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 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 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 Calendar 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 Multitap Input 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Calendar 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 Multitap Input 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 321st primo-ppcg 🇹🇭 864 97 5ms 4 Jul 2023 322nd prplz 🇦🇺 864 109 1ms 18 Jan 2022 322nd xsot 🇸🇬 864 109 2ms 1 Feb 2024 324th edsrzf 🇳🇿 864 124 442ms 24 Sep 2025 324th dokutan 864 124 359ms 24 Sep 2025 326th arjanadriaanse 🇳🇱 863 130 141ms 8 Feb 2022 326th annaproxy 863 130 144ms 8 Feb 2022 328th nwellnhof 🇩🇪 862 54 4ms 22 May 2022 329th ovs-code 🇩🇪 862 63 36ms 9 May 2023 329th nwellnhof 🇩🇪 862 63 37ms 18 Jul 2023 331st primo-ppcg 🇹🇭 862 151 43ms 26 Apr 2025 332nd Shanethegamer 🇺🇸 861 36 3ms 16 Jan 2022 332nd AlephSquirrel 861 36 54ms 29 Dec 2022 332nd bstrat 861 36 2ms 1 Jul 2024 335th DialFrost 🇸🇬 861 72 746ms 4 Sep 2025 335th sean-niemann 🇺🇸 861 72 711ms 16 Sep 2025 337th rucin93 🇵🇱 861 102 2ms 10 Jul 2025 338th kg583 🇺🇸 861 122 8ms 18 days ago 339th edsrzf 🇳🇿 860 103 107ms 17 Oct 2025 340th prplz 🇦🇺 860 128 71ms 19 Jan 2022 341st lynn 860 148 29ms 18 Jul 2023 342nd MeWhenI 🇻🇦 859 90 400ms 9 Aug 2023 343rd ovs-code 🇩🇪 859 119 14ms 4 Jul 2024 343rd GrayJoKing 🇦🇺 859 119 14ms 5 Jul 2024 345th JayXon 🇺🇸 859 172 1,775ms 22 Apr 2024 346th ovs-code 🇩🇪 858 89 413ms 5 Jul 2024 346th Steffan153 🇫🇮 858 89 442ms 7 Aug 2024 348th primo-ppcg 🇹🇭 858 95 4ms 21 Aug 2023 348th Shanethegamer 🇺🇸 858 95 4ms 25 Mar 2024 350th Shanethegamer 🇺🇸 858 122 1,318ms 21 Apr 2022 351st primo-ppcg 🇹🇭 857 61 2ms 19 Nov 2022 352nd MeWhenI 🇻🇦 857 84 8ms 2 Aug 2023 353rd MeWhenI 🇻🇦 857 90 12ms 15 Jan 2025 354th SirBogman 🇺🇸 857 103 9ms 10 May 2022 354th janbehrens 🇩🇪 857 103 9ms 23 Jun 2023 354th FlorianCassayre 🇫🇷 857 103 9ms 9 Sep 2023 354th orthoplex 🇨🇽 857 103 10ms 25 Nov 2023 354th abc7-12 857 103 9ms 26 Jun 2024 354th KatieLG 🇬🇧 857 103 10ms 8 Jul 2024 354th madex 🇩🇪 857 103 10ms 7 Aug 2025 354th snoozingnewt 🇨🇦 857 103 10ms 25 days ago 354th Lv0Sys 🇵🇱 857 103 10ms 12 days ago 354th FortuiteMan 🇫🇷 857 103 11ms 49 mins ago 364th primo-ppcg 🇹🇭 857 117 39ms 20 Jun 2022 365th CaedenHarper 🇨🇦 857 125 620ms 3 Oct 2025 366th Natanaelel 🇸🇪 857 131 148ms 18 May 2025 367th m-tkach 🇺🇦 856 83 9ms 10 Jan 2022 367th trinityy-7 856 83 9ms 13 Mar 2024 367th penbuvt 856 83 10ms 7 Nov 2024 370th Irratix 🇳🇱 856 110 2ms 14 May 2022 370th speles 🇺🇦 856 110 2ms 29 Oct 2023 372nd targrik 855 98 5ms 30 Jan 2025 373rd snoozingnewt 🇨🇦 854 89 79ms 25 days ago 374th clockworknazo 854 129 3ms 18 Sep 2022 375th GrayJoKing 🇦🇺 853 95 69ms 18 Sep 2023 376th MeWhenI 🇻🇦 853 103 2ms 13 Oct 2023 377th Shanethegamer 🇺🇸 853 113 457ms 21 Apr 2022 377th Steffan153 🇫🇮 853 113 446ms 23 Jul 2024 377th sean-niemann 🇺🇸 853 113 465ms 23 Mar 2025 380th ovs-code 🇩🇪 853 129 68ms 10 Feb 2023 381st stefangimmillaro 853 156 267ms 20 Oct 2023 382nd frosster 852 102 2ms 26 Mar 2025 383rd 386asm 🇺🇸 850 118 39ms 5 May 2023 384th the-zammers 850 132 140ms 1 Oct 2023 385th sisyphus-ppcg 🇦🇺 849 64 46ms 11 Jan 2022 385th GrayJoKing 🇦🇺 849 64 51ms 10 Feb 2022 387th m-tkach 🇺🇦 849 90 391ms 21 Jan 2024 387th sean-niemann 🇺🇸 849 90 405ms 28 Jan 2025 389th VictorFordham 849 104 10ms 20 Feb 2023 389th Alex-x90 🇺🇸 849 104 9ms 3 Aug 2023 389th mathisfun271 849 104 10ms 5 Feb 2024 389th EnTerr 849 104 9ms 8 Sep 2024 389th KasperKivimaeki 🇫🇮 849 104 10ms 11 Jul 2025 389th luuumine 🇫🇷 849 104 10ms 31 Oct 2025 395th edsrzf 🇳🇿 849 148 41ms 20 days ago 396th MeWhenI 🇻🇦 848 69 5ms 13 Aug 2024 396th Steffan153 🇫🇮 848 69 5ms 13 Aug 2024 398th ZakkkkAttackkkk 🇵🇭 848 111 2ms 9 Nov 2023 398th Szum123321 🇵🇱 848 111 2ms 9 Dec 2023 398th DialFrost 🇸🇬 848 111 1ms 20 Dec 2024 First Prev 321–400 of 1,566 Next Last