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 321st Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 321st ovs-code 🇩🇪 0 84 12ms 10 May 2025 321st fuzzylojik-golf 🇺🇸 0 84 444ms 2 days ago 321st KasperKivimaeki 🇫🇮 0 84 12ms 20 hours ago 325th edsrzf 🇳🇿 0 85 42ms 8 May 2025 325th edsrzf 🇳🇿 0 85 18ms 9 May 2025 325th error256 0 85 18ms 10 May 2025 325th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 325th HumanoidCPU 0 85 434ms 11 hours ago 330th Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 330th kg583 🇺🇸 0 86 39ms 16 Feb 2025 330th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 330th GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 330th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 330th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 330th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 330th elgan65536 🇺🇸 0 86 168ms 25 days ago 330th CaedenHarper 🇨🇦 0 86 399ms 4 days ago 330th CaedenHarper 🇨🇦 0 86 153ms 3 days ago 330th edsrzf 🇳🇿 0 86 414ms 34 hours ago 330th emgordon154 0 86 406ms 21 hours ago 330th GolfingSuccess 🇬🇷 0 86 19ms 13 hours ago 343rd Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 343rd Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 343rd albanian-laundromat 0 87 1,424ms 4 days ago 343rd Yax42 🇫🇷 0 87 2,430ms 43 hours ago 347th kg583 🇺🇸 0 88 23ms 12 Feb 2026 347th fuzzylojik-golf 🇺🇸 0 88 152ms 2 days ago 349th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 349th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 349th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 349th CaedenHarper 🇨🇦 0 89 103ms 3 days ago 349th roelderickx 0 89 1,614ms 2 hours ago 354th Yax42 🇫🇷 0 90 13ms 43 hours ago 355th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 356th namelessiw 0 92 504ms 10 Oct 2025 356th fuzzylojik-golf 🇺🇸 0 92 383ms 2 days ago 356th madex 🇩🇪 0 92 12ms 38 hours ago 359th CaedenHarper 🇨🇦 0 93 13ms 4 days ago 360th DialFrost 🇸🇬 0 94 13ms 10 May 2025 360th edsrzf 🇳🇿 0 94 187ms 17 May 2025 360th edsrzf 🇳🇿 0 94 21ms 17 hours ago 363rd Yax42 🇫🇷 0 95 389ms 43 hours ago 364th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 364th HumanoidCPU 0 96 160ms 37 hours ago 366th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 367th snydej 0 99 43ms 22 Nov 2024 367th albanian-laundromat 0 99 343ms 4 days ago 367th dokutan 0 99 409ms 25 hours ago 370th dokutan 0 100 19ms 25 hours ago 371st HumanoidCPU 0 101 361ms 15 hours ago 371st HumanoidCPU 0 101 382ms 12 hours ago 373rd sean-niemann 🇺🇸 0 102 286ms 8 May 2025 373rd Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 373rd edsrzf 🇳🇿 0 102 295ms 9 May 2025 373rd GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 373rd ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 373rd CaedenHarper 🇨🇦 0 102 301ms 4 days ago 373rd fuzzylojik-golf 🇺🇸 0 102 292ms 2 days ago 373rd emgordon154 0 102 274ms 31 hours ago 373rd edsrzf 🇳🇿 0 102 341ms 4 hours ago 382nd lukechampine 0 103 301ms 7 Jun 2025 382nd chris124567 0 103 294ms 8 Jun 2025 382nd albanian-laundromat 0 103 270ms 16 Dec 2025 382nd GolfingSuccess 🇬🇷 0 103 336ms 14 Jan 2026 382nd HumanoidCPU 0 103 329ms 12 hours ago 387th UnderKoen 🇳🇱 0 107 2,121ms 24 hours ago 388th edsrzf 🇳🇿 0 109 21ms 6 hours ago 389th kg583 🇺🇸 0 110 14ms 12 Jan 2026 390th GolfingSuccess 🇬🇷 0 111 107ms 10 hours ago 391st retrohun 0 112 16ms 47 hours ago 391st edsrzf 🇳🇿 0 112 27ms 8 hours ago 393rd edsrzf 🇳🇿 0 114 30ms 18 hours ago 394th prestosilver 🇺🇸 0 115 418ms 46 hours ago 394th HumanoidCPU 0 115 260ms 12 hours ago 396th emgordon154 0 116 66ms 8 hours ago 397th GolfingSuccess 🇬🇷 0 117 34ms 25 Dec 2025 398th HumanoidCPU 0 118 14ms 7 hours ago 399th emgordon154 0 119 56ms 32 hours ago 399th not-a-pokemon 0 119 15ms 21 hours ago First Prev 321–400 of 425 Next Last