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?
brainfuck in Python 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 GulgDev 285 368 15ms 21 Mar 2023 322nd hellwue 283 371 18ms 25 Jun 2024 323rd ian-h-chamberlain 🇺🇸 280 375 31ms 5 Sep 2020 323rd NanduBC 280 375 17ms 18 Mar 2021 325th tomh1012 279 377 17ms 28 Oct 2020 326th 0dyse 276 380 16ms 23 Apr 2025 327th skps2010 275 382 14ms 2 Jan 2019 328th AforAmpere 274 383 15ms 20 Sep 2023 329th hymanimy 273 384 11ms 5 Dec 2021 329th DrPiranoid 273 384 14ms 2 Oct 2022 331st Andrey135296 273 385 28ms 23 Dec 2022 332nd RiedleroD 272 386 12ms 19 Oct 2022 333rd l-donovan 270 389 18ms 1 Feb 2024 334th ballaire 269 391 13ms 27 Jan 2024 335th adesanjo 268 392 15ms 21 Jun 2018 336th yuchuehw 267 393 184ms 8 Jan 2024 337th WalrusesAreAwesome 263 399 18ms 24 Mar 2025 338th ArmaanAS 263 400 19ms 5 Apr 2021 338th Fracture17 263 400 15ms 15 Apr 2023 340th celiendonze 🇨🇭 262 401 16ms 25 Apr 2023 341st DrPrettyman 260 404 13ms 4 Jul 2023 342nd lmallez 257 408 18ms 14 Jun 2019 343rd xenufo 257 409 14ms 18 Nov 2020 344th mrmena 🇦🇺 254 413 16ms 29 Mar 2024 345th Peter-Lande 254 414 12ms 5 Jun 2022 345th zt14427 254 414 17ms 28 Dec 2023 347th Cynthaer 246 426 14ms 6 Dec 2019 348th croc54 243 432 12ms 27 Dec 2024 349th GoodClover 🇬🇧 241 435 15ms 11 Nov 2020 350th vonKrafft 233 451 15ms 27 Mar 2020 351st twocatsinatrenchcoat 232 453 457ms 20 Jul 2022 352nd zuparnowa 225 466 23ms 8 Feb 2019 352nd henrytranter 225 466 22ms 20 Sep 2019 354th EnisEfe0 223 471 14ms 18 May 2025 355th theonlytruemathnerd 218 481 22ms 21 Jul 2020 356th Andrey2001 213 494 26ms 12 days ago 357th TimSvensson 212 496 16ms 10 Apr 2025 358th ArchFin 208 504 13ms 27 Feb 2025 359th CyberTapir 208 505 12ms 30 Aug 2024 360th mbittner20 206 509 13ms 27 Jul 2024 361st zyc-2024 🇨🇳 203 517 34ms 5 Oct 2024 362nd PikalaxALT 201 522 13ms 21 May 2022 363rd atazzam 🇺🇸 201 523 22ms 27 Feb 2023 364th 404dcd 191 549 16ms 21 Sep 2019 364th Stev51 191 549 14ms 14 Dec 2025 366th kurkale6ka 166 634 13ms 15 Dec 2025 367th Bananapants22 162 647 17ms 26 Aug 2022 368th Haksell 🇦🇶 154 682 13ms 22 Feb 2023 369th NoneTheFewer 152 692 14ms 25 Dec 2025 370th Unknownuserfrommars 144 729 12ms 5 Aug 2025 371st loganmacdougall 🇨🇦 142 741 18ms 19 Nov 2021 372nd MichaelClasby0 🇬🇧 127 830 155ms 15 Oct 2023 373rd kkoenig 111 949 13ms 22 Dec 2023 374th osmith93 105 999 12ms 13 Dec 2022 375th jacobtaxen 96 1,089 13ms 24 Oct 2021 376th jalbertgordon 96 1,091 13ms 23 Oct 2023 377th taha-daneshmand 85 1,241 15ms 2 Oct 2024 378th roupiq 🇵🇱 84 1,243 14ms 20 Feb 2024 379th joshuamkite 84 1,244 15ms 20 Aug 2023 380th AidanWalter 70 1,492 12ms 3 Jan 2025 381st Zhenyu-Bo 44 2,360 13ms 1 Aug 2025 First Prev 321–381 of 381
