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 161st hallvabo 🇳🇴 0 56 15ms 29 Nov 2024 161st kg583 🇺🇸 0 56 16ms 1 Dec 2024 161st CornerMercury 🇬🇧 0 56 15ms 3 Dec 2024 161st ndren 0 56 16ms 3 Dec 2024 161st lifthrasiir 🇰🇷 0 56 37ms 11 Dec 2024 161st GolfingSuccess 🇬🇷 0 56 16ms 30 Dec 2024 161st khvdm 0 56 16ms 12 Jan 2025 161st pardouin 🇫🇷 0 56 16ms 24 Feb 2025 161st Shanethegamer 🇺🇸 0 56 66ms 30 Apr 2025 161st GolfingSuccess 🇬🇷 0 56 70ms 8 May 2025 161st sean-niemann 🇺🇸 0 56 67ms 8 May 2025 161st sean-niemann 🇺🇸 0 56 16ms 8 May 2025 161st emgordon154 0 56 16ms 9 May 2025 161st dokutan 0 56 16ms 18 Aug 2025 161st albanian-laundromat 0 56 16ms 2 Dec 2025 161st DialFrost 🇸🇬 0 56 2,628ms 16 Dec 2025 161st Steffan153 🇫🇮 0 56 16ms 21 Feb 2026 161st fuzzylojik-golf 🇺🇸 0 56 17ms 2 days ago 161st Seek64 🇩🇪 0 56 16ms 2 days ago 161st BREMAUCY 🇫🇷 0 56 16ms 46 hours ago 161st HumanoidCPU 0 56 15ms 33 hours ago 161st plcc0 0 56 17ms 19 hours ago 183rd Shanethegamer 🇺🇸 0 57 326ms 25 May 2025 183rd sean-niemann 🇺🇸 0 57 176ms 25 May 2025 183rd edsrzf 🇳🇿 0 57 167ms 25 May 2025 183rd GolfingSuccess 🇬🇷 0 57 171ms 13 Dec 2025 183rd Matter1024 🇮🇳 0 57 68ms 13 Feb 2026 183rd albanian-laundromat 0 57 296ms 2 days ago 189th GolfingSuccess 🇬🇷 0 58 4,218ms 8 May 2025 189th dokutan 0 58 189ms 12 hours ago 191st GolfingSuccess 🇬🇷 0 59 17ms 8 May 2025 191st IanUtley 0 59 18ms 8 May 2025 191st GolfingSuccess 🇬🇷 0 59 63ms 8 May 2025 194th pardouin 🇫🇷 0 60 2,725ms 15 Feb 2026 194th fuzzylojik-golf 🇺🇸 0 60 16ms 2 days ago 194th emgordon154 0 60 3,008ms 29 hours ago 194th edsrzf 🇳🇿 0 60 2,595ms 27 hours ago 194th fuzzylojik-golf 🇺🇸 0 60 2,673ms 21 hours ago 199th GolfingSuccess 🇬🇷 0 61 2,438ms 8 May 2025 199th madex 🇩🇪 0 61 2,738ms 4 days ago 201st AlephSquirrel 0 62 15ms 25 Nov 2024 201st btnlq 0 62 15ms 4 Dec 2024 201st Shanethegamer 🇺🇸 0 62 16ms 10 Dec 2024 201st Artemis21 🇬🇧 0 62 16ms 24 Dec 2024 201st ovs-code 🇩🇪 0 62 15ms 5 Jan 2025 201st bricknellj 0 62 16ms 30 Jan 2025 201st DialFrost 🇸🇬 0 62 15ms 17 Feb 2025 201st error256 0 62 16ms 12 Apr 2025 201st MeWhenI 🇻🇦 0 62 14ms 8 May 2025 201st Shanethegamer 🇺🇸 0 62 2,495ms 8 May 2025 201st 4atj 0 62 16ms 9 May 2025 201st Natanaelel 🇸🇪 0 62 16ms 11 May 2025 201st hiichbindermax 0 62 18ms 17 Aug 2025 201st 5cw 🇺🇸 0 62 15ms 22 Aug 2025 201st commandz0 🇺🇸 0 62 15ms 27 Aug 2025 201st SirBogman 🇺🇸 0 62 15ms 12 Oct 2025 201st KasperKivimaeki 🇫🇮 0 62 15ms 20 Oct 2025 201st GolfingSuccess 🇬🇷 0 62 5ms 13 Dec 2025 201st Matter1024 🇮🇳 0 62 15ms 12 Feb 2026 201st lukegustafson 🇺🇸 0 62 36ms 17 days ago 201st aksyristos 0 62 14ms 14 days ago 201st madex 🇩🇪 0 62 15ms 6 days ago 201st CaedenHarper 🇨🇦 0 62 16ms 4 days ago 201st KatieLG 🇬🇧 0 62 17ms 2 days ago 201st KatieLG 🇬🇧 0 62 416ms 2 days ago 201st scpchicken 🇵🇼 0 62 15ms 2 days ago 201st StefanHabel 🇨🇦 0 62 15ms 2 days ago 201st blaztoma 🇱🇹 0 62 15ms 2 days ago 201st Emutis 🇱🇹 0 62 16ms 46 hours ago 201st Andrey2001 0 62 16ms 40 hours ago 201st anter69 🇭🇺 0 62 15ms 36 hours ago 201st qpwoeirut 0 62 17ms 28 hours ago 201st stefangimmillaro 0 62 16ms 27 hours ago 201st btjones0 0 62 15ms 25 hours ago 201st bzijlema 🇳🇱 0 62 16ms 22 hours ago 201st ahmetdemirag 🇨🇾 0 62 15ms 19 hours ago 201st Pyroan 0 62 19ms 12 hours ago 201st edsrzf 🇳🇿 0 62 15ms 11 hours ago 201st zacjl 0 62 17ms 4 hours ago 201st MeWhenI 🇻🇦 0 62 86ms 3 hours ago First Prev 161–240 of 415 Next Last