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 ><> 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 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 641st msbranicky 784 112 2ms 10 Oct 2023 642nd DialFrost 🇸🇬 784 113 115ms 24 May 2025 643rd MichalMarsalek 🇨🇿 784 117 360ms 21 Apr 2022 644th sean-niemann 🇺🇸 783 118 1ms 3 Feb 2024 645th AlephSquirrel 783 130 6ms 21 Oct 2024 646th Yewzir 🇧🇪 783 135 7ms 16 Dec 2023 646th Maximizer02 783 135 7ms 24 Sep 2024 648th DialFrost 🇸🇬 783 241 1,410ms 18 Apr 2025 649th Skleni 782 99 439ms 6 Apr 2023 650th adamnielson42 🇺🇸 781 91 10ms 26 Apr 2023 650th luuumine 🇫🇷 781 91 11ms 12 Nov 2025 652nd MeWhenI 🇻🇦 781 96 141ms 25 Oct 2024 653rd commandz0 🇺🇸 781 113 10ms 3 Nov 2022 653rd jakobkordez 🇸🇮 781 113 10ms 13 Nov 2022 653rd mossprescott 781 113 10ms 16 Jan 2023 653rd SB-945 781 113 10ms 19 Aug 2023 653rd davitf 781 113 11ms 30 Apr 2024 653rd kbeat 🇰🇿 781 113 10ms 18 May 2025 659th LHLaurini 🇧🇷 781 141 54ms 17 Jul 2024 660th Shanethegamer 🇺🇸 780 104 69ms 4 Dec 2024 661st Shanethegamer 🇺🇸 780 161 41ms 13 Feb 2025 662nd MeWhenI 🇻🇦 779 43 4ms 1 Mar 2025 663rd fuzzylojik-golf 🇺🇸 779 98 453ms 6 Jul 2025 664th frankgraziano 778 130 7ms 45 hours ago 665th JRaspass 🇬🇧 777 60 3ms 18 Jan 2023 666th primo-ppcg 🇹🇭 777 118 337ms 9 Apr 2022 667th primo-ppcg 🇹🇭 777 131 6ms 20 Jan 2023 668th denkyuu1 776 70 37ms 5 days ago 669th Shanethegamer 🇺🇸 776 76 402ms 12 Oct 2022 670th call23re 776 112 2ms 12 Jan 2022 671st LHLaurini 🇧🇷 776 119 1ms 17 Jul 2024 671st solisolu 776 119 1ms 25 Nov 2025 673rd kmathis22 776 138 504ms 30 Oct 2025 674th rak1507 🇬🇧 775 40 2ms 10 Jan 2022 674th Frowny 775 40 2ms 13 Jan 2022 674th jared-hughes 775 40 38ms 29 Jul 2022 674th razetime 775 40 2ms 22 Aug 2022 678th stefangimmillaro 775 76 1,333ms 8 Jan 2023 678th MeWhenI 🇻🇦 775 76 1,213ms 10 May 2023 678th error256 775 76 1,384ms 14 Feb 2025 681st aonkeeper4 775 114 9ms 5 Jul 2022 681st frankgraziano 775 114 12ms 8 Jan 2023 681st m42km 775 114 10ms 22 Nov 2023 681st thienudomsrirungruang 775 114 17ms 14 May 2024 681st jtaxen 775 114 10ms 8 Jun 2024 681st CutSandstone 775 114 10ms 8 Jul 2024 687th Steffan153 🇫🇮 775 132 14ms 5 Jul 2024 688th DialFrost 🇸🇬 775 142 2ms 14 Sep 2024 689th strout 775 145 148ms 15 Aug 2022 690th andersk 🇺🇸 775 156 216ms 30 Oct 2022 690th emgordon154 775 156 220ms 14 Mar 2025 692nd juliansiebert 🇩🇪 774 72 284ms 24 Jul 2022 693rd MeWhenI 🇻🇦 773 130 41ms 30 Dec 2025 694th maxpelic 🇺🇸 772 92 12ms 5 Jul 2022 694th astdefu 772 92 9ms 10 Dec 2022 694th two-bad 🇬🇧 772 92 11ms 25 Feb 2024 694th KatieLG 🇬🇧 772 92 10ms 8 Jul 2024 698th Steffan153 🇫🇮 772 106 88ms 21 Jun 2024 699th emplv 🇱🇻 771 101 120ms 6 Dec 2022 700th Yewzir 🇧🇪 770 115 145ms 26 Dec 2023 701st Shanethegamer 🇺🇸 770 157 143ms 8 Oct 2022 702nd primo-ppcg 🇹🇭 769 67 15ms 24 Jan 2022 703rd Shanethegamer 🇺🇸 768 99 85ms 12 Dec 2022 704th jmerle 🇳🇱 768 115 10ms 22 Jan 2022 704th PiterAnnema 768 115 17ms 23 Mar 2022 704th AGoyet 768 115 10ms 29 Jun 2022 704th Eilonlif 🇮🇱 768 115 9ms 11 Sep 2022 704th IsmaelGSerrano 768 115 9ms 2 Nov 2022 704th bobbysq 768 115 11ms 22 Jan 2023 704th msbranicky 768 115 11ms 25 Jul 2023 704th ArenaGrenade 768 115 10ms 19 Feb 2024 704th NickTheEASDude 🇺🇸 768 115 11ms 15 May 2024 704th dokutan 768 115 9ms 13 Aug 2024 704th maxgodfrey2004 🇨🇦 768 115 10ms 8 Jan 2025 704th Pyroan 768 115 10ms 21 Feb 2025 704th chartung17 768 115 10ms 24 Mar 2025 717th CatsAreFluffy 766 57 47ms 9 Jan 2023 717th xsot 🇸🇬 766 57 53ms 2 Feb 2024 719th MeWhenI 🇻🇦 766 138 8ms 9 May 2024 720th DialFrost 🇸🇬 765 71 34ms 26 Dec 2024 First Prev 641–720 of 1,609 Next Last