Tutorial in all languages in chars. 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 Chars Time Submitted 665th persistz 0 59 15ms 30 Jun 2025 665th LostSyntax21 🇬🇧 0 59 5ms 19 Jul 2025 665th vgamula 🇺🇦 0 59 15ms 5 Aug 2025 679th emgordon154 0 60 138ms 28 Nov 2024 679th xsot 🇸🇬 0 60 6ms 4 Dec 2024 679th Shanethegamer 🇺🇸 0 60 179ms 10 Jan 2025 679th Natanaelel 🇸🇪 0 60 3ms 26 Jan 2025 679th emgordon154 0 60 4 Feb 2025 679th klixel 🇨🇦 0 60 86ms 8 Apr 2025 679th swcnt 0 60 16ms 9 Apr 2025 679th rucin93 🇵🇱 0 60 192ms 17 Apr 2025 679th dokutan 0 60 215ms 6 Jun 2025 679th emgordon154 0 60 2ms 5 Aug 2025 689th Shanethegamer 🇺🇸 0 61 15ms 20 Nov 2024 689th stefangimmillaro 0 61 12ms 21 Nov 2024 689th error256 0 61 10ms 21 Nov 2024 689th error256 0 61 117ms 21 Nov 2024 689th ovs-code 🇩🇪 0 61 11ms 25 Nov 2024 689th GolfingSuccess 🇬🇷 0 61 15ms 25 Nov 2024 689th sean-niemann 🇺🇸 0 61 14ms 26 Nov 2024 689th duckyluuk 🇳🇱 0 61 14ms 26 Nov 2024 689th DialFrost 🇸🇬 0 61 10ms 26 Nov 2024 689th rucin93 🇵🇱 0 61 16ms 26 Nov 2024 689th emgordon154 0 61 13ms 28 Nov 2024 689th stefangimmillaro 0 61 6ms 3 Dec 2024 689th lukegustafson 🇺🇸 0 61 12ms 7 Dec 2024 689th MeWhenI 🇻🇦 0 61 12ms 11 Dec 2024 689th emplv 🇱🇻 0 61 12ms 11 Dec 2024 689th voytxt 🇨🇿 0 61 11ms 22 Dec 2024 689th Salutations45 0 61 11ms 29 Dec 2024 689th duckyluuk 🇳🇱 0 61 12 Jan 2025 689th CLOStrophobic 🇮🇹 0 61 17ms 22 Jan 2025 689th voytxt 🇨🇿 0 61 6ms 25 Jan 2025 689th m-tkach 🇺🇦 0 61 13ms 30 Jan 2025 689th Natanaelel 🇸🇪 0 61 12ms 2 Feb 2025 689th CaedenHarper 🇨🇦 0 61 10ms 3 Feb 2025 689th BalaM314 0 61 10ms 4 Feb 2025 689th kg583 🇺🇸 0 61 84ms 5 Feb 2025 689th GolfingSuccess 🇬🇷 0 61 123ms 5 Feb 2025 689th HumanoidCPU 0 61 5ms 7 Feb 2025 689th targrik 0 61 10ms 8 Feb 2025 689th MeWhenI 🇻🇦 0 61 5ms 14 Feb 2025 689th targrik 0 61 5ms 15 Feb 2025 689th attila8192 0 61 11ms 1 Mar 2025 689th targrik 0 61 2ms 14 Mar 2025 689th janlelis 0 61 14ms 31 Mar 2025 689th b-illy 🇬🇧 0 61 10ms 16 Apr 2025 689th janbehrens 🇩🇪 0 61 18ms 17 Apr 2025 689th pardouin 🇫🇷 0 61 11ms 17 Apr 2025 689th Shanethegamer 🇺🇸 0 61 125ms 17 Apr 2025 689th edsrzf 🇳🇿 0 61 14ms 17 Apr 2025 689th HumanoidCPU 0 61 121ms 18 Apr 2025 689th HumanoidCPU 0 61 12ms 18 Apr 2025 689th AlephSquirrel 0 61 12ms 20 Apr 2025 689th Sam-Vrgl 0 61 12ms 13 May 2025 689th c-py 0 61 18ms 14 May 2025 689th albanian-laundromat 0 61 126ms 6 Jun 2025 689th Andrey-Plotnikov 0 61 14ms 19 Jun 2025 689th a6166231 🇨🇳 0 61 13ms 20 Jun 2025 689th elana-teal 0 61 16ms 20 Jun 2025 689th BREMAUCY 🇫🇷 0 61 12ms 1 Jul 2025 689th RYSF13 🇨🇳 0 61 14ms 5 Jul 2025 689th p01 0 61 12ms 28 Jul 2025 689th KrausRaus 🇺🇸 0 61 12ms 29 Jul 2025 689th dmrichwa 🇺🇸 0 61 11ms 29 Jul 2025 689th dokutan 0 61 3ms 5 Aug 2025 689th gitchaell 🇧🇴 0 61 19ms 6 Aug 2025 689th lukepolak 0 61 14ms 7 Aug 2025 689th adrianbgo 0 61 15ms 7 Aug 2025 689th helbling 🇨🇭 0 61 12ms 28 Aug 2025 689th snoozingnewt 🇺🇸 0 61 130ms 15 Sep 2025 689th snoozingnewt 🇺🇸 0 61 12ms 15 Sep 2025 748th emgordon154 0 62 3ms 27 Nov 2024 748th CLOStrophobic 🇮🇹 0 62 4ms 4 Feb 2025 748th DialFrost 🇸🇬 0 62 8ms 15 Feb 2025 First Prev 676–750 of 2,699 Next Last