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 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 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 158th sean-niemann 🇺🇸 901 90 64ms 14 May 2025 158th Steffan153 🇫🇮 901 90 66ms 19 days ago 163rd Shanethegamer 🇺🇸 901 93 6ms 13 Nov 2023 163rd DialFrost 🇸🇬 901 93 6ms 28 Jul 2024 163rd sean-niemann 🇺🇸 901 93 5ms 19 Apr 2025 166th btnlq 901 98 9ms 10 Jan 2022 166th primo-ppcg 🇹🇭 901 98 11ms 13 Jan 2022 166th m-tkach 🇺🇦 901 98 17ms 18 Jul 2023 166th sean-niemann 🇺🇸 901 98 17ms 28 Jan 2025 170th canissimia 🇦🇶 900 74 31ms 13 Jul 2022 171st DialFrost 🇸🇬 900 119 370ms 24 Sep 2025 171st Yewzir 🇧🇪 900 119 582ms 24 Sep 2025 171st namelessiw 900 119 399ms 7 Oct 2025 174th jared-hughes 899 79 10ms 12 Jan 2022 174th ZakkkkAttackkkk 🇵🇭 899 79 10ms 9 Jun 2022 174th ovs-code 🇩🇪 899 79 10ms 29 Sep 2023 174th uttumuttu 🇫🇮 899 79 10ms 21 Dec 2023 174th neel11235813 899 79 9ms 25 Mar 2024 174th levinwinter 899 79 9ms 21 Oct 2025 174th JOrE20 899 79 8ms 14 days ago 181st JayXon 🇺🇸 899 82 122ms 4 hours ago 182nd Steffan153 🇫🇮 899 85 474ms 80 mins ago 183rd JayXon 🇺🇸 899 102 407ms 23 Jul 2025 183rd edsrzf 🇳🇿 899 102 418ms 12 Sep 2025 185th xnor-gate 899 125 143ms 11 Jan 2022 186th JayXon 🇺🇸 899 148 288ms 11 Nov 2023 187th JayXon 🇺🇸 897 98 2ms 19 Feb 2024 187th sean-niemann 🇺🇸 897 98 2ms 19 Nov 2025 187th Steffan153 🇫🇮 897 98 2ms 19 days ago 190th ovs-code 🇩🇪 894 85 82ms 27 May 2024 190th DialFrost 🇸🇬 894 85 79ms 22 Jun 2024 190th Steffan153 🇫🇮 894 85 80ms 15 Aug 2024 190th sean-niemann 🇺🇸 894 85 82ms 6 Jul 2025 194th nwellnhof 🇩🇪 893 149 287ms 23 Jun 2023 195th AlephSquirrel 892 99 10ms 21 Jul 2023 195th Seek64 🇩🇪 892 99 10ms 24 Sep 2024 195th kg583 🇺🇸 892 99 9ms 30 Nov 2025 195th jared-hughes 892 99 10ms 30 Nov 2025 199th JayXon 🇺🇸 892 126 122ms 22 Jun 2024 200th canissimia 🇦🇶 891 61 39ms 18 Jul 2022 201st edsrzf 🇳🇿 890 67 834ms 17 days ago 201st Steffan153 🇫🇮 890 67 758ms 17 days ago 201st sean-niemann 🇺🇸 890 67 865ms 15 days ago 204th Steffan153 🇫🇮 890 87 459ms 21 Aug 2024 205th GrayJoKing 🇦🇺 889 92 69ms 21 Jun 2024 205th JayXon 🇺🇸 889 92 75ms 4 hours ago 207th JayXon 🇺🇸 889 117 101ms 21 May 2023 208th janbehrens 🇩🇪 888 80 10ms 24 Nov 2022 208th DayDun 🇸🇪 888 80 10ms 22 Jan 2023 208th tayloia 🇬🇧 888 80 10ms 16 May 2023 208th voytxt 🇨🇿 888 80 9ms 4 Feb 2024 208th Salutations45 888 80 9ms 27 Nov 2024 208th emgordon154 888 80 10ms 16 Feb 2025 208th Lv0Sys 🇵🇱 888 80 10ms 5 days ago 215th GrayJoKing 🇦🇺 888 83 131ms 6 Aug 2024 216th edsrzf 🇳🇿 888 119 8ms 2 Mar 2025 216th kg583 🇺🇸 888 119 8ms 22 days ago 218th KasperKivimaeki 🇫🇮 888 124 439ms 30 Jul 2025 219th clockworknazo 887 85 4ms 25 Mar 2023 219th edsrzf 🇳🇿 887 85 4ms 18 Nov 2025 221st lifthrasiir 🇰🇷 886 35 2ms 29 Nov 2024 222nd ovs-code 🇩🇪 886 66 5ms 30 Oct 2024 222nd emgordon154 886 66 5ms 6 Jun 2025 224th edsrzf 🇳🇿 886 92 5ms 24 Jul 2025 225th Lydxn 🇨🇦 885 86 108ms 26 Feb 2023 226th ScottHamper 885 121 484ms 30 Nov 2025 227th JayXon 🇺🇸 884 109 474ms 24 Jul 2024 228th hallvabo 🇳🇴 883 100 10ms 11 Jan 2022 228th xsot 🇸🇬 883 100 10ms 21 Jul 2023 228th inventshah 883 100 10ms 3 Aug 2023 228th StefanHabel 🇨🇦 883 100 10ms 5 Sep 2023 228th neel11235813 883 100 10ms 9 Nov 2023 228th MeWhenI 🇻🇦 883 100 10ms 7 Dec 2023 228th lynn 883 100 9ms 21 Jun 2024 228th duckyluuk 🇳🇱 883 100 10ms 21 Jun 2024 228th DialFrost 🇸🇬 883 100 10ms 28 Jun 2024 228th Mukundan314 883 100 10ms 30 Apr 2025 228th ryyyn 🇺🇸 883 100 10ms 28 Oct 2025 228th CaedenHarper 🇨🇦 883 100 10ms 30 Nov 2025 240th sisyphus-ppcg 🇦🇺 883 104 8ms 19 Jul 2022 First Prev 161–240 of 1,611 Next Last