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 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 80th fuzzylojik-golf 🇺🇸 0 41 1,405ms 2 days ago 80th edsrzf 🇳🇿 0 41 1,468ms 13 hours ago 83rd ovs-code 🇩🇪 0 42 81ms 30 May 2025 83rd anter69 🇭🇺 0 42 1,272ms 37 hours ago 85th sean-niemann 🇺🇸 0 43 8ms 8 May 2025 85th targrik 0 43 9ms 3 Sep 2025 87th Shanethegamer 🇺🇸 0 44 12ms 10 Dec 2024 87th DialFrost 🇸🇬 0 44 11ms 24 Feb 2025 87th rucin93 🇵🇱 0 44 12ms 24 Feb 2025 87th error256 0 44 14ms 12 Apr 2025 87th GolfingSuccess 🇬🇷 0 44 9ms 8 May 2025 87th GolfingSuccess 🇬🇷 0 44 13ms 8 May 2025 87th Natanaelel 🇸🇪 0 44 12ms 8 May 2025 87th sean-niemann 🇺🇸 0 44 12ms 8 May 2025 87th edsrzf 🇳🇿 0 44 9ms 10 May 2025 87th 4atj 0 44 15ms 8 Jun 2025 87th lukegustafson 🇺🇸 0 44 14ms 16 Jun 2025 87th JOrE20 0 44 12ms 6 Dec 2025 87th voytxt 🇨🇿 0 44 12ms 6 Feb 2026 87th Steffan153 🇫🇮 0 44 16ms 19 Feb 2026 87th CaedenHarper 🇨🇦 0 44 14ms 3 days ago 87th fuzzylojik-golf 🇺🇸 0 44 11ms 2 days ago 87th fuzzylojik-golf 🇺🇸 0 44 9ms 2 days ago 87th Yax42 🇫🇷 0 44 12ms 39 hours ago 87th helbling 🇨🇭 0 44 12ms 37 hours ago 87th HumanoidCPU 0 44 15ms 23 hours ago 87th emgordon154 0 44 12ms 19 hours ago 87th MeWhenI 🇻🇦 0 44 14ms 13 hours ago 87th edsrzf 🇳🇿 0 44 13ms 13 hours ago 87th ComradeSquirrel 0 44 12ms 3 hours ago 111th Andrey-Plotnikov 0 45 12ms 10 Jan 2025 111th saito-ta 🇯🇵 0 45 555ms 10 May 2025 111th GolfingSuccess 🇬🇷 0 45 79ms 14 May 2025 111th XenThe 🇬🇧 0 45 14ms 15 Jul 2025 111th smclaughlin-cf 0 45 13ms 14 Oct 2025 111th albanian-laundromat 0 45 12ms 4 days ago 117th Shanethegamer 🇺🇸 0 46 377ms 26 Nov 2024 117th kg583 🇺🇸 0 46 458ms 1 Dec 2024 117th Shanethegamer 🇺🇸 0 46 527ms 10 Dec 2024 117th GolfingSuccess 🇬🇷 0 46 458ms 30 Dec 2024 117th pardouin 🇫🇷 0 46 416ms 24 Feb 2025 117th Shanethegamer 🇺🇸 0 46 8ms 30 Apr 2025 117th GolfingSuccess 🇬🇷 0 46 7ms 8 May 2025 117th rucin93 🇵🇱 0 46 8ms 11 May 2025 117th Steffan153 🇫🇮 0 46 376ms 27 days ago 117th fuzzylojik-golf 🇺🇸 0 46 409ms 2 days ago 117th edsrzf 🇳🇿 0 46 7ms 2 days ago 128th lifthrasiir 🇰🇷 0 47 416ms 11 Dec 2024 128th emgordon154 0 47 404ms 9 May 2025 128th LukeBridges 🇬🇧 0 47 11ms 43 hours ago 131st HumanoidCPU 0 48 1,424ms 22 hours ago 132nd plcc0 0 49 463ms 4 mins ago 133rd antimon2 🇯🇵 0 50 288ms 16 Dec 2024 133rd Shanethegamer 🇺🇸 0 50 315ms 1 Feb 2025 133rd ovs-code 🇩🇪 0 50 448ms 23 Feb 2025 133rd CaedenHarper 🇨🇦 0 50 733ms 4 days ago 133rd Steffan153 🇫🇮 0 50 776ms 4 days ago 133rd edsrzf 🇳🇿 0 50 872ms 4 days ago 133rd GolfingSuccess 🇬🇷 0 50 765ms 3 days ago 133rd DialFrost 🇸🇬 0 50 330ms 11 hours ago 141st Shanethegamer 🇺🇸 0 51 5ms 30 Apr 2025 141st GolfingSuccess 🇬🇷 0 51 157ms 8 May 2025 141st rucin93 🇵🇱 0 51 159ms 8 May 2025 141st Shanethegamer 🇺🇸 0 51 150ms 8 May 2025 141st sean-niemann 🇺🇸 0 51 150ms 9 May 2025 141st DialFrost 🇸🇬 0 51 302ms 8 Sep 2025 141st HumanoidCPU 0 51 394ms 35 hours ago 141st albanian-laundromat 0 51 5ms 28 hours ago 149th DialFrost 🇸🇬 0 52 461ms 17 Feb 2025 149th CaedenHarper 🇨🇦 0 52 530ms 4 days ago 151st dokutan 0 53 426ms 15 Aug 2025 151st MeWhenI 🇻🇦 0 53 393ms 21 Nov 2025 151st albanian-laundromat 0 53 467ms 15 Jan 2026 151st AlephSquirrel 0 53 383ms 3 days ago 155th Shanethegamer 🇺🇸 0 54 69ms 12 Dec 2024 155th error256 0 54 66ms 12 Apr 2025 155th albanian-laundromat 0 54 779ms 15 Jan 2026 155th GolfingSuccess 🇬🇷 0 54 71ms 3 days ago 155th dokutan 0 54 778ms 39 hours ago 155th fuzzylojik-golf 🇺🇸 0 54 81ms 19 hours ago First Prev 81–160 of 419 Next Last