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 ><> 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 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 ><> 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 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 314th Yewzir 🇧🇪 866 102 10ms 22 Jun 2024 314th bzijlema 🇳🇱 866 102 10ms 15 Oct 2024 314th moustave 866 102 10ms 25 Jun 2025 314th blaztoma 🇱🇹 866 102 11ms 9 Oct 2025 314th Babafaba 866 102 10ms 28 Nov 2025 326th MeWhenI 🇻🇦 865 90 125ms 20 Oct 2022 327th primo-ppcg 🇹🇭 864 97 5ms 4 Jul 2023 328th edsrzf 🇳🇿 864 124 516ms 24 Sep 2025 328th dokutan 864 124 491ms 24 Sep 2025 330th arjanadriaanse 🇳🇱 864 130 141ms 8 Feb 2022 330th annaproxy 864 130 144ms 8 Feb 2022 332nd primo-ppcg 🇹🇭 864 151 42ms 26 Apr 2025 333rd nwellnhof 🇩🇪 863 54 4ms 22 May 2022 334th ovs-code 🇩🇪 863 63 36ms 9 May 2023 334th nwellnhof 🇩🇪 863 63 38ms 18 Jul 2023 336th Steffan153 🇫🇮 862 87 136ms 11 hours ago 337th Shanethegamer 🇺🇸 861 36 3ms 16 Jan 2022 337th AlephSquirrel 861 36 40ms 29 Dec 2022 337th bstrat 861 36 2ms 1 Jul 2024 340th DialFrost 🇸🇬 861 72 1,116ms 4 Sep 2025 340th sean-niemann 🇺🇸 861 72 1,031ms 16 Sep 2025 342nd rucin93 🇵🇱 861 102 2ms 10 Jul 2025 343rd edsrzf 🇳🇿 861 143 31ms 45 hours ago 344th Steffan153 🇫🇮 860 68 5ms 3 hours ago 345th MeWhenI 🇻🇦 860 90 464ms 9 Aug 2023 346th edsrzf 🇳🇿 860 103 113ms 17 Oct 2025 347th prplz 🇦🇺 860 128 56ms 19 Jan 2022 348th primo-ppcg 🇹🇭 859 117 39ms 20 Jun 2022 349th ovs-code 🇩🇪 859 119 14ms 4 Jul 2024 349th GrayJoKing 🇦🇺 859 119 14ms 5 Jul 2024 351st JayXon 🇺🇸 859 172 1,775ms 22 Apr 2024 352nd ovs-code 🇩🇪 858 89 456ms 5 Jul 2024 352nd Steffan153 🇫🇮 858 89 569ms 7 Aug 2024 354th primo-ppcg 🇹🇭 858 95 4ms 21 Aug 2023 354th Shanethegamer 🇺🇸 858 95 4ms 25 Mar 2024 354th kg583 🇺🇸 858 95 5ms 32 hours ago 357th Shanethegamer 🇺🇸 858 122 1,381ms 21 Apr 2022 358th Natanaelel 🇸🇪 858 131 148ms 18 May 2025 359th primo-ppcg 🇹🇭 857 61 2ms 19 Nov 2022 360th MeWhenI 🇻🇦 857 84 8ms 2 Aug 2023 361st MeWhenI 🇻🇦 857 90 20ms 15 Jan 2025 362nd SirBogman 🇺🇸 857 103 10ms 10 May 2022 362nd janbehrens 🇩🇪 857 103 9ms 23 Jun 2023 362nd FlorianCassayre 🇫🇷 857 103 10ms 9 Sep 2023 362nd orthoplex 🇨🇽 857 103 11ms 25 Nov 2023 362nd abc7-12 857 103 10ms 26 Jun 2024 362nd KatieLG 🇬🇧 857 103 10ms 8 Jul 2024 362nd madex 🇩🇪 857 103 10ms 7 Aug 2025 362nd snoozingnewt 🇨🇦 857 103 10ms 22 Nov 2025 362nd Lv0Sys 🇵🇱 857 103 11ms 6 Dec 2025 362nd FortuiteMan 🇫🇷 857 103 11ms 18 Dec 2025 372nd CaedenHarper 🇨🇦 857 125 751ms 3 Oct 2025 373rd m-tkach 🇺🇦 856 83 9ms 10 Jan 2022 373rd trinityy-7 856 83 10ms 13 Mar 2024 373rd penbuvt 856 83 11ms 7 Nov 2024 376th targrik 855 98 5ms 30 Jan 2025 377th Alex-x90 🇺🇸 855 108 2ms 8 Aug 2023 378th Shanethegamer 🇺🇸 855 144 29ms 45 hours ago 379th snoozingnewt 🇨🇦 854 89 79ms 22 Nov 2025 380th clockworknazo 854 129 3ms 18 Sep 2022 381st GrayJoKing 🇦🇺 853 95 69ms 18 Sep 2023 382nd MeWhenI 🇻🇦 853 103 2ms 13 Oct 2023 383rd Shanethegamer 🇺🇸 853 113 457ms 21 Apr 2022 383rd Steffan153 🇫🇮 853 113 446ms 23 Jul 2024 383rd sean-niemann 🇺🇸 853 113 465ms 23 Mar 2025 386th ovs-code 🇩🇪 853 129 61ms 10 Feb 2023 387th stefangimmillaro 853 156 305ms 20 Oct 2023 388th 386asm 🇺🇸 852 118 39ms 5 May 2023 389th the-zammers 851 132 140ms 1 Oct 2023 390th sisyphus-ppcg 🇦🇺 849 64 43ms 11 Jan 2022 390th GrayJoKing 🇦🇺 849 64 40ms 10 Feb 2022 392nd m-tkach 🇺🇦 849 90 475ms 21 Jan 2024 392nd sean-niemann 🇺🇸 849 90 470ms 28 Jan 2025 394th VictorFordham 849 104 11ms 20 Feb 2023 394th Alex-x90 🇺🇸 849 104 11ms 3 Aug 2023 394th mathisfun271 849 104 9ms 5 Feb 2024 394th EnTerr 849 104 11ms 8 Sep 2024 394th KasperKivimaeki 🇫🇮 849 104 10ms 11 Jul 2025 394th luuumine 🇫🇷 849 104 11ms 31 Oct 2025 400th edsrzf 🇳🇿 849 148 41ms 27 Nov 2025 First Prev 321–400 of 1,598 Next Last