The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 23 hours. 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 319th MeWhenI 🇻🇦 0 69 454ms 3 days ago 322nd JOrE20 0 70 41ms 13 Feb 2026 323rd kg583 🇺🇸 0 71 27ms 1 Dec 2024 323rd CLOStrophobic 🇮🇹 0 71 13ms 18 Jan 2025 323rd GolfingSuccess 🇬🇷 0 71 14ms 7 May 2025 323rd edsrzf 🇳🇿 0 71 14ms 8 May 2025 323rd AlephSquirrel 0 71 13ms 9 May 2025 323rd emgordon154 0 71 32ms 40 hours ago 323rd michelebastione 🇮🇹 0 71 926ms 3 hours ago 330th Shanethegamer 🇺🇸 0 72 27ms 9 Dec 2024 331st GolfingSuccess 🇬🇷 0 73 16ms 8 May 2025 331st GolfingSuccess 🇬🇷 0 73 9ms 5 days ago 333rd not-a-pokemon 0 74 14ms 5 days ago 334th Shanethegamer 🇺🇸 0 75 95ms 26 Nov 2024 334th sean-niemann 🇺🇸 0 75 105ms 8 May 2025 334th HumanoidCPU 0 75 110ms 5 days ago 334th MeWhenI 🇻🇦 0 75 102ms 3 days ago 334th aksyristos 0 75 14ms 14 hours ago 339th GolfingSuccess 🇬🇷 0 76 133ms 28 Nov 2025 339th fuzzylojik-golf 🇺🇸 0 76 99ms 6 days ago 339th edsrzf 🇳🇿 0 76 131ms 6 days ago 339th emgordon154 0 76 115ms 5 days ago 339th fuzzylojik-golf 🇺🇸 0 76 16ms 23 hours ago 344th rucin93 🇵🇱 0 77 130ms 8 May 2025 344th Shanethegamer 🇺🇸 0 77 146ms 12 Nov 2025 344th edsrzf 🇳🇿 0 77 7ms 5 days ago 344th GolfingSuccess 🇬🇷 0 77 8ms 5 days ago 344th Steffan153 🇫🇮 0 77 7ms 4 days ago 349th saito-ta 🇯🇵 0 78 4ms 10 May 2025 349th rhdqor213 0 78 4ms 10 May 2025 349th albanian-laundromat 0 78 89ms 9 days ago 349th edsrzf 🇳🇿 0 78 425ms 5 days ago 353rd madex 🇩🇪 0 79 110ms 2 days ago 354th sean-niemann 🇺🇸 0 80 455ms 8 May 2025 355th kumavale 0 81 170ms 26 Nov 2025 355th Matter1024 🇮🇳 0 81 45ms 14 Feb 2026 355th albanian-laundromat 0 81 45ms 9 days ago 355th fuzzylojik-golf 🇺🇸 0 81 9ms 5 days ago 355th stefangimmillaro 0 81 44ms 4 days ago 355th KasperKivimaeki 🇫🇮 0 81 4ms 3 days ago 361st GolfingSuccess 🇬🇷 0 82 502ms 8 May 2025 361st emgordon154 0 82 165ms 14 Feb 2026 361st emgordon154 0 82 452ms 5 days ago 361st edsrzf 🇳🇿 0 82 167ms 4 days ago 361st GolfingSuccess 🇬🇷 0 82 17ms 3 days ago 366th Shanethegamer 🇺🇸 0 83 484ms 26 Nov 2024 366th Shanethegamer 🇺🇸 0 83 403ms 9 Jul 2025 366th fantaize 0 83 153ms 20 days ago 366th GolfingSuccess 🇬🇷 0 83 33ms 5 days ago 366th MeWhenI 🇻🇦 0 83 229ms 5 days ago 366th KrausRaus 🇺🇸 0 83 13ms 3 days ago 366th madex 🇩🇪 0 83 103ms 2 days ago 373rd Shanethegamer 🇺🇸 0 84 416ms 26 Nov 2024 373rd ovs-code 🇩🇪 0 84 12ms 10 May 2025 373rd fuzzylojik-golf 🇺🇸 0 84 444ms 6 days ago 373rd dokutan 0 84 417ms 3 days ago 377th edsrzf 🇳🇿 0 85 42ms 8 May 2025 377th edsrzf 🇳🇿 0 85 18ms 9 May 2025 377th error256 0 85 18ms 10 May 2025 377th GolfingSuccess 🇬🇷 0 85 3ms 14 Jan 2026 377th HumanoidCPU 0 85 434ms 4 days ago 377th HumanoidCPU 0 85 419ms 3 days ago 377th madex 🇩🇪 0 85 72ms 2 days ago 384th Shanethegamer 🇺🇸 0 86 158ms 17 Dec 2024 384th kg583 🇺🇸 0 86 39ms 16 Feb 2025 384th GolfingSuccess 🇬🇷 0 86 44ms 7 May 2025 384th GolfingSuccess 🇬🇷 0 86 2,473ms 8 May 2025 384th sean-niemann 🇺🇸 0 86 496ms 25 Sep 2025 384th MeWhenI 🇻🇦 0 86 381ms 21 Nov 2025 384th GolfingSuccess 🇬🇷 0 86 399ms 12 Jan 2026 384th elgan65536 🇺🇸 0 86 164ms 1 Mar 2026 384th CaedenHarper 🇨🇦 0 86 399ms 8 days ago 384th CaedenHarper 🇨🇦 0 86 154ms 7 days ago 384th edsrzf 🇳🇿 0 86 402ms 5 days ago 384th emgordon154 0 86 406ms 5 days ago 384th GolfingSuccess 🇬🇷 0 86 19ms 4 days ago 384th Steffan153 🇫🇮 0 86 390ms 4 days ago 384th Steffan153 🇫🇮 0 86 19ms 4 days ago 384th stefangimmillaro 0 86 154ms 3 days ago 384th dokutan 0 86 19ms 2 days ago First Prev 321–400 of 512 Next Last