The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 3 days. Why not try and solve them ahead of time?
99 Bottles of Beer 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 394th RodAlc24 🇪🇸 696 296 10ms 27 Feb 2026 402nd jotslo 🇬🇧 694 297 12ms 14 Jul 2019 402nd b4dpxl 694 297 9ms 14 Nov 2019 402nd lamba09 694 297 16ms 20 Aug 2020 402nd petroselo 694 297 11ms 9 Apr 2022 402nd jm600 694 297 10ms 14 Apr 2022 402nd nstearns96 🇬🇧 694 297 10ms 10 Dec 2022 402nd Edjyzod 694 297 10ms 7 Mar 2023 402nd taesungh 694 297 10ms 15 Oct 2023 402nd askipio 694 297 9ms 22 Nov 2023 402nd j3mak 694 297 10ms 16 Jan 2024 402nd Mathrew2012 694 297 10ms 30 Aug 2024 402nd damoose717 694 297 16ms 23 May 2025 414th sombreWeb 691 298 11ms 5 Nov 2020 414th chbea1 691 298 17ms 30 Mar 2021 414th asheeri 691 298 10ms 15 Aug 2021 414th Starwort 🇬🇧 691 298 10ms 4 Dec 2022 414th qwjhvbxi 691 298 10ms 5 Feb 2024 414th estrawitch 691 298 10ms 11 days ago 420th surbainczyk 689 299 10ms 20 Jul 2022 420th oneWaveAdrian 🇩🇪 689 299 10ms 14 Oct 2022 420th PaulMWeiser 689 299 11ms 14 Feb 2023 420th Yewzir 🇧🇪 689 299 19ms 12 Apr 2023 420th fenix-bear 689 299 10ms 3 Jul 2023 420th DavidVadnais 689 299 10ms 15 Feb 2024 420th gallium-gonzollium 689 299 10ms 24 Aug 2024 420th Pyroan 689 299 11ms 19 Apr 2025 428th leny-mi 687 300 10ms 27 Jul 2020 428th gardarjuto 687 300 11ms 16 Nov 2020 428th Re-Adventures 🇮🇳 687 300 10ms 20 Mar 2021 428th mrmena 🇦🇺 687 300 10ms 27 May 2021 428th eoinfennessy 687 300 10ms 23 Jul 2021 428th jwfiredragon 687 300 11ms 15 May 2025 428th maxficco 687 300 11ms 27 Sep 2025 435th SniperSmiley 🇺🇸 684 301 11ms 1 Jul 2021 435th ramsay 684 301 10ms 8 Aug 2022 435th alexhroom 684 301 9ms 1 Sep 2022 435th Dundunbra 🇳🇴 684 301 9ms 18 Sep 2022 439th HassanAliKadhem 🇧🇭 682 302 17ms 5 Jan 2022 439th PhysicDev 🇫🇷 682 302 11ms 5 Sep 2022 439th za3k 682 302 9ms 8 Oct 2022 439th en4rab 682 302 9ms 7 May 2023 439th fbe 682 302 10ms 18 May 2023 444th starsandspirals 680 303 13ms 9 Jul 2020 444th goldstraw 680 303 10ms 30 Nov 2021 444th thiccaxe 680 303 10ms 2 Oct 2022 444th tails618 680 303 10ms 10 Sep 2023 444th PixelSoftwareStudios 🇺🇸 680 303 10ms 15 Jun 2024 444th resoNathan 680 303 10ms 8 Jul 2024 444th wh3n3v3r 🇨🇿 680 303 11ms 8 Nov 2024 444th NoneTheFewer 680 303 10ms 5 Jan 2026 452nd adesanjo 678 304 11ms 16 Jun 2018 452nd JackM25 678 304 17ms 28 Sep 2020 452nd MurrayHS 678 304 17ms 28 Sep 2020 452nd hidude562 678 304 10ms 19 Oct 2022 452nd CatsAreFluffy 678 304 10ms 18 Dec 2022 452nd Stanworld80 678 304 13ms 6 Dec 2023 452nd davidheineman 678 304 17ms 1 Jul 2024 452nd themoonisacheese 678 304 19ms 3 Mar 2025 460th GG2024 675 305 11ms 6 Aug 2019 460th Pie42 675 305 17ms 7 Apr 2020 460th ihalseide 🇺🇸 675 305 17ms 5 Jun 2021 460th phpboyscout 675 305 16ms 10 Feb 2023 460th tknight00 675 305 17ms 9 Jan 2024 460th imelxr 🇮🇱 675 305 10ms 16 Aug 2024 460th hippopotam00sehead 🇨🇦 675 305 11ms 9 Sep 2024 460th AodhanDalton 675 305 16ms 27 Nov 2024 468th 130N35 673 306 17ms 28 Jan 2020 468th vonKrafft 673 306 10ms 24 Mar 2020 468th NerdyMcNerd42 673 306 11ms 14 Oct 2022 468th anclrii 673 306 10ms 14 Feb 2023 468th tvcv901 673 306 10ms 22 Mar 2023 468th jatloe 673 306 10ms 28 Jan 2024 468th yokasuretsu 673 306 10ms 10 Jan 2025 468th megargayu 673 306 17ms 14 Aug 2025 476th mrmavana 671 307 10ms 16 Dec 2019 476th haydenridd 671 307 10ms 20 Oct 2020 476th markbyrne 671 307 10ms 20 Oct 2020 476th htquach 671 307 11ms 26 Jun 2022 476th ShiniGangrade 671 307 13ms 14 Jul 2022 First Prev 401–480 of 1,103 Next Last
