The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 days. Why not try and solve them ahead of time?
Continued Fractions 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 78th Just4FunCoder 924 126 10ms 16 days ago 82nd error256 919 72 39ms 27 days ago 83rd ovs-code 🇩🇪 917 52 45ms 20 Nov 2025 83rd GolfingSuccess 🇬🇷 917 52 41ms 21 Nov 2025 85th Steffan153 🇫🇮 917 105 467ms 3 days ago 85th JayXon 🇺🇸 917 105 448ms 3 days ago 87th hiichbindermax 917 127 9ms 27 days ago 87th Matter1024 🇮🇳 917 127 10ms 17 days ago 87th madex 🇩🇪 917 127 10ms 15 days ago 90th Lv0Sys 🇵🇱 915 96 12ms 26 days ago 91st canissimia 🇦🇶 913 77 3ms 10 days ago 92nd rhdqor213 907 112 2ms 22 days ago 92nd KasperKivimaeki 🇫🇮 907 112 2ms 22 days ago 94th LostSyntax21 🇬🇧 906 73 38ms 26 days ago 94th npc1234cyber 906 73 37ms 24 days ago 96th saito-ta 🇯🇵 904 81 3ms 27 days ago 97th 2bular 903 58 2ms 20 Nov 2025 98th SirBogman 🇺🇸 902 129 10ms 4 mins ago 99th ovs-code 🇩🇪 901 79 31ms 20 Nov 2025 100th Steffan153 🇫🇮 900 97 1,290ms 25 days ago 101st MeWhenI 🇻🇦 899 53 46ms 21 days ago 102nd saito-ta 🇯🇵 895 78 17ms 25 days ago 103rd FortuiteMan 🇫🇷 894 47 6ms 13 days ago 104th albanian-laundromat 894 73 4ms 24 days ago 105th lyphyser 894 79 52ms 2 Dec 2025 106th edsrzf 🇳🇿 893 95 788ms 22 days ago 107th antimon2 🇯🇵 892 91 433ms 26 days ago 108th sean-niemann 🇺🇸 890 79 2ms 16 days ago 109th msbranicky 889 131 10ms 25 days ago 109th Andrey2001 889 131 10ms 13 days ago 111th zacjl 888 59 3ms 27 days ago 112th JayXon 🇺🇸 888 96 161ms 23 days ago 113th weliveinhell 🇭🇹 887 99 11ms 24 days ago 114th AdrienHache 🇫🇷 886 134 464ms 27 days ago 115th GolfingSuccess 🇬🇷 884 109 445ms 27 days ago 116th edsrzf 🇳🇿 884 115 11ms 23 days ago 116th Steffan153 🇫🇮 884 115 11ms 23 days ago 118th Steffan153 🇫🇮 882 117 2ms 24 days ago 118th edsrzf 🇳🇿 882 117 2ms 24 days ago 118th GolfingSuccess 🇬🇷 882 117 2ms 5 days ago 121st anter69 🇭🇺 881 99 1,252ms 4 Feb 2026 121st pardouin 🇫🇷 881 99 1,303ms 15 Feb 2026 121st stefangimmillaro 881 99 1,320ms 21 Feb 2026 121st edsrzf 🇳🇿 881 99 1,238ms 26 days ago 121st emgordon154 881 99 1,153ms 25 days ago 126th KasperKivimaeki 🇫🇮 880 139 424ms 19 Nov 2025 127th namelessiw 879 135 489ms 25 days ago 128th albanian-laundromat 878 100 10ms 26 days ago 128th Maznek 878 100 10ms 24 days ago 130th Steffan153 🇫🇮 876 163 409ms 21 days ago 131st ovs-code 🇩🇪 875 110 422ms 21 Nov 2025 131st AlephSquirrel 875 110 433ms 31 Jan 2026 131st fuzzylojik-golf 🇺🇸 875 110 406ms 5 days ago 134th pardouin 🇫🇷 875 167 283ms 26 days ago 134th edsrzf 🇳🇿 875 167 287ms 25 days ago 134th Steffan153 🇫🇮 875 167 289ms 23 days ago 134th GolfingSuccess 🇬🇷 875 167 286ms 5 days ago 138th targrik 872 106 6ms 6 days ago 139th edsrzf 🇳🇿 872 128 2,783ms 22 days ago 140th sean-niemann 🇺🇸 871 164 378ms 16 days ago 141st Lv0Sys 🇵🇱 870 76 35ms 26 days ago 142nd KasperKivimaeki 🇫🇮 870 168 301ms 23 days ago 143rd pardouin 🇫🇷 869 101 10ms 25 days ago 144th sean-niemann 🇺🇸 868 111 434ms 16 Jan 2026 144th CaedenHarper 🇨🇦 868 111 400ms 26 Feb 2026 146th rucin93 🇵🇱 867 114 2ms 1 Jan 2026 146th GolfingSuccess 🇬🇷 867 114 2ms 27 days ago 146th edsrzf 🇳🇿 867 114 2ms 25 days ago 149th MeWhenI 🇻🇦 866 165 347ms 21 days ago 150th ovs-code 🇩🇪 865 104 8ms 26 days ago 151st pardouin 🇫🇷 865 129 2,711ms 22 days ago 152nd Steffan153 🇫🇮 863 120 120ms 25 days ago 153rd bitsandbeyond 🇳🇱 862 94 394ms 10 Feb 2026 154th andrewjc2000 862 135 11ms 16 days ago 155th Mukundan314 861 118 2ms 19 Nov 2025 156th albanian-laundromat 860 112 430ms 19 Nov 2025 157th error256 860 124 13ms 2 days ago 158th ovs-code 🇩🇪 858 113 90ms 21 Nov 2025 159th Steffan153 🇫🇮 858 128 5ms 24 days ago 159th edsrzf 🇳🇿 858 128 5ms 24 days ago First Prev 81–160 of 375 Next Last