The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 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 156th sean-niemann 🇺🇸 0 51 150ms 9 May 2025 156th DialFrost 🇸🇬 0 51 302ms 8 Sep 2025 156th albanian-laundromat 0 51 5ms 2 days ago 156th ovs-code 🇩🇪 0 51 19ms 34 hours ago 156th Steffan153 🇫🇮 0 51 17ms 33 hours ago 156th Steffan153 🇫🇮 0 51 124ms 29 hours ago 167th DialFrost 🇸🇬 0 52 461ms 17 Feb 2025 167th CaedenHarper 🇨🇦 0 52 530ms 6 days ago 167th HumanoidCPU 0 52 394ms 3 days ago 167th plcc0 0 52 459ms 40 hours ago 171st antimon2 🇯🇵 0 53 288ms 16 Dec 2024 171st Shanethegamer 🇺🇸 0 53 315ms 1 Feb 2025 171st dokutan 0 53 426ms 15 Aug 2025 171st MeWhenI 🇻🇦 0 53 360ms 21 Nov 2025 171st albanian-laundromat 0 53 467ms 15 Jan 2026 171st AlephSquirrel 0 53 383ms 5 days ago 171st DialFrost 🇸🇬 0 53 330ms 2 days ago 171st ovs-code 🇩🇪 0 53 272ms 33 hours ago 171st Steffan153 🇫🇮 0 53 290ms 26 hours ago 180th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 180th error256 0 54 66ms 12 Apr 2025 180th albanian-laundromat 0 54 779ms 15 Jan 2026 180th GolfingSuccess 🇬🇷 0 54 71ms 5 days ago 180th dokutan 0 54 778ms 3 days ago 180th fuzzylojik-golf 🇺🇸 0 54 81ms 2 days ago 180th edsrzf 🇳🇿 0 54 70ms 41 hours ago 180th madex 🇩🇪 0 54 10ms 18 hours ago 188th albanian-laundromat 0 55 39ms 5 days ago 189th Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 189th GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 189th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 189th DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 193rd Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 193rd sean-niemann 🇺🇸 0 57 176ms 25 May 2025 193rd edsrzf 🇳🇿 0 57 167ms 25 May 2025 193rd GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 193rd Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 193rd albanian-laundromat 0 57 296ms 4 days ago 193rd MeWhenI 🇻🇦 0 57 161ms 17 hours ago 200th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 201st GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 201st IanUtley 0 59 18ms 8 May 2025 201st GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 201st acollett89 0 59 13ms 9 hours ago 205th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 205th fuzzylojik-golf 🇺🇸 0 60 16ms 4 days ago 205th emgordon154 0 60 3,008ms 2 days ago 205th edsrzf 🇳🇿 0 60 2,595ms 2 days ago 205th fuzzylojik-golf 🇺🇸 0 60 2,673ms 2 days ago 210th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 210th madex 🇩🇪 0 61 2,500ms 6 days ago 210th dokutan 0 61 189ms 2 days ago 213th lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 213th GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 213th AlephSquirrel 0 62 15ms 25 Nov 2024 213th hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 213th kg583 🇺🇸 0 62 36ms 1 Dec 2024 213th CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 213th ndren 0 62 15ms 3 Dec 2024 213th btnlq 0 62 15ms 4 Dec 2024 213th Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 213th Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 213th ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 213th khvdm 0 62 15ms 12 Jan 2025 213th bricknellj 0 62 16ms 30 Jan 2025 213th DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 213th pardouin 🇫🇷 0 62 14ms 24 Feb 2025 213th error256 0 62 16ms 12 Apr 2025 213th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 213th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 213th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 213th 4atj 0 62 16ms 9 May 2025 213th emgordon154 0 62 16ms 9 May 2025 213th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 213th dokutan 0 62 14ms 15 Aug 2025 213th hiichbindermax 0 62 18ms 17 Aug 2025 213th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 213th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 213th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 213th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 First Prev 161–240 of 484 Next Last