Tutorial in C 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 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 Transpose Sentence 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 Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Transpose Sentence 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 Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 1st rhdqor213 0 68 16 Apr 2025 2nd KasperKivimaeki 🇫🇮 0 70 16 Apr 2025 2nd edsrzf 🇳🇿 0 70 18 Apr 2025 2nd sean-niemann 🇺🇸 0 70 18 Apr 2025 2nd rucin93 🇵🇱 0 70 18 Apr 2025 2nd DialFrost 🇸🇬 0 70 18 Apr 2025 2nd CaedenHarper 🇨🇦 0 70 18 Apr 2025 2nd HumanoidCPU 0 70 19 Apr 2025 2nd GolfingSuccess 🇬🇷 0 70 19 Apr 2025 2nd inventshah 0 70 23 Apr 2025 2nd m-tkach 🇺🇦 0 70 23 Apr 2025 2nd Mukundan314 0 70 25 Apr 2025 2nd frankgraziano 0 70 8 May 2025 2nd RYSF13 🇨🇳 0 70 17 May 2025 2nd Shanethegamer 🇺🇸 0 70 6 Jun 2025 2nd Jigglypuffed 0 70 8 hours ago 17th zacjl 0 71 23 Jan 2025 17th Lydxn 🇨🇦 0 71 31 Jan 2025 17th kdx2a 0 71 12 Feb 2025 17th FlyingPenguin223 0 71 12 Feb 2025 17th BoBz200 0 71 11 Mar 2025 17th xsot 🇸🇬 0 71 17 Apr 2025 23rd ovs-code 🇩🇪 0 72 17 Apr 2025 23rd yanjs 0 72 10 days ago 25th Alex-x90 🇺🇸 0 74 28 Nov 2024 25th prplz 🇦🇺 0 74 23 Jan 2025 25th CLOStrophobic 🇮🇹 0 74 25 Jan 2025 25th madex 🇩🇪 0 74 13 Feb 2025 25th Zilog80a 0 74 24 May 2025 30th qwertyuiop3 🇷🇺 0 75 3 Jun 2025 31st oscargeerts 0 76 22 days ago 32nd SirBogman 🇺🇸 0 77 3 Dec 2024 32nd error256 0 77 23 Jan 2025 32nd b-illy 🇬🇧 0 77 23 Jan 2025 32nd voytxt 🇨🇿 0 77 16 Apr 2025 36th MeWhenI 🇻🇦 0 78 11 Dec 2024 36th nilan425 0 78 16 Apr 2025 38th plcc0 0 80 26 Feb 2025 39th Mandrzejy 🇵🇱 0 81 27 Nov 2024 40th emgordon154 0 82 27 Nov 2024 40th 09cf 0 82 18 Apr 2025 40th xiaoyiming123 0 82 3 days ago 40th Bpc-CPU 0 82 3 days ago 44th Natanaelel 🇸🇪 0 85 9 Dec 2024 45th BlankSpruce 0 86 9 Apr 2025 46th Jonatan6 🇩🇰 0 87 30 Jan 2025 47th dokutan 0 88 3 Feb 2025 48th AdrienHache 🇫🇷 0 89 25 Nov 2024 48th Iznoanygod 🇺🇸 0 89 16 Apr 2025 48th RoBoardGod 0 89 15 May 2025 51st TeodorDyakov 🇧🇬 0 90 26 Feb 2025 51st mathb0y512 0 90 19 May 2025 53rd roupiq 🇵🇱 0 92 1 Dec 2024 53rd AlephSquirrel 0 92 18 Apr 2025 53rd SirObby 🇫🇮 0 92 19 days ago 53rd gastropner 0 92 8 days ago 57th retrohun 0 94 1 Apr 2025 58th ndren 0 100 5 Dec 2024 59th Herbert00709 🇵🇱 0 101 27 Nov 2024 59th heanyang1 0 101 1 Jun 2025 61st duckyluuk 🇳🇱 0 106 12 Jan 2025 62nd qpwoeirut 0 108 7 Feb 2025 63rd Jacob385 0 119 25 Feb 2025 64th psethwick 0 120 31 Jan 2025 65th ilovapples 0 122 9 Jun 2025 66th DABANANAMAN120 0 131 18 days ago 67th xyangst 0 142 14 Feb 2025 68th JunkIce 0 143 24 Nov 2024 69th heisenbirb 0 168 6 Jun 2025 70th Stockoh 🇫🇷 0 172 10 Apr 2025 71st VeryHolyCheeeese 🇫🇮 0 181 20 days ago 72nd adamnielson42 🇺🇸 0 200 3 Dec 2024 73rd bigjaaj 0 216 18 Feb 2025 74th Quirkly-Quasar1 🇺🇸 0 276 3 Dec 2024 74th targrik 0 276 14 Feb 2025 1–75 of 80 Next