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 chars. 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 Chars Time Submitted 321st lukasmoellerch 469 305 11ms 15 Jul 2019 321st hvanderdys 469 305 10ms 11 Dec 2019 323rd patterson-tom 467 306 11ms 9 Sep 2020 323rd d-capponi 🇦🇷 467 306 10ms 9 Jan 2021 323rd mcculloughjchris 467 306 10ms 31 Oct 2022 323rd HenryTy83 467 306 10ms 4 Dec 2022 323rd vyx777 467 306 11ms 11 Jan 2025 328th bobesa 464 308 11ms 13 Oct 2017 329th vonKrafft 463 309 10ms 25 Mar 2020 329th theentropic 463 309 9ms 31 Jul 2020 329th TheNormaIPerson 463 309 10ms 1 Apr 2023 332nd jaredcrystal 🇺🇸 461 310 14ms 13 Sep 2018 332nd aaronshaf 461 310 10ms 12 Dec 2020 334th Likexy 460 311 9ms 4 Jun 2021 334th cooljoebob64 460 311 10ms 23 Jun 2021 336th WouterK12 458 312 9ms 5 Dec 2020 336th martynbiz 458 312 11ms 1 Apr 2021 336th tristan-f-r 458 312 10ms 23 Feb 2022 339th 7f-galaxii 457 313 9ms 6 Dec 2022 340th SamirHodzic 454 315 10ms 12 Oct 2018 340th Mageshbabu90 454 315 10ms 9 Dec 2020 340th ArmaanAS 454 315 10ms 22 Feb 2022 343rd hf2186 453 316 10ms 9 May 2018 343rd ptforness 453 316 12ms 30 Dec 2022 345th Jimmy-b36 451 317 11ms 29 Oct 2022 345th BenRavioli 451 317 13ms 7 Jun 2023 347th hippopotam00sehead 🇨🇦 450 318 11ms 12 Sep 2024 348th joedia 448 319 10ms 25 Jul 2024 349th emilymalecbrown 447 320 9ms 14 Jan 2020 350th prestosilver 🇺🇸 445 321 12ms 16 days ago 351st ibanezplayer 444 322 11ms 23 Jul 2019 351st adrianbgo 444 322 11ms 14 Mar 2023 353rd pitreforten 441 324 9ms 28 Sep 2020 354th mobibluman 439 326 11ms 31 Aug 2021 355th SArpnt 437 327 9ms 31 May 2021 355th skillerbg 437 327 9ms 21 Dec 2022 357th marekMin 436 328 9ms 25 Jun 2019 357th L1Wulf 436 328 10ms 4 Feb 2022 359th esecx 🇯🇵 435 329 9ms 19 Mar 2024 360th robertDurst 433 330 9ms 29 Nov 2017 360th stadamdoki 433 330 9ms 20 Apr 2021 360th sophuric 433 330 11ms 18 Oct 2021 360th apokryfos 433 330 10ms 4 Aug 2023 364th OmegaB0t 432 331 11ms 13 Jun 2018 365th KaeruCT 429 333 10ms 8 Nov 2020 366th blucky36 427 335 11ms 27 Feb 2019 367th skailish 426 336 10ms 18 Jul 2020 368th Scoutboy06 424 337 10ms 9 Dec 2019 369th msbranicky 422 339 9ms 8 Sep 2023 369th yAlphabet 422 339 9ms 14 Nov 2023 371st spencersolberg 421 340 9ms 2 Sep 2021 372nd lukalotl 419 341 11ms 25 May 2021 372nd brokenhd 419 341 10ms 2 Sep 2021 372nd null-tangent 419 341 13ms 4 Aug 2022 375th nlovell 418 342 9ms 7 Sep 2022 375th dukeaccent 🇫🇮 418 342 10ms 24 Nov 2022 375th DaCuteRaccoon 418 342 10ms 24 Jan 2023 378th koscheiundead 417 343 10ms 15 Mar 2023 378th SebassNoob 417 343 9ms 3 Aug 2025 380th jamespeilunli 416 344 10ms 29 Apr 2022 381st tonyOreglia 412 347 9ms 22 Mar 2020 381st iSickos 412 347 11ms 31 Aug 2023 383rd zaneshaw 411 348 10ms 27 Apr 2022 383rd Ja3far-Cat 411 348 9ms 12 Jan 2023 385th simongredal 409 350 13ms 20 Jun 2023 385th mntdn 409 350 10ms 17 Jun 2025 385th Florian-Mt 409 350 10ms 4 Dec 2025 388th Alice-Cheshire 406 352 9ms 26 Feb 2018 388th marcus-gomes-v 🇧🇷 406 352 10ms 14 Dec 2021 390th d0ct0r4r6a 405 353 10ms 11 Apr 2020 391st markbyrne 403 355 9ms 21 Nov 2021 391st CLaszlo 403 355 11ms 19 Apr 2022 391st Ploverums 403 355 10ms 14 Sep 2022 394th mlwade 398 359 9ms 6 Jun 2019 395th genius257 396 361 14ms 20 Mar 2018 396th con-cs 395 362 10ms 11 Oct 2021 396th alabhyajindal 395 362 10ms 3 Apr 2025 398th ReversedK 394 363 10ms 15 Sep 2019 398th gavmck 394 363 10ms 22 Oct 2021 400th tmatos2245 391 366 9ms 29 Jun 2021 First Prev 321–400 of 489 Next Last
