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 401st ovs-code 🇩🇪 848 89 456ms 5 Jul 2024 402nd prplz 🇦🇺 848 109 1ms 18 Jan 2022 402nd xsot 🇸🇬 848 109 2ms 1 Feb 2024 404th didion0 🇺🇸 846 84 10ms 25 Jan 2022 404th 13x1 🇩🇪 846 84 10ms 15 May 2023 404th biocommando 🇫🇮 846 84 10ms 11 Aug 2023 404th deancureton 846 84 10ms 29 Dec 2024 404th CaedenHarper 🇨🇦 846 84 9ms 22 Aug 2025 404th solisolu 846 84 9ms 23 Nov 2025 410th MeWhenI 🇻🇦 846 90 112ms 20 Oct 2022 411th GrayJoKing 🇦🇺 846 115 9ms 28 Jul 2023 412th ovs-code 🇩🇪 845 114 471ms 26 Nov 2024 413th kaascevich 845 123 119ms 21 Jul 2025 414th DialFrost 🇸🇬 844 66 283ms 10 Oct 2024 415th GrayJoKing 🇦🇺 844 118 6ms 8 days ago 415th edsrzf 🇳🇿 844 118 7ms 2 hours ago 417th lynn 844 124 1,470ms 16 Jan 2022 418th clockworknazo 843 62 2ms 17 Nov 2022 419th HumanoidCPU 843 127 504ms 8 Nov 2025 420th Sakisan 🇧🇪 842 64 1,061ms 30 Jun 2022 421st MeWhenI 🇻🇦 842 158 293ms 7 Jan 2025 422nd ovs-code 🇩🇪 842 224 1,417ms 18 Apr 2025 423rd Shanethegamer 🇺🇸 841 92 444ms 26 Mar 2024 424th TFeld00 🇩🇰 841 105 10ms 19 May 2022 424th stefangimmillaro 841 105 10ms 26 Dec 2022 424th betaveros 841 105 9ms 1 Jan 2023 424th 5cw 🇺🇸 841 105 10ms 3 May 2023 424th minhtrancccp 841 105 10ms 26 Sep 2023 424th lifthrasiir 🇰🇷 841 105 10ms 20 Nov 2024 424th Emutis 🇱🇹 841 105 10ms 4 Feb 2025 424th qpwoeirut 841 105 10ms 28 Sep 2025 432nd Irratix 🇳🇱 840 110 2ms 14 May 2022 432nd speles 🇺🇦 840 110 2ms 29 Oct 2023 434th acotis 840 144 167ms 23 days ago 435th jacobly0 🇺🇸 840 176 1,723ms 22 Apr 2024 436th m-tkach 🇺🇦 839 90 475ms 21 Jan 2024 436th sean-niemann 🇺🇸 839 90 470ms 28 Jan 2025 438th SirBogman 🇺🇸 838 37 2ms 27 May 2024 438th emgordon154 838 37 41ms 11 Sep 2024 438th Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 441st 4hg 🇺🇸 837 52 33ms 26 Jul 2023 442nd MeWhenI 🇻🇦 836 65 36ms 7 Dec 2023 443rd MeWhenI 🇻🇦 836 69 5ms 13 Aug 2024 444th Natanaelel 🇸🇪 836 85 11ms 7 Feb 2023 444th HumanoidCPU 836 85 10ms 2 Mar 2025 446th edsrzf 🇳🇿 836 97 62ms 7 Oct 2025 447th Shanethegamer 🇺🇸 836 159 294ms 20 Apr 2022 448th jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 449th clockworknazo 834 129 2ms 18 Sep 2022 450th drabart 🇵🇱 834 132 56ms 16 Dec 2023 451st Bulmenisaurus 833 106 10ms 2 Feb 2025 452nd ZakkkkAttackkkk 🇵🇭 833 111 1ms 9 Nov 2023 452nd Szum123321 🇵🇱 833 111 2ms 9 Dec 2023 452nd DialFrost 🇸🇬 833 111 1ms 20 Dec 2024 455th prplz 🇦🇺 832 93 434ms 18 Jan 2022 455th hemphen 832 93 411ms 28 Aug 2022 455th feberhard 832 93 461ms 6 Apr 2023 455th sean-niemann 🇺🇸 832 93 418ms 19 Apr 2025 459th lynn 832 148 30ms 18 Jul 2023 460th dcgjb 831 67 265ms 14 Feb 2024 461st emplv 🇱🇻 831 160 284ms 6 Jan 2023 461st KasperKivimaeki 🇫🇮 831 160 335ms 20 Oct 2025 463rd jared-hughes 831 200 8ms 18 Dec 2024 464th Shanethegamer 🇺🇸 830 63 1ms 13 May 2023 465th pardouin 🇫🇷 830 71 1,238ms 2 Sep 2025 466th neel11235813 830 91 461ms 13 Mar 2024 466th kg583 🇺🇸 830 91 466ms 21 Mar 2024 466th bizy-coder 830 91 475ms 1 Apr 2024 466th MeWhenI 🇻🇦 830 91 480ms 24 May 2024 466th duckyluuk 🇳🇱 830 91 372ms 21 Jun 2024 466th AlephSquirrel 830 91 469ms 3 Jul 2024 466th CaedenHarper 🇨🇦 830 91 437ms 30 Nov 2025 473rd emplv 🇱🇻 830 101 6ms 3 Jul 2023 473rd stefangimmillaro 830 101 4ms 12 Oct 2023 473rd edsrzf 🇳🇿 830 101 5ms 7 Oct 2025 476th Shanethegamer 🇺🇸 828 107 111ms 24 May 2025 477th GrayJoKing 🇦🇺 828 130 2ms 12 Sep 2022 478th Alex-x90 🇺🇸 828 133 55ms 8 Aug 2023 478th Yewzir 🇧🇪 828 133 58ms 29 Nov 2023 480th CLOStrophobic 🇮🇹 827 123 8ms 21 Jan 2025 First Prev 401–480 of 1,612 Next Last