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?
Fibonacci in Python 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 191st DiogoMJP 947 38 10ms 29 Apr 2022 191st Drew-j-Smith 947 38 9ms 2 May 2022 191st 104210 947 38 10ms 6 May 2022 191st Mortis66666 947 38 10ms 27 May 2022 191st GreenBeansAgainstVeganism 947 38 10ms 29 May 2022 191st Romain-1 🇫🇷 947 38 10ms 30 May 2022 191st tterem 947 38 10ms 8 Jun 2022 191st cb597 947 38 9ms 12 Jun 2022 191st Vdubro 947 38 10ms 12 Jun 2022 191st michael-pruglo 🇺🇦 947 38 10ms 14 Jun 2022 191st Tanami 947 38 11ms 30 Jun 2022 191st cyxv 947 38 9ms 30 Jun 2022 191st ionite34 947 38 9ms 1 Jul 2022 191st dylan-dang 947 38 9ms 1 Jul 2022 191st Re-Adventures 🇮🇳 947 38 10ms 6 Jul 2022 191st andre-de-lorde 947 38 10ms 6 Jul 2022 191st Santarii 947 38 10ms 10 Jul 2022 191st jhu04 947 38 9ms 10 Jul 2022 191st Resisst 947 38 10ms 10 Jul 2022 191st sleepyStick 947 38 10ms 14 Jul 2022 191st tri1212 🇻🇳 947 38 10ms 17 Jul 2022 191st Mastery-Over-All 947 38 10ms 20 Jul 2022 191st jhpaques 🇫🇷 947 38 9ms 28 Jul 2022 191st pichu2405 947 38 10ms 28 Jul 2022 191st 051 🇸🇬 947 38 11ms 7 Aug 2022 191st InigoK 🇺🇸 947 38 9ms 8 Aug 2022 191st betaveros 947 38 10ms 9 Aug 2022 191st vishwathg 947 38 10ms 10 Aug 2022 191st vhoulbreque 🇫🇷 947 38 10ms 10 Aug 2022 191st TobyBoyne 🇬🇧 947 38 10ms 12 Aug 2022 191st elephantpanda 947 38 9ms 26 Aug 2022 191st eddvrs 947 38 10ms 26 Aug 2022 191st limtis0 947 38 9ms 2 Sep 2022 191st Eilonlif 🇮🇱 947 38 10ms 3 Sep 2022 191st jfallon1997 947 38 9ms 6 Sep 2022 191st suwat513 947 38 10ms 12 Sep 2022 191st smartiel 947 38 11ms 13 Sep 2022 191st alanbubalo 947 38 10ms 15 Sep 2022 191st LukasFolwarczny 🇨🇿 947 38 10ms 15 Sep 2022 191st sleepingtable 947 38 10ms 16 Sep 2022 191st LogicalJoe 947 38 11ms 16 Sep 2022 191st commandz0 🇺🇸 947 38 11ms 17 Sep 2022 191st pascscha 947 38 9ms 18 Sep 2022 191st dragondoodler222 947 38 10ms 26 Sep 2022 191st fredrik-bakke 🇳🇴 947 38 10ms 29 Sep 2022 191st Yareeeema 947 38 10ms 29 Sep 2022 191st TheBlupper 947 38 10ms 3 Oct 2022 191st Edjyzod 947 38 9ms 3 Oct 2022 191st kevdah 947 38 10ms 5 Oct 2022 191st ls-samer-abuthaher 947 38 9ms 7 Oct 2022 191st ValentinCassayre 947 38 9ms 8 Oct 2022 191st FlorianCassayre 🇫🇷 947 38 10ms 8 Oct 2022 191st AZ9tumas 947 38 10ms 10 Oct 2022 191st nstearns96 🇬🇧 947 38 9ms 15 Oct 2022 191st rqberry 947 38 10ms 27 Oct 2022 191st nichollsharrisonj 947 38 10ms 27 Oct 2022 191st zacharybarbanell 947 38 10ms 27 Oct 2022 191st cros107 🇦🇺 947 38 10ms 28 Oct 2022 191st 0-4849 947 38 10ms 28 Oct 2022 191st CameronGBell 947 38 10ms 1 Nov 2022 191st madex 🇩🇪 947 38 9ms 9 Nov 2022 191st fourth-bit 947 38 10ms 12 Nov 2022 191st jakobkordez 🇸🇮 947 38 9ms 15 Nov 2022 191st xorfish215 947 38 9ms 15 Nov 2022 191st QuincyNash 🇺🇸 947 38 9ms 25 Nov 2022 191st StefanHabel 🇨🇦 947 38 10ms 1 Dec 2022 191st LiquidPulsar 947 38 10ms 1 Dec 2022 191st dzshn 947 38 9ms 3 Dec 2022 191st faraz-t 947 38 9ms 12 Dec 2022 191st mdnestor 947 38 10ms 14 Dec 2022 191st hectordubuis 947 38 10ms 16 Dec 2022 191st b10011 🇫🇮 947 38 10ms 19 Dec 2022 191st cefqrn 947 38 9ms 20 Dec 2022 191st randolchance 947 38 9ms 21 Dec 2022 191st CheeseCake628 🇳🇴 947 38 9ms 21 Dec 2022 191st 4ndyJ 🇬🇧 947 38 10ms 21 Dec 2022 191st Baxi-codes 947 38 10ms 25 Dec 2022 191st PickausernamePi 947 38 9ms 29 Dec 2022 191st NOS4A5I 947 38 9ms 30 Dec 2022 191st thehylian 947 38 10ms 2 Jan 2023 First Prev 481–560 of 2,095 Next Last