The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 4 days. Why not try and solve them ahead of time?
Star Wars Opening Crawl in all languages 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 stefangimmillaro 552 391 11ms 20 Jun 2022 322nd albanian-laundromat 550 392 11ms 20 Oct 2025 323rd dokutan 549 6,689 8ms 20 Jun 2025 324th adoxography 548 283 33ms 21 Jul 2021 325th Yewzir 🇧🇪 546 395 17ms 3 May 2023 325th adamnielson42 🇺🇸 546 395 12ms 27 Nov 2023 325th edsrzf 🇳🇿 546 395 11ms 30 Dec 2025 328th emgordon154 544 285 39ms 18 Nov 2024 329th msbranicky 542 593 295ms 4 May 2024 330th voytxt 🇨🇿 541 353 11ms 30 Aug 2023 331st luuumine 🇫🇷 541 399 12ms 2 Dec 2025 332nd CaedenHarper 🇨🇦 541 573 426ms 21 Oct 2025 333rd aksyristos 538 401 12ms 34 hours ago 334th postie77 538 576 424ms 14 Aug 2024 335th HumanoidCPU 534 404 11ms 31 Oct 2024 336th Feniske 🇫🇷 533 356 419ms 7 Nov 2023 337th ArmaanAS 533 405 11ms 4 May 2022 337th CatsAreFluffy 533 405 12ms 24 Dec 2022 339th Sakisan 🇧🇪 530 466 173ms 6 May 2022 340th sleepyStick 529 408 11ms 15 Jul 2022 341st yzhs 🇩🇪 529 467 163ms 27 Jul 2021 342nd Romain-1 🇫🇷 526 410 10ms 4 May 2022 343rd Thestralos 524 412 11ms 24 Feb 2023 344th alexsave 523 365 11ms 19 Jan 2026 345th neel11235813 520 298 35ms 7 Jan 2024 346th msbranicky 517 417 17ms 12 Jul 2023 347th LostSyntax21 🇬🇧 515 301 38ms 19 Jan 2025 348th yzhs 🇩🇪 515 419 17ms 7 Jun 2022 348th JOrE20 515 419 11ms 2 Dec 2025 350th marcin7Cd 514 420 16ms 4 May 2021 351st AlephSquirrel 514 506 10ms 21 Oct 2024 352nd Yewzir 🇧🇪 512 381 668ms 5 Feb 2024 352nd dokutan 512 381 721ms 14 Feb 2026 354th mbittner20 512 421 11ms 27 May 2023 354th mrmena 🇦🇺 512 421 11ms 4 May 2024 356th heanyang1 511 438 2ms 24 May 2025 357th acollett89 510 374 10ms 8 Aug 2025 358th xkacer 🇨🇿 508 612 471ms 4 May 2021 359th BREMAUCY 🇫🇷 506 426 11ms 25 Aug 2025 360th galloj 🇨🇿 505 427 11ms 6 Sep 2022 361st janbehrens 🇩🇪 503 368 25ms 29 May 2021 362nd martinnorling 🇸🇪 501 431 11ms 4 May 2022 363rd HumanoidCPU 498 392 558ms 31 Oct 2024 364th AstroOrbis 498 433 11ms 25 Feb 2026 365th razetime 497 312 35ms 4 May 2021 366th madex 🇩🇪 497 434 11ms 12 days ago 367th p-vf 🇨🇭 497 624 439ms 4 May 2022 368th richard-oelze 🇩🇪 496 435 17ms 8 May 2021 369th FlorianCassayre 🇫🇷 494 437 19ms 23 Sep 2023 370th Alex-x90 🇺🇸 490 440 12ms 25 Oct 2023 371st elgan65536 🇺🇸 487 443 11ms 4 Oct 2024 372nd premun 🇨🇿 485 639 478ms 18 Nov 2022 373rd scpchicken 🇵🇼 484 290 213ms 5 Apr 2022 374th CatsAreFluffy 482 405 771ms 15 Jan 2024 375th wh3n3v3r 🇨🇿 481 449 11ms 13 Nov 2024 375th TheZwierzLF 🇵🇱 481 449 11ms 9 Jan 2026 377th emgordon154 478 205 55ms 22 Apr 2025 378th za3k 478 451 11ms 15 Dec 2022 379th tomh1012 476 652 440ms 12 Nov 2025 380th croc54 473 456 19ms 16 Jan 2025 381st inverseLorentz 🇦🇺 470 459 11ms 4 May 2024 382nd msbranicky 468 417 877ms 16 Jan 2024 383rd tobeannouncd 468 528 160ms 8 Jan 2024 384th snoozingnewt 🇨🇦 462 571 111ms 10 Feb 2026 385th BREMAUCY 🇫🇷 460 424 816ms 7 May 2024 386th Babafaba 460 469 19ms 21 Nov 2025 387th krcs 🇵🇱 458 414 361ms 5 May 2022 388th Yewzir 🇧🇪 455 543 3,155ms 3 Aug 2023 389th KatieLG 🇬🇧 451 478 17ms 6 Apr 2025 390th Bubbler-4 444 250 3ms 8 Feb 2023 391st JohannaWarnqvist 444 486 11ms 12 Feb 2022 391st codereport 🇨🇦 444 486 20ms 4 May 2025 393rd aliakseikalosha 440 705 454ms 4 May 2021 394th TheZwierzLF 🇵🇱 433 358 40ms 9 Jan 2026 395th juliansiebert 🇩🇪 432 439 451ms 11 Dec 2023 396th kordrun 428 446 12ms 4 May 2023 397th KatieLG 🇬🇧 427 455 1,398ms 3 May 2021 398th cure-honey 🇯🇵 426 876 49ms 18 Jun 2021 399th janbehrens 🇩🇪 424 287 4ms 1 Jan 2022 400th Babafaba 424 460 811ms 21 Nov 2025 First Prev 321–400 of 584 Next Last