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 640th bastienvoirin 🇫🇷 619 333 9ms 28 Nov 2020 640th dzybine 619 333 12ms 7 Mar 2022 640th 2xback 619 333 10ms 3 Feb 2023 640th midnattssol 🇸🇪 619 333 10ms 27 Jul 2023 640th ABC00012345 619 333 11ms 21 Feb 2024 640th TheZwierzLF 🇵🇱 619 333 10ms 22 Nov 2025 640th omicron-4 619 333 10ms 31 Jan 2026 648th ciaranmag 617 334 10ms 25 Jan 2019 648th Malin001 617 334 11ms 3 Jan 2020 648th peterprescott 617 334 10ms 18 Nov 2021 648th piano-miles 617 334 10ms 8 Jan 2023 648th wa1ker38552 617 334 11ms 20 May 2023 648th arjunc12 617 334 9ms 28 Dec 2023 654th frogtd 615 335 18ms 23 Feb 2021 654th joonaspu 615 335 10ms 3 Jun 2023 654th xoxo-ily 615 335 10ms 12 Dec 2023 654th FCORMERAIS 615 335 9ms 4 Mar 2024 658th docd 613 336 9ms 7 Aug 2022 658th AbuzarN 613 336 10ms 22 Nov 2023 660th dahrens 611 337 11ms 4 Jul 2019 660th Darkrizen7 611 337 10ms 4 Apr 2020 660th MrFuzz32 611 337 10ms 9 Feb 2021 660th yourlefthandman 611 337 16ms 17 Aug 2023 664th oAsAo 609 338 11ms 21 Jan 2020 664th orifu 609 338 10ms 22 Feb 2021 664th OppositeShark 609 338 10ms 8 Apr 2022 664th shreyasminocha 609 338 10ms 20 Sep 2022 664th underscorelior 609 338 10ms 5 Nov 2022 664th lcubelongren 609 338 11ms 15 Feb 2024 664th jameswmccarty 609 338 10ms 2 Jan 2025 671st danielwang5 608 339 17ms 1 Aug 2020 671st wrhm 608 339 10ms 12 Dec 2020 671st imtiendat0311 608 339 18ms 14 Apr 2022 671st Lunik 608 339 10ms 7 Nov 2022 671st Jacob385 608 339 10ms 17 Mar 2024 671st TJK-S 608 339 10ms 4 Nov 2025 677th fynnkroeger 606 340 10ms 17 Mar 2021 677th nishusb 606 340 10ms 15 Jun 2021 677th vuxlee584 🇻🇳 606 340 10ms 15 Aug 2022 677th WillowBee7 606 340 10ms 1 Jun 2023 677th seejaecee 606 340 9ms 7 Feb 2025 677th HunterC14 606 340 11ms 17 Nov 2025 683rd PFischbeck 604 341 10ms 20 Dec 2017 683rd TheYMI 604 341 9ms 19 May 2020 683rd Bananapants22 604 341 9ms 4 Aug 2022 683rd jmmographer 604 341 11ms 11 Nov 2023 683rd jiji7879 604 341 10ms 20 Jun 2025 688th maxumusprime 602 342 12ms 18 Feb 2020 688th GreenyNeko 602 342 10ms 24 Jul 2020 688th foskaos 602 342 10ms 29 Oct 2023 688th ComputerKWasTaken 🇺🇸 602 342 10ms 9 Jun 2024 688th arjunarya1 602 342 9ms 28 Aug 2025 693rd bretthat0 601 343 12ms 28 Dec 2018 693rd aazuspan 601 343 10ms 14 May 2022 693rd KingSkyrock 🇺🇸 601 343 11ms 5 Nov 2022 693rd DrKristoff 601 343 9ms 27 Aug 2024 697th try-except-try-accept 🇹🇭 599 344 11ms 27 Jun 2022 697th agreegious 599 344 16ms 17 Mar 2025 697th Ibozz91 599 344 10ms 8 Jun 2025 700th tcoard 597 345 10ms 21 Feb 2018 700th aposteriorist 🇨🇦 597 345 9ms 15 Feb 2022 700th Natz12 597 345 10ms 20 Jan 2023 700th peternordby 597 345 10ms 23 Nov 2023 700th Pale-Vessel 597 345 10ms 10 Jan 2024 700th RucatJ 597 345 10ms 17 Apr 2025 706th skibur 595 346 10ms 11 Oct 2019 706th sech1p 🇵🇱 595 346 16ms 4 Jul 2021 706th venividovici 595 346 11ms 17 Nov 2021 706th cameronezell 595 346 11ms 30 May 2022 706th smartiel 595 346 10ms 14 Sep 2022 706th S3BzA 595 346 10ms 30 Aug 2023 712th hymanimy 594 347 17ms 22 Nov 2021 712th ehulinsky 🇺🇸 594 347 10ms 7 May 2023 712th DABANANAMAN120 594 347 12ms 2 Aug 2025 715th BrenSchaap 592 348 10ms 22 Oct 2021 715th techieji 592 348 16ms 2 Nov 2021 715th Carlettos1 592 348 10ms 13 Sep 2024 715th poojan124 592 348 10ms 5 Apr 2025 715th 5auru5 592 348 10ms 7 Nov 2025 720th confy 590 349 10ms 25 Oct 2020 First Prev 641–720 of 1,103 Next Last
