The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 6 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 240th CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 240th GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 240th edsrzf 🇳🇿 0 71 14ms 8 May 2025 240th AlephSquirrel 0 71 13ms 9 May 2025 245th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 245th dokutan 0 72 62ms 8 Feb 2026 247th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 248th Shanethegamer 🇺🇸 0 75 99ms 26 Nov 2024 248th sean-niemann 🇺🇸 0 75 103ms 8 May 2025 250th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 250th fuzzylojik-golf 🇺🇸 0 76 104ms 32 hours ago 250th edsrzf 🇳🇿 0 76 131ms 23 hours ago 250th emgordon154 0 76 115ms 4 hours ago 254th rucin93 🇵🇱 0 77 130ms 8 May 2025 254th ovs-code 🇩🇪 0 77 81ms 30 May 2025 254th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 257th saito-ta 🇯🇵 0 78 4ms 10 May 2025 257th rhdqor213 0 78 4ms 10 May 2025 257th albanian-laundromat 0 78 100ms 3 days ago 260th GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 261st sean-niemann 🇺🇸 0 80 455ms 8 May 2025 262nd kumavale 0 81 156ms 26 Nov 2025 262nd Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 262nd albanian-laundromat 0 81 45ms 3 days ago 265th GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 265th emgordon154 0 82 162ms 14 Feb 2026 265th emgordon154 0 82 518ms 6 hours ago 268th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 268th edsrzf 🇳🇿 0 83 414ms 9 Jul 2025 268th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 268th fantaize 0 83 156ms 14 days ago 268th GolfingSuccess 🇬🇷 0 83 33ms 5 hours ago 273rd Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 273rd ovs-code 🇩🇪 0 84 12ms 10 May 2025 273rd fuzzylojik-golf 🇺🇸 0 84 444ms 32 hours ago 273rd MeWhenI 🇻🇦 0 84 215ms 7 hours ago 277th edsrzf 🇳🇿 0 85 42ms 8 May 2025 277th edsrzf 🇳🇿 0 85 18ms 9 May 2025 277th error256 0 85 18ms 10 May 2025 277th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 277th KasperKivimaeki 🇫🇮 0 85 12ms 104 mins ago 282nd Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 282nd kg583 🇺🇸 0 86 39ms 16 Feb 2025 282nd GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 282nd GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 282nd edsrzf 🇳🇿 0 86 155ms 9 May 2025 282nd sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 282nd GolfingSuccess 🇬🇷 0 86 8ms 12 Nov 2025 282nd MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 282nd GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 282nd elgan65536 🇺🇸 0 86 168ms 24 days ago 282nd CaedenHarper 🇨🇦 0 86 399ms 3 days ago 282nd CaedenHarper 🇨🇦 0 86 153ms 2 days ago 282nd edsrzf 🇳🇿 0 86 414ms 5 hours ago 295th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 295th GolfingSuccess 🇬🇷 0 87 18ms 8 May 2025 295th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 295th albanian-laundromat 0 87 1,424ms 3 days ago 295th Yax42 🇫🇷 0 87 2,430ms 14 hours ago 300th GolfingSuccess 🇬🇷 0 88 5ms 12 Nov 2025 300th kg583 🇺🇸 0 88 23ms 12 Feb 2026 300th fuzzylojik-golf 🇺🇸 0 88 152ms 29 hours ago 303rd Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 303rd Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 303rd DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 303rd CaedenHarper 🇨🇦 0 89 103ms 2 days ago 303rd emgordon154 0 89 400ms 6 hours ago 308th Yax42 🇫🇷 0 90 13ms 14 hours ago 309th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 310th namelessiw 0 92 504ms 10 Oct 2025 310th fuzzylojik-golf 🇺🇸 0 92 390ms 30 hours ago 310th madex 🇩🇪 0 92 12ms 9 hours ago 313th CaedenHarper 🇨🇦 0 93 13ms 3 days ago 314th DialFrost 🇸🇬 0 94 13ms 10 May 2025 314th edsrzf 🇳🇿 0 94 187ms 17 May 2025 316th Yax42 🇫🇷 0 95 389ms 14 hours ago 317th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 317th HumanoidCPU 0 96 160ms 8 hours ago 319th Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 320th snydej 0 99 43ms 22 Nov 2024 First Prev 241–320 of 362 Next Last