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 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 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 375th Steffan153 🇫🇮 853 113 475ms 23 Jul 2024 375th sean-niemann 🇺🇸 853 113 465ms 23 Mar 2025 378th ovs-code 🇩🇪 853 129 58ms 10 Feb 2023 379th stefangimmillaro 853 156 253ms 20 Oct 2023 380th frosster 852 102 2ms 26 Mar 2025 381st the-zammers 850 132 158ms 1 Oct 2023 382nd m-tkach 🇺🇦 849 90 400ms 21 Jan 2024 382nd sean-niemann 🇺🇸 849 90 447ms 28 Jan 2025 384th VictorFordham 849 104 9ms 20 Feb 2023 384th Alex-x90 🇺🇸 849 104 9ms 3 Aug 2023 384th mathisfun271 849 104 9ms 5 Feb 2024 384th EnTerr 849 104 9ms 8 Sep 2024 384th KasperKivimaeki 🇫🇮 849 104 15ms 11 Jul 2025 384th luuumine 🇫🇷 849 104 10ms 31 Oct 2025 390th 386asm 🇺🇸 849 118 40ms 5 May 2023 391st edsrzf 🇳🇿 849 148 39ms 8 days ago 392nd sisyphus-ppcg 🇦🇺 848 64 34ms 11 Jan 2022 392nd GrayJoKing 🇦🇺 848 64 42ms 10 Feb 2022 394th MeWhenI 🇻🇦 848 69 5ms 13 Aug 2024 394th Steffan153 🇫🇮 848 69 6ms 13 Aug 2024 396th ZakkkkAttackkkk 🇵🇭 848 111 2ms 9 Nov 2023 396th Szum123321 🇵🇱 848 111 2ms 9 Dec 2023 396th DialFrost 🇸🇬 848 111 2ms 20 Dec 2024 399th GrayJoKing 🇦🇺 847 130 3ms 12 Sep 2022 400th xsot 🇸🇬 846 55 3ms 6 Jul 2025 401st Shanethegamer 🇺🇸 846 90 2,926ms 28 Oct 2024 402nd GrayJoKing 🇦🇺 846 115 8ms 28 Jul 2023 403rd didion0 🇺🇸 845 84 9ms 25 Jan 2022 403rd 13x1 🇩🇪 845 84 10ms 15 May 2023 403rd biocommando 🇫🇮 845 84 10ms 11 Aug 2023 403rd deancureton 845 84 10ms 29 Dec 2024 403rd CaedenHarper 🇨🇦 845 84 10ms 22 Aug 2025 403rd solisolu 845 84 9ms 12 days ago 409th ovs-code 🇩🇪 845 114 446ms 26 Nov 2024 410th kaascevich 845 123 111ms 21 Jul 2025 411th lynn 844 124 1,341ms 16 Jan 2022 412th clockworknazo 843 62 2ms 17 Nov 2022 413th DialFrost 🇸🇬 843 66 289ms 10 Oct 2024 414th HumanoidCPU 843 127 342ms 8 Nov 2025 415th Sakisan 🇧🇪 842 64 64ms 30 Jun 2022 416th MeWhenI 🇻🇦 842 158 257ms 7 Jan 2025 417th ovs-code 🇩🇪 842 224 447ms 18 Apr 2025 418th TFeld00 🇩🇰 841 105 10ms 19 May 2022 418th stefangimmillaro 841 105 10ms 26 Dec 2022 418th betaveros 841 105 9ms 1 Jan 2023 418th 5cw 🇺🇸 841 105 10ms 3 May 2023 418th minhtrancccp 841 105 10ms 26 Sep 2023 418th lifthrasiir 🇰🇷 841 105 12ms 20 Nov 2024 418th Emutis 🇱🇹 841 105 9ms 4 Feb 2025 418th qpwoeirut 841 105 10ms 28 Sep 2025 426th Shanethegamer 🇺🇸 841 112 2ms 20 Apr 2022 427th Shanethegamer 🇺🇸 840 89 137ms 8 Jan 2025 427th emplv 🇱🇻 840 89 133ms 28 Mar 2025 427th ovs-code 🇩🇪 840 89 133ms 17 Apr 2025 430th Shanethegamer 🇺🇸 840 92 364ms 26 Mar 2024 431st jacobly0 🇺🇸 840 176 1,691ms 22 Apr 2024 432nd neel11235813 839 91 380ms 13 Mar 2024 432nd kg583 🇺🇸 839 91 416ms 21 Mar 2024 432nd bizy-coder 839 91 369ms 1 Apr 2024 432nd MeWhenI 🇻🇦 839 91 406ms 24 May 2024 432nd duckyluuk 🇳🇱 839 91 371ms 21 Jun 2024 432nd AlephSquirrel 839 91 422ms 3 Jul 2024 432nd CaedenHarper 🇨🇦 839 91 384ms 6 days ago 439th SirBogman 🇺🇸 838 37 2ms 27 May 2024 439th emgordon154 838 37 40ms 11 Sep 2024 439th Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 442nd 4hg 🇺🇸 837 52 36ms 26 Jul 2023 443rd DialFrost 🇸🇬 837 91 2,356ms 25 Oct 2024 444th GrayJoKing 🇦🇺 837 152 31ms 18 Jul 2023 445th edsrzf 🇳🇿 836 97 69ms 7 Oct 2025 446th Shanethegamer 🇺🇸 836 159 261ms 20 Apr 2022 447th MeWhenI 🇻🇦 835 65 37ms 7 Dec 2023 448th Natanaelel 🇸🇪 835 85 9ms 7 Feb 2023 448th HumanoidCPU 835 85 10ms 2 Mar 2025 450th JayXon 🇺🇸 835 98 77ms 9 Apr 2023 First Prev 376–450 of 1,557 Next Last