The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 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 161st DialFrost 🇸🇬 0 52 461ms 17 Feb 2025 161st CaedenHarper 🇨🇦 0 52 530ms 5 days ago 161st HumanoidCPU 0 52 394ms 2 days ago 161st plcc0 0 52 459ms 21 hours ago 165th antimon2 🇯🇵 0 53 288ms 16 Dec 2024 165th Shanethegamer 🇺🇸 0 53 315ms 1 Feb 2025 165th dokutan 0 53 426ms 15 Aug 2025 165th MeWhenI 🇻🇦 0 53 393ms 21 Nov 2025 165th albanian-laundromat 0 53 467ms 15 Jan 2026 165th AlephSquirrel 0 53 383ms 4 days ago 165th DialFrost 🇸🇬 0 53 330ms 32 hours ago 165th ovs-code 🇩🇪 0 53 272ms 13 hours ago 165th Steffan153 🇫🇮 0 53 290ms 7 hours ago 174th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 174th error256 0 54 66ms 12 Apr 2025 174th albanian-laundromat 0 54 779ms 15 Jan 2026 174th GolfingSuccess 🇬🇷 0 54 71ms 4 days ago 174th dokutan 0 54 778ms 2 days ago 174th fuzzylojik-golf 🇺🇸 0 54 81ms 40 hours ago 174th edsrzf 🇳🇿 0 54 70ms 21 hours ago 181st albanian-laundromat 0 55 39ms 5 days ago 182nd Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 182nd GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 182nd sean-niemann 🇺🇸 0 56 67ms 8 May 2025 182nd DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 186th Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 186th sean-niemann 🇺🇸 0 57 176ms 25 May 2025 186th edsrzf 🇳🇿 0 57 167ms 25 May 2025 186th GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 186th Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 186th albanian-laundromat 0 57 296ms 3 days ago 192nd GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 193rd GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 193rd IanUtley 0 59 18ms 8 May 2025 193rd GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 196th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 196th fuzzylojik-golf 🇺🇸 0 60 16ms 3 days ago 196th emgordon154 0 60 3,008ms 2 days ago 196th edsrzf 🇳🇿 0 60 2,595ms 2 days ago 196th fuzzylojik-golf 🇺🇸 0 60 2,673ms 43 hours ago 201st GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 201st madex 🇩🇪 0 61 2,738ms 5 days ago 201st dokutan 0 61 189ms 42 hours ago 204th lifthrasiir 🇰🇷 0 62 37ms 22 Nov 2024 204th GolfingSuccess 🇬🇷 0 62 15ms 25 Nov 2024 204th AlephSquirrel 0 62 15ms 25 Nov 2024 204th hallvabo 🇳🇴 0 62 38ms 26 Nov 2024 204th kg583 🇺🇸 0 62 36ms 1 Dec 2024 204th CornerMercury 🇬🇧 0 62 15ms 3 Dec 2024 204th ndren 0 62 15ms 3 Dec 2024 204th btnlq 0 62 15ms 4 Dec 2024 204th Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 204th Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 204th ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 204th khvdm 0 62 15ms 12 Jan 2025 204th bricknellj 0 62 16ms 30 Jan 2025 204th DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 204th pardouin 🇫🇷 0 62 14ms 24 Feb 2025 204th error256 0 62 16ms 12 Apr 2025 204th MeWhenI 🇻🇦 0 62 14ms 8 May 2025 204th Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 204th sean-niemann 🇺🇸 0 62 16ms 8 May 2025 204th 4atj 0 62 16ms 9 May 2025 204th emgordon154 0 62 16ms 9 May 2025 204th Natanaelel 🇸🇪 0 62 16ms 11 May 2025 204th dokutan 0 62 14ms 15 Aug 2025 204th hiichbindermax 0 62 18ms 17 Aug 2025 204th 5cw 🇺🇸 0 62 15ms 22 Aug 2025 204th commandz0 🇺🇸 0 62 15ms 27 Aug 2025 204th SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 204th KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 204th albanian-laundromat 0 62 16ms 2 Dec 2025 204th Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 204th Steffan153 🇫🇮 0 62 16ms 19 Feb 2026 204th lukegustafson 🇺🇸 0 62 36ms 17 days ago 204th aksyristos 0 62 14ms 15 days ago 204th madex 🇩🇪 0 62 15ms 7 days ago 204th CaedenHarper 🇨🇦 0 62 16ms 5 days ago 204th KatieLG 🇬🇧 0 62 17ms 3 days ago 204th KatieLG 🇬🇧 0 62 416ms 3 days ago First Prev 161–240 of 460 Next Last