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 159th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 159th DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 163rd Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 163rd sean-niemann 🇺🇸 0 57 176ms 25 May 2025 163rd edsrzf 🇳🇿 0 57 167ms 25 May 2025 163rd GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 163rd Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 163rd albanian-laundromat 0 57 296ms 2 days ago 169th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 170th GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 170th IanUtley 0 59 18ms 8 May 2025 170th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 173rd pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 173rd fuzzylojik-golf 🇺🇸 0 60 16ms 2 days ago 173rd emgordon154 0 60 3,008ms 26 hours ago 173rd edsrzf 🇳🇿 0 60 2,595ms 24 hours ago 173rd fuzzylojik-golf 🇺🇸 0 60 2,673ms 18 hours ago 178th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 178th madex 🇩🇪 0 61 2,738ms 4 days ago 178th dokutan 0 61 189ms 16 hours ago 181st lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 181st GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 181st AlephSquirrel 0 62 15ms 25 Nov 2024 181st hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 181st kg583 🇺🇸 0 62 36ms 1 Dec 2024 181st CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 181st ndren 0 62 15ms 3 Dec 2024 181st btnlq 0 62 15ms 4 Dec 2024 181st Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 181st Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 181st ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 181st khvdm 0 62 15ms 12 Jan 2025 181st bricknellj 0 62 16ms 30 Jan 2025 181st DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 181st pardouin 🇫🇷 0 62 14ms 24 Feb 2025 181st error256 0 62 16ms 12 Apr 2025 181st MeWhenI 🇻🇦 0 62 14ms 8 May 2025 181st Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 181st sean-niemann 🇺🇸 0 62 16ms 8 May 2025 181st 4atj 0 62 16ms 9 May 2025 181st emgordon154 0 62 16ms 9 May 2025 181st Natanaelel 🇸🇪 0 62 16ms 11 May 2025 181st dokutan 0 62 14ms 15 Aug 2025 181st hiichbindermax 0 62 18ms 17 Aug 2025 181st 5cw 🇺🇸 0 62 15ms 22 Aug 2025 181st commandz0 🇺🇸 0 62 15ms 27 Aug 2025 181st SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 181st KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 181st albanian-laundromat 0 62 16ms 2 Dec 2025 181st GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 181st Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 181st Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 181st lukegustafson 🇺🇸 0 62 36ms 16 days ago 181st aksyristos 0 62 14ms 14 days ago 181st madex 🇩🇪 0 62 15ms 6 days ago 181st CaedenHarper 🇨🇦 0 62 16ms 4 days ago 181st KatieLG 🇬🇧 0 62 17ms 2 days ago 181st KatieLG 🇬🇧 0 62 416ms 2 days ago 181st scpchicken 🇵🇼 0 62 15ms 2 days ago 181st fuzzylojik-golf 🇺🇸 0 62 15ms 2 days ago 181st StefanHabel 🇨🇦 0 62 15ms 47 hours ago 181st Seek64 🇩🇪 0 62 15ms 46 hours ago 181st blaztoma 🇱🇹 0 62 15ms 45 hours ago 181st BREMAUCY 🇫🇷 0 62 16ms 43 hours ago 181st Emutis 🇱🇹 0 62 16ms 43 hours ago 181st Andrey2001 0 62 16ms 37 hours ago 181st anter69 🇭🇺 0 62 15ms 33 hours ago 181st HumanoidCPU 0 62 16ms 30 hours ago 181st qpwoeirut 0 62 17ms 25 hours ago 181st stefangimmillaro 0 62 16ms 24 hours ago 181st btjones0 0 62 15ms 22 hours ago 181st bzijlema 🇳🇱 0 62 16ms 19 hours ago 181st ahmetdemirag 🇨🇾 0 62 15ms 16 hours ago 181st plcc0 0 62 15ms 16 hours ago 181st Pyroan 0 62 19ms 9 hours ago 181st edsrzf 🇳🇿 0 62 15ms 8 hours ago 181st zacjl 0 62 17ms 80 mins ago 181st MeWhenI 🇻🇦 0 62 86ms 10 mins ago 239th sean-niemann 🇺🇸 0 63 43ms 8 May 2025 239th albanian-laundromat 0 63 44ms 14 Jan 2026 First Prev 161–240 of 413 Next Last
