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 318th fuzzylojik-golf 🇺🇸 0 81 9ms 31 hours ago 318th stefangimmillaro 0 81 46ms 18 hours ago 323rd GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 323rd emgordon154 0 82 159ms 14 Feb 2026 323rd emgordon154 0 82 454ms 43 hours ago 323rd edsrzf 🇳🇿 0 82 161ms 20 hours ago 327th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 327th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 327th fantaize 0 83 156ms 16 days ago 327th GolfingSuccess 🇬🇷 0 83 33ms 42 hours ago 327th MeWhenI 🇻🇦 0 83 229ms 33 hours ago 332nd Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 332nd ovs-code 🇩🇪 0 84 12ms 10 May 2025 332nd fuzzylojik-golf 🇺🇸 0 84 444ms 2 days ago 332nd KasperKivimaeki 🇫🇮 0 84 12ms 28 hours ago 336th edsrzf 🇳🇿 0 85 42ms 8 May 2025 336th edsrzf 🇳🇿 0 85 18ms 9 May 2025 336th error256 0 85 18ms 10 May 2025 336th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 336th HumanoidCPU 0 85 434ms 19 hours ago 341st Shanethegamer 🇺🇸 0 86 147ms 17 Dec 2024 341st kg583 🇺🇸 0 86 39ms 16 Feb 2025 341st GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 341st GolfingSuccess 🇬🇷 0 86 2,577ms 8 May 2025 341st sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 341st MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 341st GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 341st elgan65536 🇺🇸 0 86 168ms 25 days ago 341st CaedenHarper 🇨🇦 0 86 399ms 4 days ago 341st CaedenHarper 🇨🇦 0 86 153ms 3 days ago 341st edsrzf 🇳🇿 0 86 414ms 42 hours ago 341st emgordon154 0 86 406ms 29 hours ago 341st GolfingSuccess 🇬🇷 0 86 19ms 21 hours ago 341st Steffan153 🇫🇮 0 86 390ms 6 hours ago 341st Steffan153 🇫🇮 0 86 19ms 4 hours ago 356th Shanethegamer 🇺🇸 0 87 42ms 15 Apr 2025 356th Shanethegamer 🇺🇸 0 87 20ms 8 May 2025 356th albanian-laundromat 0 87 1,424ms 4 days ago 356th Yax42 🇫🇷 0 87 2,430ms 2 days ago 356th Steffan153 🇫🇮 0 87 180ms 4 hours ago 356th Steffan153 🇫🇮 0 87 4ms 83 mins ago 362nd kg583 🇺🇸 0 88 23ms 12 Feb 2026 362nd fuzzylojik-golf 🇺🇸 0 88 152ms 2 days ago 364th Shanethegamer 🇺🇸 0 89 341ms 6 May 2025 364th Shanethegamer 🇺🇸 0 89 511ms 24 Sep 2025 364th DialFrost 🇸🇬 0 89 367ms 21 Nov 2025 364th CaedenHarper 🇨🇦 0 89 103ms 3 days ago 364th roelderickx 0 89 1,614ms 10 hours ago 369th Yax42 🇫🇷 0 90 13ms 2 days ago 370th GolfingSuccess 🇬🇷 0 91 14ms 13 Dec 2025 371st namelessiw 0 92 504ms 10 Oct 2025 371st fuzzylojik-golf 🇺🇸 0 92 383ms 2 days ago 371st madex 🇩🇪 0 92 12ms 46 hours ago 374th edsrzf 🇳🇿 0 93 187ms 17 May 2025 374th CaedenHarper 🇨🇦 0 93 13ms 5 days ago 376th DialFrost 🇸🇬 0 94 13ms 10 May 2025 376th edsrzf 🇳🇿 0 94 21ms 25 hours ago 378th Yax42 🇫🇷 0 95 389ms 2 days ago 379th GolfingSuccess 🇬🇷 0 96 182ms 7 May 2025 379th HumanoidCPU 0 96 160ms 45 hours ago 381st Shanethegamer 🇺🇸 0 98 7ms 6 May 2025 382nd snydej 0 99 43ms 22 Nov 2024 382nd albanian-laundromat 0 99 343ms 4 days ago 382nd dokutan 0 99 409ms 33 hours ago 385th dokutan 0 100 19ms 33 hours ago 385th ovs-code 🇩🇪 0 100 160ms 5 hours ago 387th HumanoidCPU 0 101 361ms 23 hours ago 387th HumanoidCPU 0 101 382ms 20 hours ago 389th sean-niemann 🇺🇸 0 102 286ms 8 May 2025 389th Shanethegamer 🇺🇸 0 102 307ms 8 May 2025 389th edsrzf 🇳🇿 0 102 295ms 9 May 2025 389th GolfingSuccess 🇬🇷 0 102 306ms 9 May 2025 389th ovs-code 🇩🇪 0 102 311ms 13 Dec 2025 389th kg583 🇺🇸 0 102 13ms 25 Jan 2026 389th CaedenHarper 🇨🇦 0 102 301ms 5 days ago 389th fuzzylojik-golf 🇺🇸 0 102 292ms 2 days ago 389th emgordon154 0 102 274ms 39 hours ago 389th edsrzf 🇳🇿 0 102 341ms 12 hours ago 389th Steffan153 🇫🇮 0 102 338ms 5 hours ago 389th Steffan153 🇫🇮 0 102 284ms 73 mins ago First Prev 321–400 of 445 Next Last