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 bytes. 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 Bytes Time Submitted 191st apineapple 947 38 10ms 11 Oct 2024 191st lc6chang 947 38 11ms 15 Oct 2024 191st yoramco 947 38 10ms 17 Oct 2024 191st lhulinsky 947 38 10ms 21 Oct 2024 191st wrss01 947 38 10ms 22 Oct 2024 191st Alex-Huggett 🇬🇧 947 38 10ms 22 Oct 2024 191st WhitingJarod 947 38 9ms 25 Oct 2024 191st moustave 947 38 10ms 29 Oct 2024 191st Maximizer02 947 38 10ms 4 Nov 2024 191st agreegious 947 38 10ms 17 Nov 2024 191st benjibon 947 38 10ms 20 Nov 2024 191st Unknownuserfrommars 947 38 10ms 20 Nov 2024 191st snydej 947 38 9ms 21 Nov 2024 191st JunkIce 947 38 10ms 25 Nov 2024 191st TralfamadorianComedian 947 38 9ms 6 Dec 2024 191st ImpressedByRocks 947 38 10ms 10 Dec 2024 191st GeneralFabian 947 38 9ms 14 Dec 2024 191st bltnppcnt 947 38 10ms 16 Dec 2024 191st croc54 947 38 9ms 22 Dec 2024 191st WCScrypto-official 947 38 9ms 23 Dec 2024 191st tigretigre 947 38 11ms 1 Jan 2025 191st munchsaga 947 38 10ms 13 Jan 2025 191st maxgodfrey2004 🇨🇦 947 38 10ms 14 Jan 2025 191st yujh-yujh 🇬🇸 947 38 10ms 14 Jan 2025 191st desecaw13 947 38 10ms 24 Jan 2025 191st jamesthekee 947 38 10ms 25 Jan 2025 191st itljan30 947 38 10ms 27 Jan 2025 191st Pablitoz-Code 🇮🇹 947 38 10ms 29 Jan 2025 191st martindotexe 🇳🇴 947 38 10ms 14 Feb 2025 191st not-a-pokemon 947 38 9ms 17 Feb 2025 191st mishak-sys 947 38 9ms 17 Feb 2025 191st andrewjc2000 947 38 9ms 21 Feb 2025 191st SectorCorruptor 947 38 10ms 24 Feb 2025 191st Pyroan 947 38 10ms 3 Mar 2025 191st albanian-laundromat 947 38 10ms 7 Mar 2025 191st gdpr777 947 38 12ms 9 Apr 2025 191st nilan425 947 38 11ms 15 Apr 2025 191st codewrite 🇬🇧 947 38 10ms 18 Apr 2025 191st Dandandooo 947 38 9ms 19 Apr 2025 191st kawrei 947 38 10ms 4 May 2025 191st 40fied4t 947 38 10ms 10 May 2025 191st kistlerf 🇨🇭 947 38 9ms 13 May 2025 191st TheZwierzLF 🇵🇱 947 38 10ms 20 May 2025 191st Lv0Sys 🇵🇱 947 38 10ms 30 May 2025 191st ffelixm 947 38 9ms 31 May 2025 191st smilesformiles3 947 38 11ms 15 Jun 2025 191st divyanshmanocha 947 38 11ms 17 Jun 2025 191st bknower 947 38 10ms 26 Jun 2025 191st RJFuller 947 38 10ms 1 Jul 2025 191st CoolBvll 947 38 11ms 10 Jul 2025 191st SanderRuud 947 38 9ms 13 Jul 2025 191st YAJUE114514 947 38 9ms 14 Jul 2025 191st redweasel 947 38 10ms 14 Jul 2025 191st csharpython 947 38 10ms 18 Jul 2025 191st dirckvdende 947 38 10ms 20 Jul 2025 191st 16hayhurstm 947 38 10ms 2 Aug 2025 191st jtyliu 947 38 10ms 6 Aug 2025 191st jacklee1792 947 38 11ms 6 Aug 2025 191st orsinium 947 38 10ms 14 Aug 2025 191st EthanJantz 947 38 12ms 15 Aug 2025 191st dilawarm 947 38 9ms 15 Aug 2025 191st wobblybits 947 38 9ms 15 Aug 2025 191st phucthaiv02 947 38 10ms 19 Aug 2025 191st denisfouchard 947 38 9ms 21 Aug 2025 191st janlelis 947 38 10ms 25 Aug 2025 191st Apataras 947 38 9ms 1 Sep 2025 191st iczelia 🇩🇪 947 38 10ms 22 Sep 2025 191st Alpha9584 947 38 10ms 24 Sep 2025 191st maxficco 947 38 10ms 27 Sep 2025 191st WildTooth 947 38 10ms 10 Oct 2025 191st giant-web 947 38 10ms 16 Oct 2025 191st LeBestDev 947 38 10ms 16 Oct 2025 191st CommandLeo 🇮🇹 947 38 10ms 2 Nov 2025 191st DrakeSeteraO 947 38 9ms 3 Nov 2025 191st GodlyProgrammer1 947 38 10ms 15 Nov 2025 191st Zach1031 947 38 10ms 15 Nov 2025 191st M4rc0g1 947 38 10ms 16 Nov 2025 191st joshmoody24 947 38 11ms 19 Nov 2025 191st peachey2k2 947 38 10ms 22 Nov 2025 191st kasarino 947 38 10ms 24 Nov 2025 First Prev 721–800 of 2,095 Next Last