The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 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 153rd ovs-code 🇩🇪 0 51 19ms 25 hours ago 153rd Steffan153 🇫🇮 0 51 17ms 25 hours ago 153rd Steffan153 🇫🇮 0 51 124ms 21 hours ago 164th DialFrost 🇸🇬 0 52 461ms 17 Feb 2025 164th CaedenHarper 🇨🇦 0 52 530ms 5 days ago 164th HumanoidCPU 0 52 394ms 2 days ago 164th plcc0 0 52 459ms 32 hours ago 168th antimon2 🇯🇵 0 53 288ms 16 Dec 2024 168th Shanethegamer 🇺🇸 0 53 315ms 1 Feb 2025 168th dokutan 0 53 426ms 15 Aug 2025 168th MeWhenI 🇻🇦 0 53 360ms 21 Nov 2025 168th albanian-laundromat 0 53 467ms 15 Jan 2026 168th AlephSquirrel 0 53 383ms 4 days ago 168th DialFrost 🇸🇬 0 53 330ms 43 hours ago 168th ovs-code 🇩🇪 0 53 272ms 25 hours ago 168th Steffan153 🇫🇮 0 53 290ms 18 hours ago 177th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 177th error256 0 54 66ms 12 Apr 2025 177th albanian-laundromat 0 54 779ms 15 Jan 2026 177th GolfingSuccess 🇬🇷 0 54 71ms 4 days ago 177th dokutan 0 54 778ms 2 days ago 177th fuzzylojik-golf 🇺🇸 0 54 81ms 2 days ago 177th edsrzf 🇳🇿 0 54 70ms 32 hours ago 177th madex 🇩🇪 0 54 10ms 10 hours ago 185th albanian-laundromat 0 55 39ms 5 days ago 186th Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 186th GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 186th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 186th DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 190th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 190th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 190th edsrzf 🇳🇿 0 57 167ms 25 May 2025 190th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 190th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 190th albanian-laundromat 0 57 296ms 4 days ago 190th MeWhenI 🇻🇦 0 57 161ms 8 hours ago 197th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 198th GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 198th IanUtley 0 59 18ms 8 May 2025 198th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 198th acollett89 0 59 13ms 80 mins ago 202nd pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 202nd fuzzylojik-golf 🇺🇸 0 60 16ms 3 days ago 202nd emgordon154 0 60 3,008ms 2 days ago 202nd edsrzf 🇳🇿 0 60 2,595ms 2 days ago 202nd fuzzylojik-golf 🇺🇸 0 60 2,673ms 2 days ago 207th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 207th madex 🇩🇪 0 61 2,500ms 6 days ago 207th dokutan 0 61 189ms 2 days ago 210th lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 210th GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 210th AlephSquirrel 0 62 15ms 25 Nov 2024 210th hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 210th kg583 🇺🇸 0 62 36ms 1 Dec 2024 210th CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 210th ndren 0 62 15ms 3 Dec 2024 210th btnlq 0 62 15ms 4 Dec 2024 210th Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 210th Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 210th ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 210th khvdm 0 62 15ms 12 Jan 2025 210th bricknellj 0 62 16ms 30 Jan 2025 210th DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 210th pardouin 🇫🇷 0 62 14ms 24 Feb 2025 210th error256 0 62 16ms 12 Apr 2025 210th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 210th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 210th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 210th 4atj 0 62 16ms 9 May 2025 210th emgordon154 0 62 16ms 9 May 2025 210th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 210th dokutan 0 62 14ms 15 Aug 2025 210th hiichbindermax 0 62 18ms 17 Aug 2025 210th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 210th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 210th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 210th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 210th albanian-laundromat 0 62 16ms 2 Dec 2025 210th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 210th Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 First Prev 161–240 of 481 Next Last