🇮🇱 922 77 10ms 11 Jan 2022 92nd dmrichwa 🇺🇸 922 77 14ms 27 Oct 2022 92nd stefangabos 🇷🇴 922 77 10ms 19 May 2023 92nd sebipopa 🇷🇴 922 77 10ms 22 May 2023 92nd Shanethegamer 🇺🇸 922 77 10ms 4 Jul 2023 92nd coreynash 922 77 10ms 19 Oct 2023 98th GrayJoKing 🇦🇺 922 109 38ms 28 Jun 2024 99th Yax42 🇫🇷 921 84 517ms 31 Jan 2025 100th JayXon 🇺🇸 920 64 1,255ms 22 Jun 2024 101st JayXon 🇺🇸 920 96 27ms 21 Jun 2024 102nd edsrzf 🇳🇿 917 111 6ms 27 Nov 2025 103rd nwellnhof 🇩🇪 917 120 57ms 23 Jun 2023 104th stefangimmillaro 915 117 363ms 6 Oct 2025 105th o0lit3 🇺🇸 914 51 3ms 11 Jan 2022 106th GrayJoKing 🇦🇺 914 64 5ms 17 Aug 2024 107th Lydxn 🇨🇦 914 95 2ms 26 Feb 2023 107th Steffan153 🇫🇮 914 95 2ms 9 Apr 2023 107th GrayJoKing 🇦🇺 914 95 2ms 18 Jul 2024 107th FlyingPenguin223 914 95 2ms 27 Oct 2024 107th frosster 914 95 2ms 3 days ago 112th JayXon 🇺🇸 914 101 2ms 21 May 2023 112th nwellnhof 🇩🇪 914 101 1ms 23 Jun 2023 114th SirBogman 🇺🇸 913 49 120ms 10 May 2022 114th ovs-code 🇩🇪 913 49 130ms 10 Feb 2023 116th HPWiz 🇳🇿 913 59 38ms 28 Jun 2022 117th ovs-code 🇩🇪 912 34 49ms 14 May 2024 118th edsrzf 🇳🇿 912 68 913ms 19 Nov 2025 119th MeWhenI 🇻🇦 912 143 39ms 29 Apr 2025 119th stefangimmillaro 912 143 39ms 10 Jul 2025 121st duckyluuk 🇳🇱 911 78 10ms 4 Oct 2024 121st targrik 911 78 10ms 13 Feb 2025 121st Yax42 🇫🇷 911 78 11ms 13 Nov 2025 124th xsot 🇸🇬 911 92 5ms 22 May 2025 125th nwellnhof 🇩🇪 910 97 11ms 18 Jul 2023 125th Steffan153 🇫🇮 910 97 16ms 21 Jun 2024 125th ovs-code 🇩🇪 910 97 17ms 5 Jul 2024 125th 4atj 910 97 16ms 30 Jun 2025 129th Lydxn 🇨🇦 909 84 462ms 16 Jan 2024 130th Shanethegamer 🇺🇸 908 118 386ms 24 Sep 2025 131st Bubbler-4 906 48 34ms 15 Nov 2022 131st stackofbears 906 48 32ms 27 Dec 2023 133rd JayXon 🇺🇸 906 84 2,274ms 8 Nov 2024 133rd pardouin 🇫🇷 906 84 2,245ms 8 Nov 2024 135th JohandeRuiter 🇳🇱 906 102 1ms 7 Jul 2024 136th Shanethegamer 🇺🇸 906 124 121ms 16 Jan 2022 136th lynn 906 124 124ms 16 Jan 2022 136th Sakisan 🇧🇪 906 124 126ms 12 Oct 2022 136th HPWiz 🇳🇿 906 124 137ms 31 Jan 2023 136th ovs-code 🇩🇪 906 124 125ms 13 May 2023 136th Lydxn 🇨🇦 906 124 125ms 3 Aug 2023 136th edsrzf 🇳🇿 906 124 118ms 19 Dec 2025 143rd Lydxn 🇨🇦 905 86 137ms 26 Feb 2023 144th Waffle3z 905 96 2ms 11 Jan 2022 144th NickTheEASDude 🇺🇸 905 96 2ms 9 Apr 2024 144th MeepMoop 905 96 2ms 10 Apr 2025 147th DialFrost 🇸🇬 904 57 22ms 11 Jan 2025 147th frankgraziano 904 57 22ms 4 Feb 2025 149th JayXon 🇺🇸 903 134 154ms 1 Nov 2025 149th kumavale 903 134 150ms 1 Nov 2025 151st tailorspy 902 122 59ms 11 Jul 2024 151st snyderek 🇺🇸 902 122 60ms 20 Jul 2024 151st zygoloid 902 122 58ms 7 Aug 2024 154th GrayJoKing 🇦🇺 901 83 141ms 6 Aug 2024 155th ovs-code 🇩🇪 901 90 65ms 12 Sep 2024 155th error256 901 90 68ms 14 Feb 2025 155th primo-ppcg 🇹🇭 901 90 62ms 5 Apr 2025 155th sean-niemann 🇺🇸 901 90 64ms 14 May 2025 159th Shanethegamer 🇺🇸 901 93 5ms 13 Nov 2023 159th DialFrost 🇸🇬 901 93 5ms 28 Jul 2024 First Prev 81–160 of 1,597 Next Last