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 400th JRaspass 🇬🇧 391 366 10ms 22 Sep 2022 402nd nico-bachner 389 368 9ms 5 Dec 2020 402nd n3uromanc3r 389 368 10ms 5 Dec 2024 404th CaelRowley 382 374 10ms 7 Feb 2026 405th Michal-Miky-Jankovsky 379 377 9ms 30 Apr 2020 405th ryanocf 379 377 9ms 16 Jan 2024 407th nick4333 378 378 10ms 10 Apr 2024 408th Polyducks 373 383 10ms 7 Feb 2018 409th christensendaniel 370 387 10ms 29 Mar 2023 409th inorganik 370 387 10ms 6 Jul 2023 411th Redbowpatch101 369 388 12ms 11 Aug 2020 412th amit-prabhakar 367 390 10ms 9 Apr 2020 413th luni-moon 🇺🇸 364 393 9ms 12 Jan 2023 414th jchiatt 359 398 10ms 28 Apr 2020 415th irvingswiftj 358 400 11ms 2 Aug 2019 416th Pablo-No 356 402 10ms 15 Jul 2020 417th owen-c-parker 🇺🇸 354 404 10ms 7 Apr 2024 418th MyXoToD 🇩🇪 353 405 11ms 5 May 2025 419th laughingsheep 350 408 11ms 2 Jul 2022 420th kevinley 346 413 9ms 28 Apr 2023 421st jbrry 343 417 10ms 21 Dec 2023 422nd maxmathews 342 418 10ms 16 Dec 2018 423rd 1231234md5 🇨🇳 338 423 10ms 29 Jan 2024 424th tfk333 326 438 10ms 23 Feb 2018 425th kevinnaviapaiva 324 442 11ms 7 Mar 2025 426th ereztaiar 🇮🇱 323 443 9ms 13 Aug 2021 426th iburnez 323 443 13ms 14 Oct 2023 428th VinnyE 321 445 11ms 9 Apr 2020 429th Intevel 🇩🇪 320 447 11ms 7 Jul 2023 430th PoseidonCoder 319 448 10ms 25 Aug 2020 431st steedwards241 318 449 9ms 12 Nov 2020 432nd WilliamSadler 316 452 9ms 16 Sep 2020 433rd Meatballman 314 456 10ms 30 Jul 2022 434th ThibWillFulll 312 459 9ms 14 Jun 2022 435th BatteredBunny 308 464 10ms 5 Oct 2020 436th Csgoodjr 303 472 10ms 22 Jul 2021 437th madeforlosers 296 483 10ms 11 Jan 2024 438th macknive 295 484 9ms 9 Feb 2022 438th benjamin-wunder 295 484 10ms 13 Nov 2022 440th jayanwar 292 489 11ms 6 Nov 2019 441st boomersplayground 292 490 8ms 28 Oct 2024 442nd cubedhuang 287 498 10ms 23 Mar 2022 443rd Cameron-Winney 284 504 10ms 20 Jun 2020 444th devintyler 280 511 10ms 9 Apr 2020 445th PlutonianHacker 278 514 9ms 2 May 2021 446th Smergel 278 515 10ms 19 Jul 2021 447th jnbk 274 522 10ms 9 Jun 2023 448th EliasIsaiah 271 528 9ms 27 Aug 2023 449th WilliamKeating 270 529 9ms 11 Jan 2022 450th Omay238 268 533 11ms 24 Oct 2022 451st JacksonWells 267 536 10ms 25 Feb 2023 452nd Lwilbur0 266 538 9ms 3 Aug 2023 453rd tabinh 259 553 9ms 18 Jul 2019 454th RibeThings 258 554 12ms 9 May 2020 455th Eddc125 256 558 9ms 3 Jan 2023 455th BKGSr2 256 558 10ms 26 Sep 2023 457th ProbablyGallium 250 572 12ms 17 Nov 2017 458th PaulCouthouis 243 589 9ms 27 Apr 2022 459th blueCormorant 242 591 9ms 20 Jul 2024 460th aaronze 🇦🇺 241 594 14ms 16 Apr 2021 461st diggudg 240 597 10ms 9 Dec 2020 462nd renewabristol 230 622 10ms 19 Aug 2020 463rd hochbrian 228 628 9ms 28 Feb 2018 464th hacker19374 225 635 10ms 10 Mar 2023 465th kylemuth 225 636 11ms 4 Jun 2024 466th mtighe 219 653 9ms 18 Aug 2020 467th thisnamewasused 217 660 9ms 13 Aug 2018 468th T-dex 216 663 9ms 18 Feb 2020 469th SJayanthi123 211 678 10ms 21 Apr 2021 470th seanleken 203 704 10ms 16 Oct 2019 471st AngieD8615 202 708 10ms 27 May 2020 472nd HDNidhishree 197 725 10ms 31 Jul 2022 473rd tzuyuan-github 181 789 10ms 17 Jul 2024 474th jakmas 180 796 10ms 23 Jan 2019 475th kmc-shoreline 175 818 10ms 27 Oct 2021 476th TheTechTravis 174 823 9ms 22 Oct 2020 477th akshatj27 🇦🇶 163 879 10ms 11 Jan 2022 477th bac0id 163 879 12ms 26 Jun 2024 479th pandapawskat 86 1,661 11ms 20 Sep 2021 480th theunofficialcoder 12 11,891 9ms 17 Aug 2021 First Prev 401–480 of 489 Next Last
