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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 376th the-zammers 850 132 158ms 1 Oct 2023 377th m-tkach 🇺🇦 849 90 450ms 21 Jan 2024 377th sean-niemann 🇺🇸 849 90 523ms 28 Jan 2025 379th VictorFordham 849 104 10ms 20 Feb 2023 379th Alex-x90 🇺🇸 849 104 10ms 3 Aug 2023 379th mathisfun271 849 104 9ms 5 Feb 2024 379th EnTerr 849 104 9ms 8 Sep 2024 379th KasperKivimaeki 🇫🇮 849 104 9ms 11 Jul 2025 379th luuumine 🇫🇷 849 104 9ms 27 days ago 385th 386asm 🇺🇸 849 118 40ms 5 May 2023 386th sisyphus-ppcg 🇦🇺 848 64 38ms 11 Jan 2022 386th GrayJoKing 🇦🇺 848 64 42ms 10 Feb 2022 388th MeWhenI 🇻🇦 848 69 5ms 13 Aug 2024 388th Steffan153 🇫🇮 848 69 6ms 13 Aug 2024 390th ZakkkkAttackkkk 🇵🇭 848 111 2ms 9 Nov 2023 390th Szum123321 🇵🇱 848 111 2ms 9 Dec 2023 390th DialFrost 🇸🇬 848 111 2ms 20 Dec 2024 393rd edsrzf 🇳🇿 848 151 40ms 7 Apr 2025 394th GrayJoKing 🇦🇺 847 130 3ms 12 Sep 2022 395th xsot 🇸🇬 846 55 4ms 6 Jul 2025 396th Shanethegamer 🇺🇸 846 90 2,926ms 28 Oct 2024 397th GrayJoKing 🇦🇺 846 115 8ms 28 Jul 2023 398th didion0 🇺🇸 845 84 9ms 25 Jan 2022 398th 13x1 🇩🇪 845 84 9ms 15 May 2023 398th biocommando 🇫🇮 845 84 9ms 11 Aug 2023 398th deancureton 845 84 9ms 29 Dec 2024 398th CaedenHarper 🇨🇦 845 84 10ms 22 Aug 2025 398th solisolu 845 84 9ms 3 days ago 404th ovs-code 🇩🇪 845 114 446ms 26 Nov 2024 405th kaascevich 845 123 111ms 21 Jul 2025 406th lynn 844 124 1,448ms 16 Jan 2022 407th clockworknazo 843 62 2ms 17 Nov 2022 408th DialFrost 🇸🇬 843 66 289ms 10 Oct 2024 409th HumanoidCPU 843 127 342ms 19 days ago 410th Sakisan 🇧🇪 842 64 64ms 30 Jun 2022 411th MeWhenI 🇻🇦 842 158 255ms 7 Jan 2025 412th ovs-code 🇩🇪 842 224 429ms 18 Apr 2025 413th TFeld00 🇩🇰 841 105 9ms 19 May 2022 413th stefangimmillaro 841 105 10ms 26 Dec 2022 413th betaveros 841 105 12ms 1 Jan 2023 413th 5cw 🇺🇸 841 105 9ms 3 May 2023 413th minhtrancccp 841 105 10ms 26 Sep 2023 413th lifthrasiir 🇰🇷 841 105 11ms 20 Nov 2024 413th Emutis 🇱🇹 841 105 9ms 4 Feb 2025 413th qpwoeirut 841 105 14ms 28 Sep 2025 421st Shanethegamer 🇺🇸 841 112 2ms 20 Apr 2022 422nd Shanethegamer 🇺🇸 840 89 137ms 8 Jan 2025 422nd emplv 🇱🇻 840 89 133ms 28 Mar 2025 422nd ovs-code 🇩🇪 840 89 133ms 17 Apr 2025 425th Shanethegamer 🇺🇸 840 92 364ms 26 Mar 2024 426th CLOStrophobic 🇮🇹 840 123 8ms 21 Jan 2025 427th jacobly0 🇺🇸 840 176 1,691ms 22 Apr 2024 428th neel11235813 839 91 404ms 13 Mar 2024 428th kg583 🇺🇸 839 91 457ms 21 Mar 2024 428th bizy-coder 839 91 431ms 1 Apr 2024 428th MeWhenI 🇻🇦 839 91 526ms 24 May 2024 428th duckyluuk 🇳🇱 839 91 407ms 21 Jun 2024 428th AlephSquirrel 839 91 463ms 3 Jul 2024 434th SirBogman 🇺🇸 838 37 2ms 27 May 2024 434th emgordon154 838 37 40ms 11 Sep 2024 434th Yewzir 🇧🇪 838 37 2ms 19 Dec 2024 437th 4hg 🇺🇸 837 52 36ms 26 Jul 2023 438th DialFrost 🇸🇬 837 91 2,356ms 25 Oct 2024 439th GrayJoKing 🇦🇺 837 152 31ms 18 Jul 2023 440th edsrzf 🇳🇿 836 97 69ms 7 Oct 2025 441st Shanethegamer 🇺🇸 836 159 260ms 20 Apr 2022 442nd MeWhenI 🇻🇦 835 65 37ms 7 Dec 2023 443rd Natanaelel 🇸🇪 835 85 9ms 7 Feb 2023 443rd HumanoidCPU 835 85 10ms 2 Mar 2025 445th JayXon 🇺🇸 835 98 103ms 9 Apr 2023 446th jacobly0 🇺🇸 835 104 2ms 11 Sep 2023 447th drabart 🇵🇱 834 132 53ms 16 Dec 2023 448th Bulmenisaurus 833 106 10ms 2 Feb 2025 449th Yewzir 🇧🇪 833 113 2ms 29 Nov 2023 449th drabart 🇵🇱 833 113 2ms 18 Dec 2023 First Prev 376–450 of 1,551 Next Last