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 81st GrayJoKing 🇦🇺 932 48 140ms 4 Dec 2022 81st Steffan153 🇫🇮 932 48 143ms 4 Dec 2022 81st SirFireball3521 932 48 134ms 10 Feb 2023 81st edsrzf 🇳🇿 932 48 129ms 16 Jan 2026 85th Steffan153 🇫🇮 932 81 471ms 9 days ago 85th JayXon 🇺🇸 932 81 550ms 4 days ago 87th namelessiw 932 83 512ms 1 Aug 2025 88th nwellnhof 🇩🇪 925 120 55ms 23 Jun 2023 88th JayXon 🇺🇸 925 120 60ms 8 days ago 90th JayXon 🇺🇸 924 94 2ms 21 May 2023 90th edsrzf 🇳🇿 924 94 2ms 24 Nov 2025 92nd KasperKivimaeki 🇫🇮 924 100 1ms 19 Jul 2024 93rd rucin93 🇵🇱 923 116 389ms 24 Sep 2025 93rd sean-niemann 🇺🇸 923 116 472ms 24 Sep 2025 93rd JayXon 🇺🇸 923 116 485ms 25 Sep 2025 93rd nwellnhof 🇩🇪 923 116 456ms 25 Sep 2025 93rd MeWhenI 🇻🇦 923 116 466ms 7 Nov 2025 93rd Steffan153 🇫🇮 923 116 364ms 11 Feb 2026 99th NewDefectus 🇮🇱 922 77 10ms 11 Jan 2022 99th dmrichwa 🇺🇸 922 77 10ms 27 Oct 2022 99th stefangabos 🇷🇴 922 77 11ms 19 May 2023 99th sebipopa 🇷🇴 922 77 11ms 22 May 2023 99th Shanethegamer 🇺🇸 922 77 12ms 4 Jul 2023 99th coreynash 922 77 11ms 19 Oct 2023 105th GrayJoKing 🇦🇺 922 109 38ms 28 Jun 2024 106th GrayJoKing 🇦🇺 921 82 445ms 21 Jun 2024 106th pardouin 🇫🇷 921 82 571ms 9 days ago 108th Yax42 🇫🇷 921 84 537ms 31 Jan 2025 109th JayXon 🇺🇸 920 64 1,255ms 22 Jun 2024 110th bizy-coder 920 96 10ms 3 days ago 111th Steffan153 🇫🇮 918 64 816ms 9 days ago 112th edsrzf 🇳🇿 917 111 6ms 27 Nov 2025 113th o0lit3 🇺🇸 915 51 4ms 11 Jan 2022 114th Steffan153 🇫🇮 915 63 5ms 9 days ago 115th stefangimmillaro 915 117 363ms 6 Oct 2025 116th Lydxn 🇨🇦 914 95 2ms 26 Feb 2023 116th Steffan153 🇫🇮 914 95 2ms 9 Apr 2023 116th GrayJoKing 🇦🇺 914 95 2ms 18 Jul 2024 116th FlyingPenguin223 914 95 2ms 27 Oct 2024 116th frosster 🇨🇦 914 95 2ms 8 Feb 2026 121st JayXon 🇺🇸 914 101 1ms 21 May 2023 121st nwellnhof 🇩🇪 914 101 1ms 23 Jun 2023 123rd SirBogman 🇺🇸 913 49 141ms 10 May 2022 123rd ovs-code 🇩🇪 913 49 135ms 10 Feb 2023 125th HPWiz 🇳🇿 913 59 40ms 28 Jun 2022 126th MeWhenI 🇻🇦 913 143 39ms 29 Apr 2025 126th stefangimmillaro 913 143 39ms 10 Jul 2025 128th ovs-code 🇩🇪 912 34 42ms 14 May 2024 129th duckyluuk 🇳🇱 911 78 10ms 4 Oct 2024 129th targrik 911 78 10ms 13 Feb 2025 129th Yax42 🇫🇷 911 78 11ms 13 Nov 2025 129th JayXon 🇺🇸 911 78 2,509ms 9 days ago 129th emgordon154 911 78 14ms 6 days ago 134th xsot 🇸🇬 911 92 7ms 22 May 2025 135th nwellnhof 🇩🇪 910 97 10ms 18 Jul 2023 135th ovs-code 🇩🇪 910 97 17ms 5 Jul 2024 135th 4atj 910 97 16ms 30 Jun 2025 138th tailorspy 910 122 64ms 11 Jul 2024 138th snyderek 🇺🇸 910 122 71ms 20 Jul 2024 138th zygoloid 910 122 65ms 7 Aug 2024 141st Bubbler-4 908 48 33ms 15 Nov 2022 141st stackofbears 908 48 32ms 27 Dec 2023 141st 2bular 908 48 33ms 6 days ago 144th Shanethegamer 🇺🇸 908 118 386ms 24 Sep 2025 145th JayXon 🇺🇸 906 84 113ms 10 days ago 145th Steffan153 🇫🇮 906 84 117ms 9 days ago 145th edsrzf 🇳🇿 906 84 120ms 9 days ago 148th JohandeRuiter 🇳🇱 906 102 1ms 7 Jul 2024 149th Shanethegamer 🇺🇸 906 124 121ms 16 Jan 2022 149th lynn 906 124 124ms 16 Jan 2022 149th Sakisan 🇧🇪 906 124 126ms 12 Oct 2022 149th HPWiz 🇳🇿 906 124 120ms 31 Jan 2023 149th ovs-code 🇩🇪 906 124 125ms 13 May 2023 149th Lydxn 🇨🇦 906 124 125ms 3 Aug 2023 149th edsrzf 🇳🇿 906 124 118ms 19 Dec 2025 149th JayXon 🇺🇸 906 124 139ms 9 days ago 157th Waffle3z 905 96 2ms 11 Jan 2022 157th NickTheEASDude 🇺🇸 905 96 2ms 9 Apr 2024 157th MeepMoop 905 96 2ms 10 Apr 2025 160th DialFrost 🇸🇬 904 57 21ms 11 Jan 2025 First Prev 81–160 of 1,609 Next Last