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 719th Code-Coder-coder 590 349 9ms 14 Oct 2025 722nd ethandhunt 589 350 10ms 14 Aug 2021 722nd joshuamkite 589 350 11ms 25 Aug 2023 722nd bh2smith 589 350 10ms 8 May 2024 725th Nordle 587 351 16ms 26 Feb 2020 725th reedwilemon 587 351 10ms 10 Jun 2021 725th twocatsinatrenchcoat 587 351 9ms 14 Apr 2022 725th Donkere-vader 587 351 17ms 28 Nov 2022 725th charliegaming 587 351 11ms 4 Oct 2023 725th jtaxen 587 351 16ms 1 Apr 2024 725th syspro86 587 351 11ms 27 Feb 2025 732nd martinbaros 585 352 10ms 19 May 2020 732nd miranyx 585 352 10ms 12 Nov 2023 732nd Einsitein 585 352 11ms 21 Apr 2024 732nd lilymeoww 585 352 10ms 10 Dec 2025 736th RussellDash332 584 353 17ms 20 Nov 2021 736th emirps 584 353 10ms 21 Feb 2023 736th epic-programmer-guy 584 353 11ms 31 Dec 2023 736th raktim10 584 353 11ms 8 Nov 2024 740th pizie11 582 354 11ms 26 Dec 2022 740th DGipe 582 354 10ms 4 Mar 2024 740th duduaugusto123 582 354 10ms 15 Aug 2024 743rd nathanaelbosilia 580 355 17ms 21 Mar 2018 743rd NatriumKlorit 580 355 17ms 21 Mar 2018 743rd lukehatcher 🇺🇸 580 355 10ms 30 Aug 2021 743rd esnethen 580 355 9ms 21 Feb 2023 743rd DukeOfSlovakia 580 355 18ms 27 Feb 2024 743rd cthierfelder 🇲🇨 580 355 11ms 6 Sep 2025 749th Claxon 579 356 10ms 17 Dec 2021 750th Sturalke 577 357 10ms 10 Sep 2021 750th Great-Gamer 577 357 11ms 25 Feb 2022 750th zlohner 577 357 10ms 6 Apr 2022 750th InitialPosition 577 357 11ms 31 Aug 2022 750th HelloYuiYui 577 357 9ms 1 Nov 2023 750th diquah 577 357 10ms 1 Nov 2023 750th ItsEthanDev 577 357 10ms 13 Dec 2023 750th MttWed 577 357 10ms 26 Nov 2024 758th Hazedd 575 358 10ms 10 May 2021 758th FJSFerreira 575 358 10ms 22 May 2021 758th rak1507 🇬🇧 575 358 10ms 28 Oct 2021 758th Ankl1 🇺🇸 575 358 10ms 10 Apr 2025 762nd timchu 574 359 10ms 4 Mar 2021 762nd Alfiecxn 🇬🇧 574 359 10ms 13 Oct 2024 762nd logalex8369 🇺🇸 574 359 16ms 19 Dec 2025 765th ToE42 572 360 10ms 7 Sep 2021 765th vhoudev 572 360 16ms 15 Nov 2021 765th n0es 572 360 10ms 28 Sep 2022 765th trist224 🇫🇷 572 360 10ms 28 Nov 2022 765th BlakeBleem 572 360 17ms 20 Apr 2023 765th Tkidder132 572 360 10ms 28 Aug 2023 771st derekthatcher 571 361 18ms 22 Sep 2020 771st HairyOtter07 571 361 17ms 17 Jun 2021 771st SURAJMITTAL 571 361 9ms 19 Dec 2024 771st SOONwasTaken 571 361 9ms 18 Mar 2025 771st ukeSJTU 571 361 10ms 20 Oct 2025 776th Rosco5555 569 362 10ms 22 Jul 2022 776th PeterDekkers 569 362 10ms 7 Aug 2022 776th specbug 569 362 11ms 30 Nov 2022 779th josephjojoe 567 363 11ms 22 Feb 2021 779th adammehaney 567 363 11ms 25 Sep 2024 781st cadecrandall 566 364 11ms 4 Jun 2020 781st pquline 566 364 10ms 4 Mar 2025 783rd Psirving 564 365 10ms 20 Jul 2020 783rd MLPdiscord 564 365 10ms 7 Jan 2022 783rd BrysonHamlin 🇺🇸 564 365 10ms 8 Apr 2022 783rd jnluke 564 365 11ms 27 Mar 2024 787th boxjelly 563 366 17ms 24 Feb 2021 787th TheSmilingTurtle 563 366 10ms 19 May 2022 787th andrewgopher 563 366 10ms 5 Dec 2022 787th ImpressedByRocks 563 366 36ms 2 May 2025 791st edre 561 367 10ms 3 May 2018 791st jake-gnosis 561 367 10ms 4 Jun 2024 791st Florian-Mt 561 367 9ms 4 Dec 2025 794th Querinus 560 368 10ms 10 Nov 2022 794th jknndy 560 368 10ms 22 Oct 2023 794th CyberTapir 560 368 10ms 6 Sep 2024 794th muser-logiccpu 🇺🇦 560 368 10ms 23 Jul 2025 798th KieranZimmer 558 369 10ms 12 Mar 2022 798th cingulataluke 558 369 10ms 26 Aug 2023 800th Eulentier161 557 370 10ms 1 Nov 2023 First Prev 721–800 of 1,102 Next Last
