The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 5 hours. Why not try and solve them ahead of time?
Star Wars Opening Crawl in all languages 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 jared-hughes 416 300 11ms 5 Apr 2022 322nd Flekay 🇩🇪 413 302 12ms 19 Jun 2025 323rd CaedenHarper 🇨🇦 411 303 31ms 16 Nov 2025 324th ahmetdemirag 🇨🇾 406 307 19ms 21 Oct 2024 325th TimCurwick 🇺🇸 402 288 335ms 6 May 2021 326th bzijlema 🇳🇱 398 313 44ms 14 Jan 2026 327th knutae 🇳🇴 395 316 10ms 29 Jun 2021 327th qpwoeirut 395 316 11ms 19 Sep 2025 329th kcinnu 🇱🇹 395 346 10ms 15 May 2024 330th CaedenHarper 🇨🇦 394 782 443ms 9 days ago 331st janbehrens 🇩🇪 393 317 14ms 17 Jun 2023 332nd jared-hughes 389 268 39ms 19 Sep 2022 333rd InigoK 🇺🇸 388 321 34ms 26 Aug 2025 334th voytxt 🇨🇿 388 353 10ms 30 Aug 2023 335th underlein 386 797 601ms 4 May 2023 336th StefanHabel 🇨🇦 385 324 10ms 20 Apr 2024 337th Andriamanitra 🇫🇮 381 274 36ms 4 May 2023 338th AlephSquirrel 381 316 709ms 21 Jan 2024 339th AlephSquirrel 381 327 11ms 7 Jan 2023 340th fuzzylojik-golf 🇺🇸 375 332 31ms 5 days ago 341st alexsave 375 365 11ms 19 Jan 2026 342nd CedricGebistorf 373 334 11ms 6 Mar 2022 343rd adoxography 368 283 33ms 21 Jul 2021 344th Pyroan 368 339 11ms 16 May 2025 345th amollberg 🇸🇪 367 340 11ms 4 Feb 2022 346th emgordon154 366 285 39ms 18 Nov 2024 347th acollett89 366 374 10ms 8 Aug 2025 348th Indivicivet 365 342 50ms 26 Oct 2021 349th prplz 🇦🇺 361 345 12ms 29 Jun 2021 350th Drew-j-Smith 360 346 32ms 4 May 2022 351st Sora1248 🇩🇪 360 612 2ms 4 May 2023 352nd eiburns 359 347 11ms 28 Sep 2023 353rd OllieBoyne 🇬🇧 358 348 12ms 18 Apr 2022 353rd PaulMWeiser 358 348 11ms 4 Mar 2023 355th AlephSquirrel 357 506 10ms 21 Oct 2024 356th resoNathan 356 350 11ms 30 Apr 2024 357th fgrosshans 🇫🇷 355 351 11ms 12 Jul 2024 358th neel11235813 350 298 35ms 7 Jan 2024 359th neihousaigaai 349 357 10ms 9 Apr 2022 360th LostSyntax21 🇬🇧 346 301 38ms 19 Jan 2025 361st janbehrens 🇩🇪 346 704 2,977ms 20 Nov 2022 362nd Lv0Sys 🇵🇱 345 361 11ms 5 Dec 2025 363rd nullie 344 362 11ms 16 Jun 2022 364th janbehrens 🇩🇪 340 648 2ms 22 Dec 2023 365th mcjo163 337 370 10ms 14 Jul 2021 365th quimey 337 370 12ms 4 May 2023 367th razetime 334 312 35ms 4 May 2021 368th cefqrn 332 376 11ms 4 May 2023 369th Feniske 🇫🇷 325 356 419ms 7 Nov 2023 370th TobyBoyne 🇬🇧 322 387 19ms 4 May 2022 370th andre-lameirinhas 🇵🇹 322 387 11ms 5 May 2023 372nd stefangimmillaro 319 391 11ms 20 Jun 2022 373rd janbehrens 🇩🇪 318 287 4ms 1 Jan 2022 374th adamnielson42 🇺🇸 316 395 12ms 27 Nov 2023 374th edsrzf 🇳🇿 316 395 11ms 30 Dec 2025 376th MeWhenI 🇻🇦 312 343 9ms 27 May 2024 377th luuumine 🇫🇷 312 399 12ms 2 Dec 2025 378th aksyristos 311 401 11ms 5 days ago 379th ArmaanAS 308 405 11ms 4 May 2022 379th CatsAreFluffy 308 405 12ms 24 Dec 2022 381st kordrun 307 446 9ms 4 May 2023 382nd sleepyStick 306 408 11ms 15 Jul 2022 383rd Romain-1 🇫🇷 304 410 10ms 4 May 2022 384th T193R-W00D5 303 254 56ms 27 May 2025 385th Thestralos 303 412 11ms 24 Feb 2023 386th MeWhenI 🇻🇦 301 1,147 382ms 18 Oct 2021 387th msbranicky 299 417 17ms 12 Jul 2023 388th CatsAreFluffy 297 405 771ms 15 Jan 2024 389th marcin7Cd 297 420 16ms 4 May 2021 390th mbittner20 296 421 11ms 27 May 2023 390th mrmena 🇦🇺 296 421 11ms 4 May 2024 392nd BREMAUCY 🇫🇷 293 426 11ms 25 Aug 2025 393rd galloj 🇨🇿 292 427 11ms 6 Sep 2022 394th TheZwierzLF 🇵🇱 291 358 40ms 9 Jan 2026 395th Lv0Sys 🇵🇱 290 471 11ms 5 Dec 2025 396th martinnorling 🇸🇪 289 431 11ms 4 May 2022 397th msbranicky 288 417 877ms 16 Jan 2024 398th AstroOrbis 288 433 11ms 25 Feb 2026 399th richard-oelze 🇩🇪 287 435 17ms 8 May 2021 400th BREMAUCY 🇫🇷 284 424 816ms 7 May 2024 First Prev 321–400 of 581 Next Last
