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 JavaScript 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 321st vonKrafft 647 309 10ms 25 Mar 2020 321st theentropic 647 309 9ms 31 Jul 2020 321st TheNormaIPerson 647 309 10ms 1 Apr 2023 324th jaredcrystal 🇺🇸 645 310 14ms 13 Sep 2018 324th aaronshaf 645 310 10ms 12 Dec 2020 326th Likexy 643 311 9ms 4 Jun 2021 326th cooljoebob64 643 311 10ms 23 Jun 2021 328th WouterK12 641 312 9ms 5 Dec 2020 328th martynbiz 641 312 11ms 1 Apr 2021 328th tristan-f-r 641 312 10ms 23 Feb 2022 331st 7f-galaxii 639 313 9ms 6 Dec 2022 332nd SamirHodzic 635 315 10ms 12 Oct 2018 332nd Mageshbabu90 635 315 10ms 9 Dec 2020 332nd ArmaanAS 635 315 10ms 22 Feb 2022 335th hf2186 633 316 10ms 9 May 2018 335th ptforness 633 316 12ms 30 Dec 2022 337th Jimmy-b36 631 317 11ms 29 Oct 2022 337th BenRavioli 631 317 13ms 7 Jun 2023 337th charliegaming 631 317 10ms 3 Oct 2023 340th hippopotam00sehead 🇨🇦 629 318 11ms 12 Sep 2024 341st joedia 627 319 10ms 25 Jul 2024 342nd emilymalecbrown 625 320 9ms 14 Jan 2020 343rd prestosilver 🇺🇸 623 321 12ms 16 days ago 344th ibanezplayer 621 322 11ms 23 Jul 2019 344th adrianbgo 621 322 11ms 14 Mar 2023 346th pitreforten 617 324 9ms 28 Sep 2020 347th mobibluman 613 326 11ms 31 Aug 2021 348th SArpnt 612 327 9ms 31 May 2021 348th skillerbg 612 327 9ms 21 Dec 2022 350th marekMin 610 328 9ms 25 Jun 2019 350th L1Wulf 610 328 10ms 4 Feb 2022 352nd esecx 🇯🇵 608 329 9ms 19 Mar 2024 353rd robertDurst 606 330 9ms 29 Nov 2017 353rd stadamdoki 606 330 9ms 20 Apr 2021 353rd sophuric 606 330 11ms 18 Oct 2021 353rd apokryfos 606 330 10ms 4 Aug 2023 357th OmegaB0t 604 331 11ms 13 Jun 2018 358th KaeruCT 601 333 10ms 8 Nov 2020 359th blucky36 597 335 11ms 27 Feb 2019 360th skailish 595 336 10ms 18 Jul 2020 361st Scoutboy06 593 337 10ms 9 Dec 2019 362nd msbranicky 590 339 9ms 8 Sep 2023 362nd yAlphabet 590 339 9ms 14 Nov 2023 364th spencersolberg 588 340 9ms 2 Sep 2021 365th lukalotl 587 341 11ms 25 May 2021 365th brokenhd 587 341 10ms 2 Sep 2021 365th null-tangent 587 341 13ms 4 Aug 2022 368th nlovell 585 342 9ms 7 Sep 2022 368th dukeaccent 🇫🇮 585 342 10ms 24 Nov 2022 368th DaCuteRaccoon 585 342 10ms 24 Jan 2023 371st koscheiundead 583 343 10ms 15 Mar 2023 371st SebassNoob 583 343 9ms 3 Aug 2025 373rd jamespeilunli 581 344 10ms 29 Apr 2022 374th tonyOreglia 576 347 9ms 22 Mar 2020 374th iSickos 576 347 11ms 31 Aug 2023 376th zaneshaw 575 348 10ms 27 Apr 2022 376th Ja3far-Cat 575 348 9ms 12 Jan 2023 378th simongredal 571 350 13ms 20 Jun 2023 378th mntdn 571 350 10ms 17 Jun 2025 378th Florian-Mt 571 350 10ms 4 Dec 2025 381st Alice-Cheshire 568 352 9ms 26 Feb 2018 381st marcus-gomes-v 🇧🇷 568 352 10ms 14 Dec 2021 383rd d0ct0r4r6a 567 353 10ms 11 Apr 2020 384th markbyrne 563 355 9ms 21 Nov 2021 384th CLaszlo 563 355 11ms 19 Apr 2022 384th Ploverums 563 355 10ms 14 Sep 2022 387th mlwade 557 359 9ms 6 Jun 2019 388th genius257 554 361 14ms 20 Mar 2018 389th con-cs 552 362 10ms 11 Oct 2021 389th alabhyajindal 552 362 10ms 3 Apr 2025 391st ReversedK 551 363 10ms 15 Sep 2019 391st gavmck 551 363 10ms 22 Oct 2021 393rd tmatos2245 546 366 9ms 29 Jun 2021 393rd JRaspass 🇬🇧 546 366 10ms 22 Sep 2022 395th nico-bachner 543 368 9ms 5 Dec 2020 395th n3uromanc3r 543 368 10ms 5 Dec 2024 397th joseprio 538 372 10ms 18 Jul 2020 398th tigerdan2 🇩🇪 536 373 10ms 30 Nov 2025 399th CaelRowley 535 374 10ms 7 Feb 2026 400th Michal-Miky-Jankovsky 531 377 9ms 30 Apr 2020 First Prev 321–400 of 489 Next Last
