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 401st xsot 🇸🇬 847 55 3ms 6 Jul 2025 402nd prplz 🇦🇺 847 109 1ms 18 Jan 2022 402nd xsot 🇸🇬 847 109 2ms 1 Feb 2024 404th GrayJoKing 🇦🇺 847 130 3ms 12 Sep 2022 405th didion0 🇺🇸 846 84 10ms 25 Jan 2022 405th 13x1 🇩🇪 846 84 10ms 15 May 2023 405th biocommando 🇫🇮 846 84 11ms 11 Aug 2023 405th deancureton 846 84 11ms 29 Dec 2024 405th CaedenHarper 🇨🇦 846 84 9ms 22 Aug 2025 405th solisolu 846 84 10ms 23 Nov 2025 411th Shanethegamer 🇺🇸 846 90 2,336ms 28 Oct 2024 412th GrayJoKing 🇦🇺 846 115 9ms 28 Jul 2023 413th ovs-code 🇩🇪 845 114 439ms 26 Nov 2024 414th kaascevich 845 123 110ms 21 Jul 2025 415th DialFrost 🇸🇬 844 66 283ms 10 Oct 2024 416th lynn 844 124 1,521ms 16 Jan 2022 417th clockworknazo 843 62 2ms 17 Nov 2022 418th HumanoidCPU 843 127 504ms 8 Nov 2025 419th Sakisan 🇧🇪 842 64 1,032ms 30 Jun 2022 420th MeWhenI 🇻🇦 842 158 298ms 7 Jan 2025 421st ovs-code 🇩🇪 842 224 1,460ms 18 Apr 2025 422nd Shanethegamer 🇺🇸 841 92 444ms 26 Mar 2024 423rd TFeld00 🇩🇰 841 105 10ms 19 May 2022 423rd stefangimmillaro 841 105 10ms 26 Dec 2022 423rd betaveros 841 105 9ms 1 Jan 2023 423rd 5cw 🇺🇸 841 105 10ms 3 May 2023 423rd minhtrancccp 841 105 10ms 26 Sep 2023 423rd lifthrasiir 🇰🇷 841 105 10ms 20 Nov 2024 423rd Emutis 🇱🇹 841 105 10ms 4 Feb 2025 423rd qpwoeirut 841 105 10ms 28 Sep 2025 423rd FoxInTheClouds 841 105 10ms 5 days ago 432nd Shanethegamer 🇺🇸 840 89 130ms 8 Jan 2025 432nd emplv 🇱🇻 840 89 141ms 28 Mar 2025 432nd ovs-code 🇩🇪 840 89 131ms 17 Apr 2025 435th Irratix 🇳🇱 840 110 2ms 14 May 2022 435th speles 🇺🇦 840 110 2ms 29 Oct 2023 437th acotis 840 144 164ms 24 hours ago 438th jacobly0 🇺🇸 840 176 1,723ms 22 Apr 2024 439th neel11235813 839 91 461ms 13 Mar 2024 439th kg583 🇺🇸 839 91 466ms 21 Mar 2024 439th bizy-coder 839 91 475ms 1 Apr 2024 439th MeWhenI 🇻🇦 839 91 513ms 24 May 2024 439th duckyluuk 🇳🇱 839 91 372ms 21 Jun 2024 439th AlephSquirrel 839 91 481ms 3 Jul 2024 439th CaedenHarper 🇨🇦 839 91 437ms 30 Nov 2025 446th SirBogman 🇺🇸 838 37 2ms 27 May 2024 446th emgordon154 838 37 41ms 11 Sep 2024 446th Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 449th 4hg 🇺🇸 837 52 33ms 26 Jul 2023 450th DialFrost 🇸🇬 837 91 2,307ms 25 Oct 2024 451st MeWhenI 🇻🇦 836 65 38ms 7 Dec 2023 452nd Natanaelel 🇸🇪 836 85 10ms 7 Feb 2023 452nd HumanoidCPU 836 85 10ms 2 Mar 2025 454th edsrzf 🇳🇿 836 97 62ms 7 Oct 2025 455th Shanethegamer 🇺🇸 836 159 306ms 20 Apr 2022 456th JayXon 🇺🇸 835 98 87ms 9 Apr 2023 457th jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 458th drabart 🇵🇱 834 132 63ms 16 Dec 2023 459th Bulmenisaurus 833 106 10ms 2 Feb 2025 460th prplz 🇦🇺 832 93 434ms 18 Jan 2022 460th hemphen 832 93 411ms 28 Aug 2022 460th feberhard 832 93 461ms 6 Apr 2023 460th sean-niemann 🇺🇸 832 93 418ms 19 Apr 2025 464th ZakkkkAttackkkk 🇵🇭 832 111 2ms 9 Nov 2023 464th Szum123321 🇵🇱 832 111 2ms 9 Dec 2023 464th DialFrost 🇸🇬 832 111 1ms 20 Dec 2024 467th lynn 832 148 29ms 18 Jul 2023 468th dcgjb 831 67 265ms 14 Feb 2024 469th DialFrost 🇸🇬 831 90 133ms 3 Nov 2024 470th emplv 🇱🇻 831 160 296ms 6 Jan 2023 470th KasperKivimaeki 🇫🇮 831 160 375ms 20 Oct 2025 472nd jared-hughes 831 200 10ms 18 Dec 2024 473rd Shanethegamer 🇺🇸 830 63 2ms 13 May 2023 474th pardouin 🇫🇷 830 71 1,238ms 2 Sep 2025 475th inventshah 830 92 478ms 21 Jan 2024 475th GolfingSuccess 🇬🇷 830 92 402ms 2 Mar 2024 477th emplv 🇱🇻 830 101 5ms 3 Jul 2023 477th stefangimmillaro 830 101 4ms 12 Oct 2023 477th edsrzf 🇳🇿 830 101 5ms 7 Oct 2025 480th Shanethegamer 🇺🇸 828 107 111ms 24 May 2025 First Prev 401–480 of 1,597 Next Last