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?
Gray Code Encoder 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 155th DialFrost 🇸🇬 0 53 330ms 19 hours ago 155th ovs-code 🇩🇪 0 53 272ms 38 mins ago 163rd Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 163rd error256 0 54 66ms 12 Apr 2025 163rd albanian-laundromat 0 54 779ms 15 Jan 2026 163rd GolfingSuccess 🇬🇷 0 54 71ms 3 days ago 163rd dokutan 0 54 778ms 46 hours ago 163rd fuzzylojik-golf 🇺🇸 0 54 81ms 27 hours ago 163rd edsrzf 🇳🇿 0 54 70ms 8 hours ago 170th albanian-laundromat 0 55 39ms 4 days ago 171st Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 171st GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 171st sean-niemann 🇺🇸 0 56 67ms 8 May 2025 171st DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 175th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 175th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 175th edsrzf 🇳🇿 0 57 167ms 25 May 2025 175th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 175th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 175th albanian-laundromat 0 57 296ms 3 days ago 181st GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 182nd GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 182nd IanUtley 0 59 18ms 8 May 2025 182nd GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 185th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 185th fuzzylojik-golf 🇺🇸 0 60 16ms 2 days ago 185th emgordon154 0 60 3,008ms 38 hours ago 185th edsrzf 🇳🇿 0 60 2,595ms 36 hours ago 185th fuzzylojik-golf 🇺🇸 0 60 2,673ms 30 hours ago 190th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 190th madex 🇩🇪 0 61 2,738ms 5 days ago 190th dokutan 0 61 189ms 29 hours ago 193rd lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 193rd GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 193rd AlephSquirrel 0 62 15ms 25 Nov 2024 193rd hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 193rd kg583 🇺🇸 0 62 36ms 1 Dec 2024 193rd CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 193rd ndren 0 62 15ms 3 Dec 2024 193rd btnlq 0 62 15ms 4 Dec 2024 193rd Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 193rd Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 193rd ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 193rd khvdm 0 62 15ms 12 Jan 2025 193rd bricknellj 0 62 16ms 30 Jan 2025 193rd DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 193rd pardouin 🇫🇷 0 62 14ms 24 Feb 2025 193rd error256 0 62 16ms 12 Apr 2025 193rd MeWhenI 🇻🇦 0 62 14ms 8 May 2025 193rd Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 193rd sean-niemann 🇺🇸 0 62 16ms 8 May 2025 193rd 4atj 0 62 16ms 9 May 2025 193rd emgordon154 0 62 16ms 9 May 2025 193rd Natanaelel 🇸🇪 0 62 16ms 11 May 2025 193rd dokutan 0 62 14ms 15 Aug 2025 193rd hiichbindermax 0 62 18ms 17 Aug 2025 193rd 5cw 🇺🇸 0 62 15ms 22 Aug 2025 193rd commandz0 🇺🇸 0 62 15ms 27 Aug 2025 193rd SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 193rd KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 193rd albanian-laundromat 0 62 16ms 2 Dec 2025 193rd GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 193rd Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 193rd Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 193rd lukegustafson 🇺🇸 0 62 36ms 17 days ago 193rd aksyristos 0 62 14ms 14 days ago 193rd madex 🇩🇪 0 62 15ms 6 days ago 193rd CaedenHarper 🇨🇦 0 62 16ms 4 days ago 193rd KatieLG 🇬🇧 0 62 17ms 2 days ago 193rd KatieLG 🇬🇧 0 62 416ms 2 days ago 193rd scpchicken 🇵🇼 0 62 15ms 2 days ago 193rd fuzzylojik-golf 🇺🇸 0 62 15ms 2 days ago 193rd StefanHabel 🇨🇦 0 62 15ms 2 days ago 193rd Seek64 🇩🇪 0 62 15ms 2 days ago 193rd blaztoma 🇱🇹 0 62 15ms 2 days ago 193rd BREMAUCY 🇫🇷 0 62 16ms 2 days ago 193rd Emutis 🇱🇹 0 62 16ms 2 days ago 193rd Andrey2001 0 62 16ms 2 days ago 193rd anter69 🇭🇺 0 62 15ms 45 hours ago 193rd HumanoidCPU 0 62 16ms 42 hours ago First Prev 161–240 of 439 Next Last