The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 days. Why not try and solve them ahead of time?
Fibonacci in all languages 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 857th crholm 953 79 282ms 21 Apr 2020 857th tsakath 953 79 301ms 22 Apr 2020 857th SirBogman 🇺🇸 953 79 292ms 23 Apr 2020 857th cduerm 953 79 331ms 12 May 2020 857th prplz 🇦🇺 953 79 294ms 5 Jul 2020 857th dpatterbee 953 79 271ms 20 Aug 2020 857th KatieLG 🇬🇧 953 79 304ms 28 Sep 2020 857th Irratix 🇳🇱 953 79 290ms 17 Oct 2020 857th nwellnhof 🇩🇪 953 79 297ms 17 Oct 2020 857th NewDefectus 🇮🇱 953 79 294ms 1 Nov 2020 857th emplv 🇱🇻 953 79 294ms 24 Nov 2020 857th JayXon 🇺🇸 953 79 291ms 27 Dec 2020 857th GrayJoKing 🇦🇺 953 79 291ms 9 Jan 2021 857th Lydxn 🇨🇦 953 79 283ms 10 Jan 2021 857th sisyphus-ppcg 🇦🇺 953 79 292ms 22 Jan 2021 857th MatheusAvellar 🇧🇷 953 79 270ms 6 May 2021 857th Natanaelel 🇸🇪 953 79 294ms 27 May 2021 857th cure-honey 🇯🇵 953 79 289ms 23 Jun 2021 857th vang1ong7ang 953 79 288ms 26 Oct 2021 857th yzkonchain 953 79 288ms 26 Oct 2021 857th Hecate2 953 79 300ms 26 Oct 2021 857th MeWhenI 🇻🇦 953 79 302ms 4 Nov 2021 857th stefangimmillaro 953 79 284ms 7 Jan 2022 857th btnlq 953 79 296ms 1 Feb 2022 857th JRaspass 🇬🇧 953 79 291ms 29 Mar 2022 857th martin-viggiano 953 79 291ms 22 Jun 2022 857th hajimehoshi 🇯🇵 953 79 271ms 24 Sep 2022 857th Steffan153 🇫🇮 953 79 283ms 1 Oct 2022 857th kimbo 🇺🇸 953 79 297ms 27 Dec 2022 857th m-tkach 🇺🇦 953 79 295ms 14 Jun 2023 857th sean-niemann 🇺🇸 953 79 275ms 27 Jun 2023 857th ovs-code 🇩🇪 953 79 287ms 16 Aug 2023 857th snoozingnewt 🇨🇦 953 79 278ms 23 Sep 2023 857th Yewzir 🇧🇪 953 79 288ms 21 Oct 2023 857th elgan65536 🇺🇸 953 79 282ms 23 Oct 2023 857th Betuaredead 953 79 294ms 12 Nov 2023 857th DialFrost 🇸🇬 953 79 294ms 16 Dec 2023 857th kkoenig 953 79 289ms 22 Dec 2023 857th harshit54 953 79 285ms 6 Jan 2024 857th bzijlema 🇳🇱 953 79 286ms 26 Jan 2024 857th bastatom 953 79 286ms 16 Feb 2024 857th neel11235813 953 79 307ms 26 Mar 2024 857th Grrisly 953 79 276ms 27 Mar 2024 857th jipsong 🇩🇪 953 79 308ms 13 Jun 2024 857th dbut2 🇦🇺 953 79 299ms 16 Jul 2024 857th edsrzf 🇳🇿 953 79 289ms 2 Sep 2024 857th pardouin 🇫🇷 953 79 292ms 4 Sep 2024 857th duckyluuk 🇳🇱 953 79 286ms 19 Sep 2024 857th b-illy 🇬🇧 953 79 291ms 29 Sep 2024 857th CaedenHarper 🇨🇦 953 79 301ms 22 Oct 2024 857th emgordon154 953 79 289ms 11 Nov 2024 857th error256 953 79 313ms 16 Dec 2024 857th martindotexe 🇳🇴 953 79 290ms 22 Apr 2025 857th fuzzylojik-golf 🇺🇸 953 79 286ms 29 May 2025 857th 0xjac 🇨🇭 953 79 286ms 7 Jun 2025 857th targrik 953 79 282ms 29 Jun 2025 857th FlorianCassayre 🇫🇷 953 79 277ms 16 Jul 2025 857th jessesomerville 953 79 287ms 20 Jul 2025 857th GolfingSuccess 🇬🇷 953 79 287ms 22 Aug 2025 857th KasperKivimaeki 🇫🇮 953 79 285ms 25 Sep 2025 857th albanian-laundromat 953 79 308ms 2 Oct 2025 857th cefqrn 953 79 308ms 9 Nov 2025 857th solisolu 953 79 298ms 19 Nov 2025 857th Andrey2001 953 79 302ms 25 Nov 2025 857th CornerMercury 🇬🇧 953 79 288ms 7 Dec 2025 857th CheeseCake628 🇳🇴 953 79 303ms 6 Jan 2026 857th D-MOVE 🇵🇭 953 79 301ms 4 Feb 2026 857th FranklinJiaChen 953 79 264ms 15 Feb 2026 949th rambox11 952 34 10ms 25 Mar 2018 949th frobinsonj 952 34 10ms 28 Jun 2018 949th squadb3 952 34 14ms 11 Oct 2019 949th andersk 🇺🇸 952 34 11ms 21 Mar 2020 949th jwalaszek 952 34 9ms 15 May 2020 949th cywong-amino 🇭🇰 952 34 13ms 3 Jul 2020 949th daisy-lau 952 34 11ms 6 Jul 2020 949th guliyevemil1 🇦🇿 952 34 10ms 3 Feb 2021 949th Darrennchan8 952 34 10ms 23 Aug 2021 949th didion0 🇺🇸 952 34 9ms 14 Feb 2022 949th eranws 952 34 9ms 28 Oct 2022 949th Nicronmil 952 34 9ms 22 Nov 2022 First Prev 881–960 of 9,889 Next Last
