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 639th dzybine 619 333 12ms 7 Mar 2022 639th 2xback 619 333 10ms 3 Feb 2023 639th midnattssol 🇸🇪 619 333 10ms 27 Jul 2023 639th ABC00012345 619 333 11ms 21 Feb 2024 639th TheZwierzLF 🇵🇱 619 333 10ms 22 Nov 2025 639th omicron-4 619 333 10ms 31 Jan 2026 647th ciaranmag 617 334 10ms 25 Jan 2019 647th Malin001 617 334 11ms 3 Jan 2020 647th peterprescott 617 334 10ms 18 Nov 2021 647th piano-miles 617 334 10ms 8 Jan 2023 647th wa1ker38552 617 334 11ms 20 May 2023 647th arjunc12 617 334 9ms 28 Dec 2023 653rd frogtd 615 335 18ms 23 Feb 2021 653rd joonaspu 615 335 10ms 3 Jun 2023 653rd xoxo-ily 615 335 10ms 12 Dec 2023 653rd FCORMERAIS 615 335 9ms 4 Mar 2024 657th docd 613 336 9ms 7 Aug 2022 657th AbuzarN 613 336 10ms 22 Nov 2023 659th dahrens 611 337 11ms 4 Jul 2019 659th Darkrizen7 611 337 10ms 4 Apr 2020 659th MrFuzz32 611 337 10ms 9 Feb 2021 659th yourlefthandman 611 337 16ms 17 Aug 2023 663rd oAsAo 609 338 11ms 21 Jan 2020 663rd orifu 609 338 10ms 22 Feb 2021 663rd OppositeShark 609 338 10ms 8 Apr 2022 663rd shreyasminocha 609 338 10ms 20 Sep 2022 663rd underscorelior 609 338 10ms 5 Nov 2022 663rd lcubelongren 609 338 11ms 15 Feb 2024 663rd jameswmccarty 609 338 10ms 2 Jan 2025 670th danielwang5 608 339 17ms 1 Aug 2020 670th wrhm 608 339 10ms 12 Dec 2020 670th imtiendat0311 608 339 18ms 14 Apr 2022 670th Lunik 608 339 10ms 7 Nov 2022 670th Jacob385 608 339 10ms 17 Mar 2024 670th TJK-S 608 339 10ms 4 Nov 2025 676th fynnkroeger 606 340 10ms 17 Mar 2021 676th nishusb 606 340 10ms 15 Jun 2021 676th vuxlee584 🇻🇳 606 340 10ms 15 Aug 2022 676th WillowBee7 606 340 10ms 1 Jun 2023 676th seejaecee 606 340 9ms 7 Feb 2025 676th HunterC14 606 340 11ms 17 Nov 2025 682nd PFischbeck 604 341 10ms 20 Dec 2017 682nd TheYMI 604 341 9ms 19 May 2020 682nd Bananapants22 604 341 9ms 4 Aug 2022 682nd jmmographer 604 341 11ms 11 Nov 2023 682nd jiji7879 604 341 10ms 20 Jun 2025 687th maxumusprime 602 342 12ms 18 Feb 2020 687th GreenyNeko 602 342 10ms 24 Jul 2020 687th foskaos 602 342 10ms 29 Oct 2023 687th ComputerKWasTaken 🇺🇸 602 342 10ms 9 Jun 2024 687th arjunarya1 602 342 9ms 28 Aug 2025 692nd bretthat0 601 343 12ms 28 Dec 2018 692nd aazuspan 601 343 10ms 14 May 2022 692nd KingSkyrock 🇺🇸 601 343 11ms 5 Nov 2022 692nd DrKristoff 601 343 9ms 27 Aug 2024 696th try-except-try-accept 🇹🇭 599 344 11ms 27 Jun 2022 696th agreegious 599 344 16ms 17 Mar 2025 696th Ibozz91 599 344 10ms 8 Jun 2025 699th tcoard 597 345 10ms 21 Feb 2018 699th aposteriorist 🇨🇦 597 345 9ms 15 Feb 2022 699th Natz12 597 345 10ms 20 Jan 2023 699th peternordby 597 345 10ms 23 Nov 2023 699th Pale-Vessel 597 345 10ms 10 Jan 2024 699th RucatJ 597 345 10ms 17 Apr 2025 705th skibur 595 346 10ms 11 Oct 2019 705th sech1p 🇵🇱 595 346 16ms 4 Jul 2021 705th venividovici 595 346 11ms 17 Nov 2021 705th cameronezell 595 346 11ms 30 May 2022 705th smartiel 595 346 10ms 14 Sep 2022 705th S3BzA 595 346 10ms 30 Aug 2023 711th hymanimy 594 347 17ms 22 Nov 2021 711th ehulinsky 🇺🇸 594 347 10ms 7 May 2023 711th DABANANAMAN120 594 347 12ms 2 Aug 2025 714th BrenSchaap 592 348 10ms 22 Oct 2021 714th techieji 592 348 16ms 2 Nov 2021 714th Carlettos1 592 348 10ms 13 Sep 2024 714th poojan124 592 348 10ms 5 Apr 2025 714th 5auru5 592 348 10ms 7 Nov 2025 719th confy 590 349 10ms 25 Oct 2020 719th gcrk 590 349 11ms 2 Mar 2022 First Prev 641–720 of 1,102 Next Last
