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 185th zacjl 0 62 17ms 8 hours ago 185th MeWhenI 🇻🇦 0 62 86ms 7 hours ago 185th ComradeSquirrel 0 62 14ms 5 hours ago 244th sean-niemann 🇺🇸 0 63 43ms 8 May 2025 244th albanian-laundromat 0 63 44ms 14 Jan 2026 244th tomh1012 0 63 15ms 2 days ago 244th MeWhenI 🇻🇦 0 63 204ms 16 hours ago 248th jameswmccarty 0 64 15ms 29 Mar 2025 248th albanian-laundromat 0 64 188ms 4 days ago 248th zgialor-lab 0 64 16ms 18 hours ago 251st JDiLenarda 🇫🇷 0 65 1,347ms 21 hours ago 252nd Shanethegamer 🇺🇸 0 66 1,317ms 26 Nov 2024 252nd rucin93 🇵🇱 0 66 6ms 8 May 2025 252nd sean-niemann 🇺🇸 0 66 7ms 8 May 2025 252nd AdrienHache 🇫🇷 0 66 421ms 2 Nov 2025 252nd namelessiw 0 66 474ms 2 Nov 2025 252nd GolfingSuccess 🇬🇷 0 66 430ms 4 Feb 2026 252nd albanian-laundromat 0 66 1,391ms 4 days ago 252nd Yax42 🇫🇷 0 66 484ms 2 days ago 252nd fuzzylojik-golf 🇺🇸 0 66 456ms 2 days ago 252nd edsrzf 🇳🇿 0 66 7ms 31 hours ago 252nd edsrzf 🇳🇿 0 66 1,345ms 14 hours ago 252nd edsrzf 🇳🇿 0 66 451ms 2 hours ago 264th GolfingSuccess 🇬🇷 0 67 12ms 8 May 2025 264th tomh1012 0 67 429ms 2 days ago 266th Shanethegamer 🇺🇸 0 68 145ms 26 Nov 2024 266th sean-niemann 🇺🇸 0 68 131ms 8 May 2025 266th edsrzf 🇳🇿 0 68 113ms 25 May 2025 266th GolfingSuccess 🇬🇷 0 68 110ms 3 days ago 266th fuzzylojik-golf 🇺🇸 0 68 1,320ms 20 hours ago 271st GolfingSuccess 🇬🇷 0 69 10ms 8 May 2025 271st CaedenHarper 🇨🇦 0 69 486ms 3 days ago 273rd JOrE20 0 70 41ms 13 Feb 2026 274th kg583 🇺🇸 0 71 27ms 1 Dec 2024 274th CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 274th GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 274th edsrzf 🇳🇿 0 71 14ms 8 May 2025 274th AlephSquirrel 0 71 13ms 9 May 2025 279th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 279th dokutan 0 72 62ms 8 Feb 2026 281st GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 281st GolfingSuccess 🇬🇷 0 73 8ms 14 hours ago 283rd not-a-pokemon 0 74 15ms 19 hours ago 284th Shanethegamer 🇺🇸 0 75 99ms 26 Nov 2024 284th sean-niemann 🇺🇸 0 75 103ms 8 May 2025 284th HumanoidCPU 0 75 112ms 24 hours ago 287th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 287th fuzzylojik-golf 🇺🇸 0 76 99ms 2 days ago 287th edsrzf 🇳🇿 0 76 131ms 2 days ago 287th emgordon154 0 76 115ms 31 hours ago 287th MeWhenI 🇻🇦 0 76 98ms 16 hours ago 292nd rucin93 🇵🇱 0 77 130ms 8 May 2025 292nd ovs-code 🇩🇪 0 77 81ms 30 May 2025 292nd Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 292nd edsrzf 🇳🇿 0 77 7ms 16 hours ago 292nd GolfingSuccess 🇬🇷 0 77 8ms 14 hours ago 297th saito-ta 🇯🇵 0 78 4ms 10 May 2025 297th rhdqor213 0 78 4ms 10 May 2025 297th albanian-laundromat 0 78 93ms 4 days ago 297th fuzzylojik-golf 🇺🇸 0 78 8ms 21 hours ago 297th edsrzf 🇳🇿 0 78 425ms 14 hours ago 302nd GolfingSuccess 🇬🇷 0 79 79ms 14 May 2025 303rd sean-niemann 🇺🇸 0 80 455ms 8 May 2025 304th kumavale 0 81 156ms 26 Nov 2025 304th Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 304th albanian-laundromat 0 81 45ms 4 days ago 304th fuzzylojik-golf 🇺🇸 0 81 9ms 21 hours ago 304th stefangimmillaro 0 81 46ms 8 hours ago 309th GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 309th emgordon154 0 82 159ms 14 Feb 2026 309th emgordon154 0 82 454ms 33 hours ago 309th edsrzf 🇳🇿 0 82 161ms 10 hours ago 313th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 313th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 313th fantaize 0 83 156ms 15 days ago 313th GolfingSuccess 🇬🇷 0 83 33ms 32 hours ago 313th MeWhenI 🇻🇦 0 83 229ms 23 hours ago 318th Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 318th ovs-code 🇩🇪 0 84 12ms 10 May 2025 318th fuzzylojik-golf 🇺🇸 0 84 444ms 2 days ago First Prev 241–320 of 422 Next Last