The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 44 hours. Why not try and solve them ahead of time?
Gray Code Encoder in all languages in chars. 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 Chars Time Submitted 236th bricknellj 0 62 16ms 30 Jan 2025 236th error256 0 62 16ms 12 Apr 2025 236th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 236th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 236th 4atj 0 62 16ms 9 May 2025 236th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 236th hiichbindermax 0 62 16ms 17 Aug 2025 236th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 236th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 236th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 236th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 236th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 236th lukegustafson 🇺🇸 0 62 36ms 20 days ago 236th aksyristos 0 62 14ms 18 days ago 236th madex 🇩🇪 0 62 15ms 10 days ago 236th CaedenHarper 🇨🇦 0 62 16ms 8 days ago 236th KatieLG 🇬🇧 0 62 16ms 6 days ago 236th KatieLG 🇬🇧 0 62 416ms 6 days ago 236th scpchicken 🇵🇼 0 62 15ms 6 days ago 236th StefanHabel 🇨🇦 0 62 15ms 5 days ago 236th blaztoma 🇱🇹 0 62 15ms 5 days ago 236th Emutis 🇱🇹 0 62 16ms 5 days ago 236th Andrey2001 0 62 16ms 5 days ago 236th anter69 🇭🇺 0 62 15ms 5 days ago 236th qpwoeirut 0 62 17ms 4 days ago 236th stefangimmillaro 0 62 16ms 4 days ago 236th btjones0 0 62 15ms 4 days ago 236th bzijlema 🇳🇱 0 62 16ms 4 days ago 236th ahmetdemirag 🇨🇾 0 62 15ms 4 days ago 236th Pyroan 0 62 19ms 4 days ago 236th edsrzf 🇳🇿 0 62 15ms 4 days ago 236th zacjl 0 62 17ms 3 days ago 236th MeWhenI 🇻🇦 0 62 86ms 3 days ago 236th ComradeSquirrel 0 62 14ms 3 days ago 236th duckyluuk 🇳🇱 0 62 15ms 3 days ago 236th Aquateraneal 🇺🇸 0 62 15ms 3 days ago 236th madex 🇩🇪 0 62 439ms 2 days ago 236th madex 🇩🇪 0 62 1,125ms 2 days ago 236th luuumine 🇫🇷 0 62 19ms 2 days ago 236th solisolu 0 62 15ms 30 hours ago 236th LostSyntax21 🇬🇧 0 62 16ms 14 hours ago 282nd sean-niemann 🇺🇸 0 63 43ms 8 May 2025 282nd albanian-laundromat 0 63 44ms 14 Jan 2026 282nd tomh1012 0 63 15ms 5 days ago 282nd mishak-sys 0 63 15ms 3 days ago 286th jameswmccarty 0 64 15ms 29 Mar 2025 286th dokutan 0 64 63ms 8 Feb 2026 286th albanian-laundromat 0 64 188ms 8 days ago 286th zgialor-lab 0 64 16ms 4 days ago 290th JDiLenarda 🇫🇷 0 65 1,347ms 4 days ago 291st Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 291st rucin93 🇵🇱 0 66 6ms 8 May 2025 291st sean-niemann 🇺🇸 0 66 7ms 8 May 2025 291st AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 291st namelessiw 0 66 474ms 2 Nov 2025 291st GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 291st albanian-laundromat 0 66 1,345ms 7 days ago 291st Yax42 🇫🇷 0 66 461ms 6 days ago 291st fuzzylojik-golf 🇺🇸 0 66 456ms 6 days ago 291st edsrzf 🇳🇿 0 66 7ms 4 days ago 291st edsrzf 🇳🇿 0 66 1,345ms 4 days ago 291st edsrzf 🇳🇿 0 66 451ms 3 days ago 291st Steffan153 🇫🇮 0 66 480ms 3 days ago 291st Steffan153 🇫🇮 0 66 7ms 3 days ago 291st AstroOrbis 0 66 15ms 11 hours ago 306th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 306th tomh1012 0 67 429ms 5 days ago 306th msbranicky 0 67 16ms 2 days ago 309th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 309th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 309th edsrzf 🇳🇿 0 68 113ms 25 May 2025 309th GolfingSuccess 🇬🇷 0 68 110ms 7 days ago 309th fuzzylojik-golf 🇺🇸 0 68 1,320ms 4 days ago 309th Steffan153 🇫🇮 0 68 104ms 3 days ago 315th GolfingSuccess 🇬🇷 0 69 10ms 8 May 2025 315th CaedenHarper 🇨🇦 0 69 486ms 7 days ago 315th MeWhenI 🇻🇦 0 69 454ms 2 days ago 318th JOrE20 0 70 41ms 13 Feb 2026 319th kg583 🇺🇸 0 71 27ms 1 Dec 2024 319th CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 First Prev 241–320 of 504 Next Last