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 chars. 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 Chars Time Submitted 81st Shanethegamer 🇺🇸 0 44 12ms 10 Dec 2024 81st DialFrost 🇸🇬 0 44 11ms 24 Feb 2025 81st rucin93 🇵🇱 0 44 12ms 24 Feb 2025 81st error256 0 44 14ms 12 Apr 2025 81st GolfingSuccess 🇬🇷 0 44 9ms 8 May 2025 81st GolfingSuccess 🇬🇷 0 44 13ms 8 May 2025 81st Natanaelel 🇸🇪 0 44 12ms 8 May 2025 81st sean-niemann 🇺🇸 0 44 12ms 8 May 2025 81st edsrzf 🇳🇿 0 44 9ms 10 May 2025 81st 4atj 0 44 15ms 8 Jun 2025 81st lukegustafson 🇺🇸 0 44 14ms 16 Jun 2025 81st JOrE20 0 44 12ms 6 Dec 2025 81st voytxt 🇨🇿 0 44 12ms 6 Feb 2026 81st Steffan153 🇫🇮 0 44 16ms 19 Feb 2026 81st CaedenHarper 🇨🇦 0 44 14ms 2 days ago 81st fuzzylojik-golf 🇺🇸 0 44 11ms 41 hours ago 81st fuzzylojik-golf 🇺🇸 0 44 9ms 41 hours ago 81st Yax42 🇫🇷 0 44 12ms 25 hours ago 81st helbling 🇨🇭 0 44 12ms 24 hours ago 81st HumanoidCPU 0 44 15ms 10 hours ago 81st emgordon154 0 44 12ms 5 hours ago 102nd Andrey-Plotnikov 0 45 12ms 10 Jan 2025 102nd saito-ta 🇯🇵 0 45 555ms 10 May 2025 102nd GolfingSuccess 🇬🇷 0 45 79ms 14 May 2025 102nd XenThe 🇬🇧 0 45 14ms 15 Jul 2025 102nd smclaughlin-cf 0 45 13ms 14 Oct 2025 102nd albanian-laundromat 0 45 12ms 3 days ago 108th Shanethegamer 🇺🇸 0 46 377ms 26 Nov 2024 108th kg583 🇺🇸 0 46 458ms 1 Dec 2024 108th Shanethegamer 🇺🇸 0 46 527ms 10 Dec 2024 108th GolfingSuccess 🇬🇷 0 46 458ms 30 Dec 2024 108th pardouin 🇫🇷 0 46 416ms 24 Feb 2025 108th Shanethegamer 🇺🇸 0 46 8ms 30 Apr 2025 108th GolfingSuccess 🇬🇷 0 46 7ms 8 May 2025 108th rucin93 🇵🇱 0 46 8ms 11 May 2025 108th Steffan153 🇫🇮 0 46 376ms 26 days ago 108th fuzzylojik-golf 🇺🇸 0 46 409ms 44 hours ago 108th edsrzf 🇳🇿 0 46 7ms 44 hours ago 119th lifthrasiir 🇰🇷 0 47 416ms 11 Dec 2024 119th emgordon154 0 47 404ms 9 May 2025 119th LukeBridges 🇬🇧 0 47 11ms 29 hours ago 122nd HumanoidCPU 0 48 1,424ms 8 hours ago 122nd MeWhenI 🇻🇦 0 48 12ms a min ago 124th antimon2 🇯🇵 0 50 288ms 16 Dec 2024 124th Shanethegamer 🇺🇸 0 50 315ms 1 Feb 2025 124th ovs-code 🇩🇪 0 50 448ms 23 Feb 2025 124th CaedenHarper 🇨🇦 0 50 733ms 3 days ago 124th Steffan153 🇫🇮 0 50 776ms 3 days ago 124th edsrzf 🇳🇿 0 50 872ms 3 days ago 124th GolfingSuccess 🇬🇷 0 50 765ms 2 days ago 131st DialFrost 🇸🇬 0 51 269ms 24 Feb 2025 131st Shanethegamer 🇺🇸 0 51 5ms 30 Apr 2025 131st GolfingSuccess 🇬🇷 0 51 157ms 8 May 2025 131st rucin93 🇵🇱 0 51 159ms 8 May 2025 131st Shanethegamer 🇺🇸 0 51 150ms 8 May 2025 131st sean-niemann 🇺🇸 0 51 150ms 9 May 2025 131st DialFrost 🇸🇬 0 51 302ms 8 Sep 2025 131st HumanoidCPU 0 51 394ms 21 hours ago 131st albanian-laundromat 0 51 5ms 14 hours ago 140th DialFrost 🇸🇬 0 52 474ms 17 Feb 2025 140th CaedenHarper 🇨🇦 0 52 530ms 4 days ago 142nd dokutan 0 53 426ms 15 Aug 2025 142nd MeWhenI 🇻🇦 0 53 393ms 21 Nov 2025 142nd albanian-laundromat 0 53 467ms 15 Jan 2026 142nd AlephSquirrel 0 53 383ms 3 days ago 146th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 146th error256 0 54 66ms 12 Apr 2025 146th albanian-laundromat 0 54 779ms 15 Jan 2026 146th GolfingSuccess 🇬🇷 0 54 71ms 2 days ago 146th dokutan 0 54 778ms 25 hours ago 146th fuzzylojik-golf 🇺🇸 0 54 81ms 5 hours ago 152nd albanian-laundromat 0 55 39ms 3 days ago 153rd hallvabo 🇳🇴 0 56 15ms 29 Nov 2024 153rd kg583 🇺🇸 0 56 16ms 1 Dec 2024 153rd CornerMercury 🇬🇧 0 56 15ms 3 Dec 2024 153rd ndren 0 56 16ms 3 Dec 2024 153rd lifthrasiir 🇰🇷 0 56 37ms 11 Dec 2024 153rd GolfingSuccess 🇬🇷 0 56 16ms 30 Dec 2024 153rd khvdm 0 56 16ms 12 Jan 2025 153rd pardouin 🇫🇷 0 56 16ms 24 Feb 2025 First Prev 81–160 of 390 Next Last