Tutorial in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st lyxal 🇦🇺 0 12 1,205ms 5 Feb 2025 1st GolfingSuccess 🇬🇷 0 12 1,086ms 15 Feb 2025 1st plcc0 0 12 1,071ms 21 Apr 2025 1st DialFrost 🇸🇬 0 12 1,133ms 22 Apr 2025 1st Shanethegamer 🇺🇸 0 12 1,115ms 23 Apr 2025 1st RYSF13 🇨🇳 0 12 1,096ms 18 May 2025 1st snoozingnewt 🇺🇸 0 12 1,105ms 15 Sep 2025 8th emgordon154 0 13 967ms 17 Feb 2025 8th dokutan 0 13 791ms 18 Aug 2025 10th Mukundan314 0 14 883ms 17 Apr 2025 11th themoonisacheese 0 15 871ms 21 Feb 2025 12th kg583 🇺🇸 0 17 394ms 7 Feb 2025 12th emgordon154 0 17 310ms 8 Feb 2025 12th plcc0 0 17 391ms 13 Feb 2025 12th GolfingSuccess 🇬🇷 0 17 396ms 15 Feb 2025 12th Shanethegamer 🇺🇸 0 17 350ms 17 Apr 2025 12th DialFrost 🇸🇬 0 17 399ms 17 Apr 2025 12th HumanoidCPU 0 17 368ms 18 Apr 2025 12th snoozingnewt 🇺🇸 0 17 327ms 15 Sep 2025 20th Shanethegamer 🇺🇸 0 20 71ms 4 Feb 2025 20th GolfingSuccess 🇬🇷 0 20 5 Feb 2025 20th HumanoidCPU 0 20 6 Feb 2025 20th edsrzf 🇳🇿 0 20 347ms 8 Feb 2025 20th plcc0 0 20 10 Feb 2025 20th 2bular 0 20 11 Feb 2025 20th Natanaelel 🇸🇪 0 20 11 Feb 2025 20th kg583 🇺🇸 0 20 13 Feb 2025 20th DialFrost 🇸🇬 0 20 13 Feb 2025 20th MeWhenI 🇻🇦 0 20 14 Feb 2025 20th targrik 0 20 14 Feb 2025 20th ndren 0 20 5 Apr 2025 20th darrenks 0 20 5 Apr 2025 20th Yewzir 🇧🇪 0 20 5 Apr 2025 20th frankgraziano 0 20 23 Apr 2025 20th emgordon154 0 20 3 May 2025 20th gigaprofisi 🇺🇸 0 20 17 Jun 2025 20th snoozingnewt 🇺🇸 0 20 15 Sep 2025 20th Babafaba 0 20 6 days ago 39th GolfingSuccess 🇬🇷 0 23 25 Nov 2024 39th AlephSquirrel 0 23 25 Nov 2024 39th lifthrasiir 🇰🇷 0 23 26 Nov 2024 39th ovs-code 🇩🇪 0 23 26 Nov 2024 39th CLOStrophobic 🇮🇹 0 23 19 Jan 2025 39th pardouin 🇫🇷 0 23 2 Feb 2025 39th MeWhenI 🇻🇦 0 23 2 Feb 2025 39th GolfingSuccess 🇬🇷 0 23 5 Feb 2025 39th plcc0 0 23 13 Feb 2025 39th plcc0 0 23 13 Feb 2025 39th emgordon154 0 23 19 Feb 2025 39th 2bular 0 23 3 Mar 2025 39th DialFrost 🇸🇬 0 23 17 Apr 2025 39th Shanethegamer 🇺🇸 0 23 57ms 17 Apr 2025 39th edsrzf 🇳🇿 0 23 17 Apr 2025 39th HumanoidCPU 0 23 18 Apr 2025 39th CaedenHarper 🇨🇦 0 23 18 Apr 2025 39th Shanethegamer 🇺🇸 0 23 140ms 20 May 2025 39th snoozingnewt 🇺🇸 0 23 15 Sep 2025 39th snoozingnewt 🇺🇸 0 23 15 Sep 2025 39th ndren 0 23 27 days ago 39th CornerMercury 🇬🇧 0 23 27 days ago 61st Natanaelel 🇸🇪 0 24 23 Jan 2025 61st TheZwierzLF 🇵🇱 0 24 230ms 1 Jun 2025 63rd Shanethegamer 🇺🇸 0 26 246ms 20 Nov 2024 63rd btnlq 0 26 200ms 26 Nov 2024 63rd sean-niemann 🇺🇸 0 26 239ms 26 Nov 2024 63rd DialFrost 🇸🇬 0 26 259ms 26 Nov 2024 63rd emgordon154 0 26 232ms 28 Nov 2024 63rd stefangimmillaro 0 26 231ms 3 Dec 2024 63rd SirBogman 🇺🇸 0 26 241ms 3 Dec 2024 63rd MeWhenI 🇻🇦 0 26 219ms 11 Dec 2024 63rd GolfingSuccess 🇬🇷 0 26 237ms 21 Dec 2024 63rd CaedenHarper 🇨🇦 0 26 260ms 4 Jan 2025 63rd CLOStrophobic 🇮🇹 0 26 243ms 22 Jan 2025 63rd sisyphus-ppcg 🇦🇺 0 26 241ms 31 Jan 2025 63rd pardouin 🇫🇷 0 26 234ms 2 Feb 2025 1–75 of 2,738 Next Last