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?
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 475th TrentGlimp 671 307 9ms 3 Sep 2022 475th TheBlupper 671 307 10ms 8 Nov 2022 475th HumanoidCPU 671 307 10ms 26 Apr 2024 475th kistlerf 🇨🇭 671 307 11ms 19 May 2025 485th michelebastione 🇮🇹 669 308 10ms 25 Sep 2019 485th 8davidb8 669 308 11ms 11 Jun 2020 485th jiaminglimjm 🇲🇾 669 308 11ms 5 Jul 2020 485th VilBoub 669 308 11ms 17 Apr 2022 485th badboj40 669 308 10ms 18 Jan 2023 485th markus-rekdal 669 308 18ms 2 Sep 2023 485th azure-blondon 669 308 9ms 10 Dec 2023 485th Trusly 669 308 10ms 24 Feb 2024 485th Europe2048 669 308 9ms 28 Nov 2024 485th nulzo 669 308 10ms 17 Oct 2025 495th evanrittner 667 309 11ms 26 Feb 2021 495th wrose100 667 309 10ms 17 Apr 2022 495th johndixon01 667 309 11ms 20 Sep 2022 495th sbyrne51 667 309 10ms 1 Oct 2022 495th SirFireball3521 667 309 10ms 4 Feb 2023 495th cloudberry-DeaDev 667 309 18ms 23 Dec 2023 495th drochom 667 309 10ms 19 Jun 2024 502nd biotinker 665 310 9ms 22 Feb 2018 502nd katehuds 665 310 9ms 22 Oct 2020 502nd lucasvanmol 665 310 10ms 3 Mar 2021 502nd raketexyz 665 310 17ms 29 Dec 2021 502nd benjibon 665 310 34ms 14 Nov 2024 502nd zobertke 665 310 10ms 22 May 2025 508th evanram 662 311 17ms 4 Feb 2020 508th jess2187 662 311 11ms 4 Feb 2020 508th DarkTemplar5 662 311 10ms 20 Feb 2020 508th pvilimas 662 311 9ms 16 Feb 2021 508th jmerle 🇳🇱 662 311 10ms 24 Jan 2023 508th LocNgu 662 311 10ms 16 Jul 2023 508th kejcao 🇨🇦 662 311 17ms 10 May 2024 515th suchwise 660 312 10ms 29 Oct 2019 515th LlamaLad7 🇬🇧 660 312 10ms 15 Mar 2020 515th loserface69 660 312 10ms 15 Mar 2020 515th Giridesh 660 312 17ms 8 Apr 2022 515th Bulmenisaurus 660 312 10ms 21 Feb 2023 515th zpiatt 660 312 10ms 31 Aug 2023 515th kurkale6ka 660 312 11ms 27 Nov 2023 515th chartung17 660 312 10ms 14 Jan 2024 523rd JBcoding 658 313 19ms 7 Sep 2020 523rd Thinthiner 658 313 16ms 7 Sep 2020 523rd bminahan73 658 313 9ms 27 Jun 2022 523rd S-Ruban 658 313 11ms 27 Feb 2023 523rd Dejgz 658 313 10ms 11 Sep 2023 523rd m42km 658 313 10ms 9 Oct 2023 523rd dev-Thae 658 313 16ms 6 Nov 2023 523rd martion2007 658 313 10ms 5 Aug 2024 523rd ninjaprawn 658 313 10ms 21 days ago 532nd DarkBlueWall 656 314 13ms 29 Apr 2020 532nd Sir-Fancy 656 314 10ms 8 Oct 2020 532nd karhuthebear 656 314 10ms 11 May 2022 532nd RZ781 656 314 10ms 19 Nov 2023 532nd JamesTadleyGreen 656 314 11ms 20 Jun 2024 532nd SodiumFluoride 656 314 10ms 14 Sep 2024 532nd goodrichster 656 314 9ms 18 Dec 2024 532nd WillowWispy 656 314 10ms 13 Apr 2025 532nd ffelixm 656 314 10ms 22 May 2025 532nd ElieDeBrauwer 656 314 10ms 11 Oct 2025 542nd RyanCarrusca 654 315 11ms 21 Feb 2019 542nd volpi-m 🇫🇷 654 315 17ms 30 Aug 2020 542nd doppelar0n 🇩🇪 654 315 10ms 2 Oct 2022 542nd Anthony-Williams-06 654 315 15ms 29 Nov 2022 542nd Alithinar 654 315 10ms 15 May 2025 542nd iliao2345 654 315 17ms 9 Jul 2025 542nd edward-Han1024 654 315 10ms 18 days ago 549th andre-lameirinhas 🇵🇹 652 316 15ms 22 Apr 2019 549th amishtal 652 316 20ms 28 Nov 2019 549th cbondurant 652 316 10ms 10 May 2021 549th CheeseCake628 🇳🇴 652 316 32ms 19 Mar 2023 549th Shynif 652 316 11ms 21 Feb 2024 549th Masttest 652 316 10ms 29 Nov 2025 555th kypi 650 317 10ms 18 Feb 2020 555th Kasci 650 317 23ms 28 Dec 2021 557th lmeuser 648 318 11ms 2 Dec 2017 557th jdidion 648 318 11ms 22 Feb 2018 557th estomagordo 🇳🇱 648 318 9ms 9 Dec 2021 557th 1337-man 648 318 10ms 1 Feb 2022 First Prev 481–560 of 1,102 Next Last
