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 310th Flekay 🇩🇪 866 102 11ms 14 days ago 310th FoxInTheClouds 866 102 10ms 14 days ago 310th snoozingnewt 🇨🇦 866 102 10ms 13 days ago 310th edsrzf 🇳🇿 866 102 11ms 2 days ago 325th prplz 🇦🇺 866 128 58ms 19 Jan 2022 326th primo-ppcg 🇹🇭 865 151 42ms 26 Apr 2025 327th primo-ppcg 🇹🇭 864 97 5ms 4 Jul 2023 328th HumanoidCPU 864 120 110ms 3 Mar 2025 329th edsrzf 🇳🇿 864 124 488ms 24 Sep 2025 329th dokutan 864 124 491ms 24 Sep 2025 331st arjanadriaanse 🇳🇱 864 130 141ms 8 Feb 2022 331st annaproxy 864 130 144ms 8 Feb 2022 333rd nwellnhof 🇩🇪 863 54 4ms 22 May 2022 334th ovs-code 🇩🇪 863 63 36ms 9 May 2023 334th nwellnhof 🇩🇪 863 63 36ms 18 Jul 2023 336th Shanethegamer 🇺🇸 861 36 2ms 16 Jan 2022 336th AlephSquirrel 861 36 40ms 29 Dec 2022 336th bstrat 861 36 2ms 1 Jul 2024 339th rucin93 🇵🇱 861 102 2ms 10 Jul 2025 340th edsrzf 🇳🇿 861 143 30ms 24 days ago 341st edsrzf 🇳🇿 860 103 106ms 17 Oct 2025 342nd edsrzf 🇳🇿 860 119 8ms 2 Mar 2025 342nd kg583 🇺🇸 860 119 7ms 23 days ago 344th ovs-code 🇩🇪 860 129 54ms 10 Feb 2023 345th MeWhenI 🇻🇦 859 90 445ms 9 Aug 2023 346th primo-ppcg 🇹🇭 859 117 36ms 20 Jun 2022 347th ovs-code 🇩🇪 859 119 15ms 4 Jul 2024 347th GrayJoKing 🇦🇺 859 119 15ms 5 Jul 2024 349th JayXon 🇺🇸 859 172 1,775ms 22 Apr 2024 350th primo-ppcg 🇹🇭 858 95 4ms 21 Aug 2023 350th Shanethegamer 🇺🇸 858 95 4ms 25 Mar 2024 350th kg583 🇺🇸 858 95 4ms 23 days ago 353rd Shanethegamer 🇺🇸 858 122 1,381ms 21 Apr 2022 354th Natanaelel 🇸🇪 858 131 148ms 18 May 2025 355th primo-ppcg 🇹🇭 857 61 3ms 19 Nov 2022 356th MeWhenI 🇻🇦 857 90 13ms 15 Jan 2025 357th SirBogman 🇺🇸 857 103 10ms 10 May 2022 357th janbehrens 🇩🇪 857 103 9ms 23 Jun 2023 357th FlorianCassayre 🇫🇷 857 103 9ms 9 Sep 2023 357th orthoplex 🇨🇽 857 103 10ms 25 Nov 2023 357th abc7-12 857 103 10ms 26 Jun 2024 357th KatieLG 🇬🇧 857 103 10ms 8 Jul 2024 357th madex 🇩🇪 857 103 10ms 7 Aug 2025 357th Lv0Sys 🇵🇱 857 103 11ms 6 Dec 2025 357th FortuiteMan 🇫🇷 857 103 10ms 18 Dec 2025 357th firegene 🇮🇪 857 103 10ms 6 days ago 367th CaedenHarper 🇨🇦 857 125 544ms 3 Oct 2025 368th m-tkach 🇺🇦 856 83 10ms 10 Jan 2022 368th trinityy-7 856 83 11ms 13 Mar 2024 368th penbuvt 856 83 10ms 7 Nov 2024 371st targrik 855 98 5ms 30 Jan 2025 372nd Alex-x90 🇺🇸 855 108 2ms 8 Aug 2023 373rd Shanethegamer 🇺🇸 855 144 29ms 24 days ago 374th snoozingnewt 🇨🇦 854 89 77ms 22 Nov 2025 375th Shanethegamer 🇺🇸 854 126 2ms 10 Sep 2022 375th inventshah 854 126 2ms 18 Sep 2022 377th GrayJoKing 🇦🇺 853 95 69ms 18 Sep 2023 378th MeWhenI 🇻🇦 853 103 2ms 13 Oct 2023 379th Shanethegamer 🇺🇸 853 113 437ms 21 Apr 2022 379th Steffan153 🇫🇮 853 113 456ms 23 Jul 2024 379th sean-niemann 🇺🇸 853 113 469ms 23 Mar 2025 382nd stefangimmillaro 853 156 291ms 20 Oct 2023 383rd 386asm 🇺🇸 852 118 38ms 5 May 2023 384th Shanethegamer 🇺🇸 852 120 14ms 14 Dec 2023 384th error256 852 120 5ms 23 days ago 386th the-zammers 851 132 140ms 1 Oct 2023 387th sisyphus-ppcg 🇦🇺 849 64 37ms 11 Jan 2022 387th GrayJoKing 🇦🇺 849 64 36ms 10 Feb 2022 389th VictorFordham 849 104 10ms 20 Feb 2023 389th Alex-x90 🇺🇸 849 104 10ms 3 Aug 2023 389th mathisfun271 849 104 9ms 5 Feb 2024 389th EnTerr 849 104 10ms 8 Sep 2024 389th KasperKivimaeki 🇫🇮 849 104 10ms 11 Jul 2025 389th luuumine 🇫🇷 849 104 10ms 31 Oct 2025 395th edsrzf 🇳🇿 849 148 41ms 27 Nov 2025 396th xsot 🇸🇬 848 55 3ms 6 Jul 2025 397th ovs-code 🇩🇪 848 89 456ms 5 Jul 2024 398th prplz 🇦🇺 847 109 1ms 18 Jan 2022 398th xsot 🇸🇬 847 109 2ms 1 Feb 2024 400th didion0 🇺🇸 846 84 10ms 25 Jan 2022 First Prev 321–400 of 1,598 Next Last