The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 7 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 161st lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 161st GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 161st AlephSquirrel 0 62 15ms 25 Nov 2024 161st hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 161st kg583 🇺🇸 0 62 36ms 1 Dec 2024 161st CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 161st ndren 0 62 15ms 3 Dec 2024 161st btnlq 0 62 15ms 4 Dec 2024 161st Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 161st Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 161st ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 161st khvdm 0 62 15ms 12 Jan 2025 161st bricknellj 0 62 16ms 30 Jan 2025 161st DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 161st pardouin 🇫🇷 0 62 14ms 24 Feb 2025 161st error256 0 62 16ms 12 Apr 2025 161st MeWhenI 🇻🇦 0 62 14ms 8 May 2025 161st Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 161st sean-niemann 🇺🇸 0 62 16ms 8 May 2025 161st 4atj 0 62 16ms 9 May 2025 161st emgordon154 0 62 16ms 9 May 2025 161st Natanaelel 🇸🇪 0 62 16ms 11 May 2025 161st dokutan 0 62 14ms 15 Aug 2025 161st hiichbindermax 0 62 18ms 17 Aug 2025 161st 5cw 🇺🇸 0 62 15ms 22 Aug 2025 161st commandz0 🇺🇸 0 62 15ms 27 Aug 2025 161st SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 161st KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 161st albanian-laundromat 0 62 16ms 2 Dec 2025 161st GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 161st Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 161st Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 161st lukegustafson 🇺🇸 0 62 36ms 15 days ago 161st aksyristos 0 62 14ms 12 days ago 161st madex 🇩🇪 0 62 15ms 5 days ago 161st CaedenHarper 🇨🇦 0 62 16ms 3 days ago 161st KatieLG 🇬🇧 0 62 17ms 24 hours ago 161st KatieLG 🇬🇧 0 62 416ms 24 hours ago 161st scpchicken 🇵🇼 0 62 15ms 24 hours ago 161st fuzzylojik-golf 🇺🇸 0 62 15ms 24 hours ago 161st StefanHabel 🇨🇦 0 62 15ms 17 hours ago 161st Seek64 🇩🇪 0 62 15ms 16 hours ago 161st blaztoma 🇱🇹 0 62 15ms 16 hours ago 161st BREMAUCY 🇫🇷 0 62 16ms 14 hours ago 161st Emutis 🇱🇹 0 62 16ms 13 hours ago 161st Andrey2001 0 62 17ms 7 hours ago 161st anter69 🇭🇺 0 62 15ms 3 hours ago 161st HumanoidCPU 0 62 17ms 52 mins ago 209th sean-niemann 🇺🇸 0 63 43ms 8 May 2025 209th albanian-laundromat 0 63 44ms 14 Jan 2026 209th tomh1012 0 63 15ms 11 hours ago 212th jameswmccarty 0 64 15ms 29 Mar 2025 212th albanian-laundromat 0 64 188ms 2 days ago 214th Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 214th rucin93 🇵🇱 0 66 6ms 8 May 2025 214th sean-niemann 🇺🇸 0 66 7ms 8 May 2025 214th AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 214th namelessiw 0 66 434ms 2 Nov 2025 214th GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 214th albanian-laundromat 0 66 1,391ms 2 days ago 214th Yax42 🇫🇷 0 66 484ms 33 hours ago 214th fuzzylojik-golf 🇺🇸 0 66 456ms 22 hours ago 223rd GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 223rd tomh1012 0 67 429ms 11 hours ago 225th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 225th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 225th edsrzf 🇳🇿 0 68 113ms 25 May 2025 225th GolfingSuccess 🇬🇷 0 68 110ms 47 hours ago 229th GolfingSuccess 🇬🇷 0 69 10ms 8 May 2025 229th CaedenHarper 🇨🇦 0 69 486ms 2 days ago 231st JOrE20 0 70 41ms 13 Feb 2026 232nd kg583 🇺🇸 0 71 27ms 1 Dec 2024 232nd CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 232nd GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 232nd edsrzf 🇳🇿 0 71 14ms 8 May 2025 232nd AlephSquirrel 0 71 13ms 9 May 2025 237th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 237th dokutan 0 72 62ms 8 Feb 2026 237th edsrzf 🇳🇿 0 72 7ms 4 hours ago 240th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 First Prev 161–240 of 343 Next Last