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 PowerShell 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 77th Andrey2001 730 37 318ms 25 Jan 2026 82nd tofuweasel 711 38 233ms 3 Jun 2020 82nd jdallma 711 38 231ms 4 Jun 2020 82nd xadozuk 711 38 233ms 8 Jun 2020 82nd J0ram 711 38 289ms 11 Jun 2020 82nd rvdnieuwendijk 🇳🇱 711 38 252ms 19 Jun 2020 82nd lahell 711 38 250ms 2 Jul 2020 82nd theentropic 711 38 243ms 5 Aug 2020 82nd jcheritat 711 38 251ms 6 Sep 2020 82nd marcin7Cd 711 38 273ms 12 Jan 2021 82nd markroloff 711 38 255ms 28 Jan 2021 82nd ytaki0801 🇯🇵 711 38 259ms 19 Jun 2021 82nd Arnaud-beep 🇫🇷 711 38 253ms 1 Sep 2022 82nd MCausc78 🇺🇦 711 38 240ms 29 Dec 2022 82nd sojumasterGA 711 38 228ms 31 Jan 2023 96th zeeceetech 692 39 255ms 3 Jun 2020 96th WatchBenGo 692 39 253ms 9 Jun 2020 96th sgaltair 692 39 244ms 9 Mar 2022 96th Skwerl23 692 39 268ms 6 Feb 2023 96th duckgoop 692 39 278ms 9 Mar 2023 101st rjmholt 675 40 254ms 3 Jun 2020 101st Agazoth 675 40 282ms 8 Jun 2020 101st paulhey 675 40 261ms 25 May 2021 101st Natanaelel 🇸🇪 675 40 268ms 4 Oct 2021 101st shellbertt 🇨🇦 675 40 261ms 2 Dec 2021 101st KevinLaux 675 40 240ms 6 Nov 2022 101st astdefu 675 40 234ms 11 Dec 2022 108th Flobois 659 41 254ms 23 Jul 2024 109th PowerShellToday 643 42 276ms 3 Jun 2020 109th thlac 643 42 225ms 3 Jun 2020 109th acolytegerm 643 42 258ms 14 Jun 2020 109th justinkwork 643 42 244ms 28 Jul 2020 109th rholliday 643 42 239ms 22 Feb 2021 109th Betuaredead 643 42 214ms 4 Jan 2023 109th Dyadic-Device 643 42 264ms 22 Jan 2026 116th ntatalov 628 43 224ms 4 Jun 2022 117th HCRitter 🇩🇪 614 44 260ms 16 Oct 2023 117th dokutan 614 44 231ms 27 Jul 2024 117th KasperKivimaeki 🇫🇮 614 44 255ms 18 Dec 2025 120th gjh71 🇳🇱 600 45 295ms 29 Dec 2020 120th DaCuteRaccoon 600 45 273ms 8 Apr 2022 120th Unknownuserfrommars 600 45 230ms 20 Nov 2024 123rd kborowinski 587 46 246ms 4 Jun 2020 123rd stahler 587 46 240ms 6 Jun 2020 123rd raphaelimahorn 587 46 271ms 10 Aug 2021 123rd Alex-x90 🇺🇸 587 46 267ms 2 Jan 2023 127th X3troc 563 48 209ms 5 Jun 2020 127th hdformat 563 48 228ms 6 Jun 2020 127th Clebam 🇫🇷 563 48 243ms 7 Aug 2022 127th USSChris 563 48 229ms 27 Dec 2024 131st jorgeasaurus 551 49 253ms 6 Jun 2020 131st JoeBigToe 551 49 236ms 14 Jun 2020 131st harperse 551 49 257ms 4 May 2023 131st eiburns 551 49 309ms 7 Sep 2023 131st JPRuskin 🇬🇧 551 49 230ms 24 Apr 2024 136th rdbartram 540 50 250ms 3 Jun 2020 136th KatieLG 🇬🇧 540 50 246ms 29 Nov 2020 136th sech1p 🇵🇱 540 50 241ms 25 Jun 2021 136th PowershellKnut 🇳🇴 540 50 235ms 4 Jul 2022 140th desecaw13 529 51 228ms 24 Jan 2025 141st krzydoug 519 52 233ms 5 Jun 2020 141st ehmiiz 🇸🇪 519 52 252ms 21 Jun 2022 141st owen-c-parker 🇺🇸 519 52 236ms 28 Nov 2022 144th northvandrew 509 53 233ms 4 Jun 2020 144th CheeseCake628 🇳🇴 509 53 260ms 11 Mar 2023 144th madeforlosers 509 53 245ms 22 Nov 2024 147th AJLindner 500 54 267ms 6 Aug 2020 148th TravisEz13 491 55 237ms 5 Jun 2020 149th ashtraypettingzoo 🇺🇸 482 56 236ms 16 Feb 2023 150th epic-programmer-guy 474 57 241ms 29 Dec 2023 150th cingulataluke 474 57 256ms 3 Jun 2024 150th BSharp2217 474 57 273ms 11 Jan 2025 153rd natebru 466 58 223ms 3 Jun 2020 154th lilyyy411 458 59 228ms 10 Sep 2021 154th MichaelMBradley 🇨🇦 458 59 248ms 21 Mar 2022 154th Adix-null 🇱🇹 458 59 250ms 4 Jul 2023 157th PSGruss 450 60 243ms 5 Jun 2020 157th kenmich 450 60 231ms 3 May 2023 159th resoNathan 443 61 254ms 3 May 2024 160th oceko 435 62 217ms 26 Nov 2022 First Prev 81–160 of 191 Next Last