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 158th MeWhenI 🇻🇦 0 53 393ms 21 Nov 2025 158th albanian-laundromat 0 53 467ms 15 Jan 2026 158th AlephSquirrel 0 53 383ms 4 days ago 158th DialFrost 🇸🇬 0 53 330ms 24 hours ago 158th ovs-code 🇩🇪 0 53 272ms 5 hours ago 166th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 166th error256 0 54 66ms 12 Apr 2025 166th albanian-laundromat 0 54 779ms 15 Jan 2026 166th GolfingSuccess 🇬🇷 0 54 71ms 3 days ago 166th dokutan 0 54 778ms 2 days ago 166th fuzzylojik-golf 🇺🇸 0 54 81ms 32 hours ago 166th edsrzf 🇳🇿 0 54 70ms 13 hours ago 173rd albanian-laundromat 0 55 39ms 4 days ago 174th Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 174th GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 174th sean-niemann 🇺🇸 0 56 67ms 8 May 2025 174th DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 178th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 178th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 178th edsrzf 🇳🇿 0 57 167ms 25 May 2025 178th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 178th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 178th albanian-laundromat 0 57 296ms 3 days ago 184th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 185th GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 185th IanUtley 0 59 18ms 8 May 2025 185th GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 188th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 188th fuzzylojik-golf 🇺🇸 0 60 16ms 2 days ago 188th emgordon154 0 60 3,008ms 44 hours ago 188th edsrzf 🇳🇿 0 60 2,595ms 42 hours ago 188th fuzzylojik-golf 🇺🇸 0 60 2,673ms 35 hours ago 193rd GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 193rd madex 🇩🇪 0 61 2,738ms 5 days ago 193rd dokutan 0 61 189ms 34 hours ago 196th lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 196th GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 196th AlephSquirrel 0 62 15ms 25 Nov 2024 196th hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 196th kg583 🇺🇸 0 62 36ms 1 Dec 2024 196th CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 196th ndren 0 62 15ms 3 Dec 2024 196th btnlq 0 62 15ms 4 Dec 2024 196th Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 196th Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 196th ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 196th khvdm 0 62 15ms 12 Jan 2025 196th bricknellj 0 62 16ms 30 Jan 2025 196th DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 196th pardouin 🇫🇷 0 62 14ms 24 Feb 2025 196th error256 0 62 16ms 12 Apr 2025 196th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 196th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 196th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 196th 4atj 0 62 16ms 9 May 2025 196th emgordon154 0 62 16ms 9 May 2025 196th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 196th dokutan 0 62 14ms 15 Aug 2025 196th hiichbindermax 0 62 18ms 17 Aug 2025 196th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 196th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 196th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 196th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 196th albanian-laundromat 0 62 16ms 2 Dec 2025 196th GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 196th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 196th Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 196th lukegustafson 🇺🇸 0 62 36ms 17 days ago 196th aksyristos 0 62 14ms 14 days ago 196th madex 🇩🇪 0 62 15ms 7 days ago 196th CaedenHarper 🇨🇦 0 62 16ms 5 days ago 196th KatieLG 🇬🇧 0 62 17ms 2 days ago 196th KatieLG 🇬🇧 0 62 416ms 2 days ago 196th scpchicken 🇵🇼 0 62 15ms 2 days ago 196th fuzzylojik-golf 🇺🇸 0 62 15ms 2 days ago 196th StefanHabel 🇨🇦 0 62 15ms 2 days ago 196th Seek64 🇩🇪 0 62 15ms 2 days ago 196th blaztoma 🇱🇹 0 62 15ms 2 days ago 196th BREMAUCY 🇫🇷 0 62 16ms 2 days ago 196th Emutis 🇱🇹 0 62 16ms 2 days ago First Prev 161–240 of 448 Next Last