The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 18 hours. Why not try and solve them ahead of time?
Gray Code Encoder in all languages in chars. 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 Chars Time Submitted 160th Shanethegamer 🇺🇸 0 50 315ms 1 Feb 2025 160th ovs-code 🇩🇪 0 50 448ms 23 Feb 2025 160th CaedenHarper 🇨🇦 0 50 883ms 9 days ago 160th Steffan153 🇫🇮 0 50 956ms 9 days ago 160th edsrzf 🇳🇿 0 50 943ms 9 days ago 160th GolfingSuccess 🇬🇷 0 50 1,020ms 8 days ago 160th DialFrost 🇸🇬 0 50 289ms 5 days ago 160th ovs-code 🇩🇪 0 50 272ms 4 days ago 160th Steffan153 🇫🇮 0 50 290ms 4 days ago 170th Shanethegamer 🇺🇸 0 51 5ms 30 Apr 2025 170th GolfingSuccess 🇬🇷 0 51 157ms 8 May 2025 170th rucin93 🇵🇱 0 51 159ms 8 May 2025 170th Shanethegamer 🇺🇸 0 51 150ms 8 May 2025 170th sean-niemann 🇺🇸 0 51 150ms 9 May 2025 170th DialFrost 🇸🇬 0 51 294ms 8 Sep 2025 170th HumanoidCPU 0 51 394ms 6 days ago 170th albanian-laundromat 0 51 5ms 6 days ago 170th ovs-code 🇩🇪 0 51 19ms 4 days ago 170th Steffan153 🇫🇮 0 51 17ms 4 days ago 170th Steffan153 🇫🇮 0 51 124ms 4 days ago 181st DialFrost 🇸🇬 0 52 424ms 17 Feb 2025 181st CaedenHarper 🇨🇦 0 52 472ms 9 days ago 181st HumanoidCPU 0 52 8ms 20 hours ago 184th dokutan 0 53 426ms 15 Aug 2025 184th MeWhenI 🇻🇦 0 53 360ms 21 Nov 2025 184th albanian-laundromat 0 53 467ms 15 Jan 2026 184th AlephSquirrel 0 53 383ms 8 days ago 188th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 188th error256 0 54 66ms 12 Apr 2025 188th albanian-laundromat 0 54 900ms 15 Jan 2026 188th GolfingSuccess 🇬🇷 0 54 71ms 8 days ago 188th dokutan 0 54 977ms 6 days ago 188th fuzzylojik-golf 🇺🇸 0 54 68ms 5 days ago 188th edsrzf 🇳🇿 0 54 70ms 4 days ago 188th madex 🇩🇪 0 54 10ms 3 days ago 196th albanian-laundromat 0 55 39ms 9 days ago 197th hallvabo 🇳🇴 0 56 15ms 29 Nov 2024 197th kg583 🇺🇸 0 56 16ms 1 Dec 2024 197th CornerMercury 🇬🇧 0 56 15ms 3 Dec 2024 197th ndren 0 56 16ms 3 Dec 2024 197th lifthrasiir 🇰🇷 0 56 37ms 11 Dec 2024 197th GolfingSuccess 🇬🇷 0 56 16ms 30 Dec 2024 197th khvdm 0 56 15ms 12 Jan 2025 197th pardouin 🇫🇷 0 56 16ms 24 Feb 2025 197th Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 197th GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 197th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 197th sean-niemann 🇺🇸 0 56 16ms 8 May 2025 197th emgordon154 0 56 16ms 9 May 2025 197th dokutan 0 56 16ms 18 Aug 2025 197th albanian-laundromat 0 56 16ms 2 Dec 2025 197th DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 197th Steffan153 🇫🇮 0 56 16ms 21 Feb 2026 197th fuzzylojik-golf 🇺🇸 0 56 17ms 7 days ago 197th Seek64 🇩🇪 0 56 16ms 6 days ago 197th BREMAUCY 🇫🇷 0 56 16ms 6 days ago 197th HumanoidCPU 0 56 15ms 6 days ago 197th plcc0 0 56 17ms 5 days ago 197th DialFrost 🇸🇬 0 56 15ms 38 hours ago 220th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 220th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 220th edsrzf 🇳🇿 0 57 167ms 25 May 2025 220th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 220th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 220th albanian-laundromat 0 57 296ms 7 days ago 220th MeWhenI 🇻🇦 0 57 161ms 3 days ago 227th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 227th dokutan 0 58 176ms 5 days ago 229th GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 229th IanUtley 0 59 18ms 8 May 2025 229th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 229th HumanoidCPU 0 59 255ms 19 hours ago 233rd pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 233rd fuzzylojik-golf 🇺🇸 0 60 16ms 7 days ago 233rd emgordon154 0 60 2,620ms 6 days ago 233rd edsrzf 🇳🇿 0 60 2,595ms 6 days ago 233rd fuzzylojik-golf 🇺🇸 0 60 2,673ms 5 days ago 238th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 238th madex 🇩🇪 0 61 2,421ms 9 days ago 240th AlephSquirrel 0 62 15ms 25 Nov 2024 First Prev 161–240 of 513 Next Last