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 Rectangle Fill 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 397th KasperKivimaeki 🇫🇮 849 104 10ms 11 Jul 2025 397th luuumine 🇫🇷 849 104 10ms 31 Oct 2025 403rd edsrzf 🇳🇿 849 148 41ms 27 Nov 2025 404th xsot 🇸🇬 848 55 3ms 6 Jul 2025 405th ovs-code 🇩🇪 848 89 456ms 5 Jul 2024 406th prplz 🇦🇺 847 109 1ms 18 Jan 2022 406th xsot 🇸🇬 847 109 2ms 1 Feb 2024 408th didion0 🇺🇸 846 84 9ms 25 Jan 2022 408th 13x1 🇩🇪 846 84 10ms 15 May 2023 408th biocommando 🇫🇮 846 84 11ms 11 Aug 2023 408th deancureton 846 84 11ms 29 Dec 2024 408th CaedenHarper 🇨🇦 846 84 11ms 22 Aug 2025 408th solisolu 846 84 9ms 23 Nov 2025 414th MeWhenI 🇻🇦 846 90 113ms 20 Oct 2022 415th GrayJoKing 🇦🇺 846 115 9ms 28 Jul 2023 416th ovs-code 🇩🇪 845 114 471ms 26 Nov 2024 417th lynn 844 124 1,396ms 16 Jan 2022 418th clockworknazo 843 62 1ms 17 Nov 2022 419th DialFrost 🇸🇬 843 66 283ms 10 Oct 2024 420th kaascevich 843 123 119ms 21 Jul 2025 421st HumanoidCPU 843 127 504ms 8 Nov 2025 422nd MeWhenI 🇻🇦 843 158 284ms 7 Jan 2025 423rd Sakisan 🇧🇪 842 64 1,061ms 30 Jun 2022 424th ovs-code 🇩🇪 842 224 1,422ms 18 Apr 2025 425th Shanethegamer 🇺🇸 841 92 526ms 26 Mar 2024 426th TFeld00 🇩🇰 841 105 10ms 19 May 2022 426th stefangimmillaro 841 105 10ms 26 Dec 2022 426th betaveros 841 105 9ms 1 Jan 2023 426th 5cw 🇺🇸 841 105 10ms 3 May 2023 426th minhtrancccp 841 105 10ms 26 Sep 2023 426th lifthrasiir 🇰🇷 841 105 10ms 20 Nov 2024 426th qpwoeirut 841 105 10ms 28 Sep 2025 433rd drabart 🇵🇱 841 132 62ms 16 Dec 2023 434th acotis 841 144 174ms 10 Feb 2026 435th Irratix 🇳🇱 840 110 2ms 14 May 2022 435th speles 🇺🇦 840 110 2ms 29 Oct 2023 437th jacobly0 🇺🇸 840 176 1,723ms 22 Apr 2024 438th m-tkach 🇺🇦 839 90 455ms 21 Jan 2024 438th sean-niemann 🇺🇸 839 90 470ms 28 Jan 2025 440th SirBogman 🇺🇸 838 37 2ms 27 May 2024 440th emgordon154 838 37 40ms 11 Sep 2024 440th Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 443rd 4hg 🇺🇸 838 52 32ms 26 Jul 2023 444th Shanethegamer 🇺🇸 838 159 287ms 20 Apr 2022 445th MeWhenI 🇻🇦 836 65 36ms 7 Dec 2023 446th MeWhenI 🇻🇦 836 69 5ms 13 Aug 2024 447th Natanaelel 🇸🇪 836 85 9ms 7 Feb 2023 447th HumanoidCPU 836 85 12ms 2 Mar 2025 449th edsrzf 🇳🇿 836 97 62ms 7 Oct 2025 450th jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 451st clockworknazo 834 129 2ms 18 Sep 2022 452nd Alex-x90 🇺🇸 834 133 63ms 8 Aug 2023 452nd Yewzir 🇧🇪 834 133 62ms 29 Nov 2023 454th Bulmenisaurus 833 106 10ms 2 Feb 2025 455th prplz 🇦🇺 832 93 558ms 18 Jan 2022 455th hemphen 832 93 625ms 28 Aug 2022 455th feberhard 832 93 536ms 6 Apr 2023 455th sean-niemann 🇺🇸 832 93 540ms 19 Apr 2025 459th ZakkkkAttackkkk 🇵🇭 832 111 1ms 9 Nov 2023 459th Szum123321 🇵🇱 832 111 2ms 9 Dec 2023 459th DialFrost 🇸🇬 832 111 1ms 20 Dec 2024 462nd lynn 832 148 30ms 18 Jul 2023 463rd emplv 🇱🇻 832 160 306ms 6 Jan 2023 463rd KasperKivimaeki 🇫🇮 832 160 293ms 20 Oct 2025 465th dcgjb 831 67 332ms 14 Feb 2024 466th emplv 🇱🇻 831 101 7ms 3 Jul 2023 466th stefangimmillaro 831 101 7ms 12 Oct 2023 466th edsrzf 🇳🇿 831 101 6ms 7 Oct 2025 469th Shanethegamer 🇺🇸 830 63 1ms 13 May 2023 470th pardouin 🇫🇷 830 71 1,321ms 2 Sep 2025 471st neel11235813 830 91 419ms 13 Mar 2024 471st kg583 🇺🇸 830 91 466ms 21 Mar 2024 471st bizy-coder 830 91 475ms 1 Apr 2024 471st MeWhenI 🇻🇦 830 91 436ms 24 May 2024 471st duckyluuk 🇳🇱 830 91 372ms 21 Jun 2024 471st AlephSquirrel 830 91 469ms 3 Jul 2024 471st CaedenHarper 🇨🇦 830 91 437ms 30 Nov 2025 478th rucin93 🇵🇱 828 86 138ms 2 days ago 479th Shanethegamer 🇺🇸 828 107 152ms 24 May 2025 480th GrayJoKing 🇦🇺 828 130 2ms 12 Sep 2022 First Prev 401–480 of 1,613 Next Last