The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 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 318th edsrzf 🇳🇿 0 71 14ms 8 May 2025 318th AlephSquirrel 0 71 13ms 9 May 2025 318th emgordon154 0 71 32ms 13 hours ago 324th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 325th GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 325th GolfingSuccess 🇬🇷 0 73 8ms 4 days ago 325th michelebastione 🇮🇹 0 73 402ms 88 mins ago 328th not-a-pokemon 0 74 15ms 4 days ago 329th Shanethegamer 🇺🇸 0 75 107ms 26 Nov 2024 329th sean-niemann 🇺🇸 0 75 106ms 8 May 2025 329th HumanoidCPU 0 75 110ms 4 days ago 329th MeWhenI 🇻🇦 0 75 102ms 2 days ago 333rd GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 333rd fuzzylojik-golf 🇺🇸 0 76 99ms 5 days ago 333rd edsrzf 🇳🇿 0 76 131ms 5 days ago 333rd emgordon154 0 76 115ms 4 days ago 337th rucin93 🇵🇱 0 77 130ms 8 May 2025 337th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 337th edsrzf 🇳🇿 0 77 7ms 4 days ago 337th GolfingSuccess 🇬🇷 0 77 8ms 4 days ago 337th Steffan153 🇫🇮 0 77 7ms 3 days ago 342nd saito-ta 🇯🇵 0 78 4ms 10 May 2025 342nd rhdqor213 0 78 4ms 10 May 2025 342nd albanian-laundromat 0 78 98ms 7 days ago 342nd fuzzylojik-golf 🇺🇸 0 78 8ms 4 days ago 342nd edsrzf 🇳🇿 0 78 425ms 4 days ago 347th madex 🇩🇪 0 79 110ms 26 hours ago 348th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 349th kumavale 0 81 170ms 26 Nov 2025 349th Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 349th albanian-laundromat 0 81 45ms 7 days ago 349th fuzzylojik-golf 🇺🇸 0 81 9ms 4 days ago 349th stefangimmillaro 0 81 44ms 3 days ago 349th KasperKivimaeki 🇫🇮 0 81 4ms 47 hours ago 355th GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 355th emgordon154 0 82 170ms 14 Feb 2026 355th emgordon154 0 82 452ms 4 days ago 355th edsrzf 🇳🇿 0 82 167ms 3 days ago 355th GolfingSuccess 🇬🇷 0 82 17ms 2 days ago 360th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 360th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 360th fantaize 0 83 163ms 19 days ago 360th GolfingSuccess 🇬🇷 0 83 33ms 4 days ago 360th MeWhenI 🇻🇦 0 83 229ms 4 days ago 360th KrausRaus 🇺🇸 0 83 13ms 2 days ago 360th madex 🇩🇪 0 83 111ms 26 hours ago 367th Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 367th ovs-code 🇩🇪 0 84 12ms 10 May 2025 367th fuzzylojik-golf 🇺🇸 0 84 444ms 5 days ago 367th dokutan 0 84 417ms 2 days ago 371st edsrzf 🇳🇿 0 85 42ms 8 May 2025 371st edsrzf 🇳🇿 0 85 18ms 9 May 2025 371st error256 0 85 18ms 10 May 2025 371st GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 371st HumanoidCPU 0 85 434ms 3 days ago 371st HumanoidCPU 0 85 419ms 2 days ago 371st madex 🇩🇪 0 85 72ms 27 hours ago 378th Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 378th kg583 🇺🇸 0 86 39ms 16 Feb 2025 378th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 378th GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 378th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 378th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 378th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 378th elgan65536 🇺🇸 0 86 164ms 1 Mar 2026 378th CaedenHarper 🇨🇦 0 86 399ms 7 days ago 378th CaedenHarper 🇨🇦 0 86 154ms 6 days ago 378th edsrzf 🇳🇿 0 86 414ms 4 days ago 378th emgordon154 0 86 406ms 4 days ago 378th GolfingSuccess 🇬🇷 0 86 19ms 3 days ago 378th Steffan153 🇫🇮 0 86 390ms 3 days ago 378th Steffan153 🇫🇮 0 86 19ms 3 days ago 378th stefangimmillaro 0 86 154ms 2 days ago 378th dokutan 0 86 19ms 31 hours ago 395th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 395th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 395th albanian-laundromat 0 87 1,424ms 7 days ago 395th Yax42 🇫🇷 0 87 2,340ms 5 days ago 395th Steffan153 🇫🇮 0 87 180ms 3 days ago 395th Steffan153 🇫🇮 0 87 4ms 3 days ago First Prev 321–400 of 503 Next Last