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 155th edsrzf 🇳🇿 0 54 70ms 2 hours ago 162nd albanian-laundromat 0 55 39ms 4 days ago 163rd Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 163rd GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 163rd sean-niemann 🇺🇸 0 56 67ms 8 May 2025 163rd DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 167th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 167th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 167th edsrzf 🇳🇿 0 57 167ms 25 May 2025 167th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 167th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 167th albanian-laundromat 0 57 296ms 2 days ago 173rd GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 174th GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 174th IanUtley 0 59 18ms 8 May 2025 174th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 177th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 177th fuzzylojik-golf 🇺🇸 0 60 16ms 2 days ago 177th emgordon154 0 60 3,008ms 33 hours ago 177th edsrzf 🇳🇿 0 60 2,595ms 31 hours ago 177th fuzzylojik-golf 🇺🇸 0 60 2,673ms 25 hours ago 182nd GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 182nd madex 🇩🇪 0 61 2,738ms 5 days ago 182nd dokutan 0 61 189ms 23 hours ago 185th lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 185th GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 185th AlephSquirrel 0 62 15ms 25 Nov 2024 185th hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 185th kg583 🇺🇸 0 62 36ms 1 Dec 2024 185th CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 185th ndren 0 62 15ms 3 Dec 2024 185th btnlq 0 62 15ms 4 Dec 2024 185th Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 185th Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 185th ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 185th khvdm 0 62 15ms 12 Jan 2025 185th bricknellj 0 62 16ms 30 Jan 2025 185th DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 185th pardouin 🇫🇷 0 62 14ms 24 Feb 2025 185th error256 0 62 16ms 12 Apr 2025 185th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 185th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 185th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 185th 4atj 0 62 16ms 9 May 2025 185th emgordon154 0 62 16ms 9 May 2025 185th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 185th dokutan 0 62 14ms 15 Aug 2025 185th hiichbindermax 0 62 18ms 17 Aug 2025 185th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 185th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 185th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 185th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 185th albanian-laundromat 0 62 16ms 2 Dec 2025 185th GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 185th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 185th Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 185th lukegustafson 🇺🇸 0 62 36ms 17 days ago 185th aksyristos 0 62 14ms 14 days ago 185th madex 🇩🇪 0 62 15ms 6 days ago 185th CaedenHarper 🇨🇦 0 62 16ms 4 days ago 185th KatieLG 🇬🇧 0 62 17ms 2 days ago 185th KatieLG 🇬🇧 0 62 416ms 2 days ago 185th scpchicken 🇵🇼 0 62 15ms 2 days ago 185th fuzzylojik-golf 🇺🇸 0 62 15ms 2 days ago 185th StefanHabel 🇨🇦 0 62 15ms 2 days ago 185th Seek64 🇩🇪 0 62 15ms 2 days ago 185th blaztoma 🇱🇹 0 62 15ms 2 days ago 185th BREMAUCY 🇫🇷 0 62 16ms 2 days ago 185th Emutis 🇱🇹 0 62 16ms 2 days ago 185th Andrey2001 0 62 16ms 44 hours ago 185th anter69 🇭🇺 0 62 15ms 40 hours ago 185th HumanoidCPU 0 62 16ms 37 hours ago 185th qpwoeirut 0 62 17ms 32 hours ago 185th stefangimmillaro 0 62 16ms 31 hours ago 185th btjones0 0 62 15ms 29 hours ago 185th bzijlema 🇳🇱 0 62 16ms 26 hours ago 185th ahmetdemirag 🇨🇾 0 62 15ms 23 hours ago 185th plcc0 0 62 15ms 23 hours ago 185th Pyroan 0 62 19ms 16 hours ago 185th edsrzf 🇳🇿 0 62 15ms 15 hours ago First Prev 161–240 of 422 Next Last