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?
Rock-paper-scissors-Spock-lizard 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 239th jtaxen 375 293 10ms 31 Oct 2024 242nd vprab 374 294 12ms 10 Dec 2020 243rd amishtal 372 296 10ms 2 Dec 2019 243rd jhpaques 🇫🇷 372 296 24ms 2 Aug 2022 243rd Mikey-Beep 🇬🇧 372 296 12ms 28 Aug 2023 243rd jameswmccarty 372 296 11ms 14 Feb 2026 247th starfihs 368 299 10ms 18 Aug 2024 247th CaedenHarper 🇨🇦 368 299 10ms 29 Jul 2025 249th oriphi 367 300 11ms 17 Jun 2019 249th b4dpxl 367 300 10ms 9 Nov 2021 249th omri2001 367 300 11ms 22 Oct 2022 249th nemo4598 367 300 10ms 24 Feb 2026 253rd berdzi 363 303 11ms 20 Apr 2022 254th goombado 362 304 10ms 23 Oct 2020 255th eshilo-draper 361 305 10ms 13 Sep 2022 255th Ythaenagor 361 305 10ms 5 Aug 2024 257th vonKrafft 359 306 12ms 25 Mar 2020 257th zt14427 359 306 10ms 28 Feb 2023 257th ridingqwerty 🇺🇸 359 306 13ms 14 Dec 2023 260th andre-lameirinhas 🇵🇹 358 307 10ms 8 Feb 2020 260th Bombergames 358 307 12ms 20 Jan 2022 260th julian-hoelz 358 307 10ms 22 Sep 2024 263rd befoster 357 308 10ms 8 May 2021 263rd Bonjour27891 🇻🇳 357 308 12ms 13 Mar 2022 263rd JOrE20 357 308 10ms 8 Feb 2026 266th ellis-rix 356 309 11ms 28 Oct 2024 267th aazuspan 354 311 11ms 12 Jun 2022 268th CDWimmer 353 312 10ms 8 May 2020 268th dal548 353 312 10ms 12 Jun 2024 270th mathieurodic 350 314 10ms 21 Oct 2025 271st firegene 🇮🇪 349 315 11ms 3 days ago 272nd dylanjones92 346 318 10ms 24 Jan 2024 273rd alangodfrey 344 320 10ms 18 Jun 2019 274th aksyristos 342 322 11ms 10 days ago 275th evanrittner 336 327 10ms 18 Nov 2019 275th dotcomstar 336 327 18ms 17 Nov 2021 277th robertovers 332 331 10ms 9 Oct 2023 278th derekthatcher 330 333 11ms 21 Sep 2020 279th bretthat0 328 335 10ms 5 Mar 2022 280th RoscoeSmith 327 336 11ms 22 Nov 2022 281st martinnorling 🇸🇪 325 338 15ms 4 Feb 2022 282nd Pena86 324 339 10ms 28 Feb 2021 283rd eiburns 322 342 11ms 4 Jan 2022 283rd Vaekor 322 342 11ms 3 Aug 2023 285th CatsAreFluffy 321 343 10ms 8 Feb 2023 285th Bulmenisaurus 321 343 11ms 1 Mar 2025 287th Jacob-Gendelman 310 355 13ms 27 Jul 2023 288th TJK-S 307 358 11ms 13 Oct 2025 289th trist224 🇫🇷 298 369 11ms 18 Oct 2022 290th Zhenyu-Bo 296 372 12ms 1 Aug 2025 291st atn-graham 293 376 11ms 27 Jul 2021 292nd jansen-craft 291 378 10ms 30 Jan 2025 293rd dcure73 287 383 11ms 18 Jun 2019 294th muser-logiccpu 🇺🇦 286 385 10ms 16 Aug 2025 295th lillian314159 274 401 13ms 24 Jul 2023 296th CoolBvll 272 404 11ms 12 Jun 2025 297th zwxzwxzwx21 272 405 11ms 22 Dec 2023 298th sli-Lut 263 418 11ms 24 Oct 2023 299th NoneTheFewer 259 424 10ms 29 Dec 2025 300th glf818 247 446 10ms 21 Jul 2021 301st StHagel 246 447 10ms 12 May 2021 301st r-benson 🇬🇧 246 447 11ms 30 Jan 2023 303rd CodyMiner 245 449 11ms 20 Nov 2021 304th ComputerKWasTaken 🇺🇸 243 452 10ms 20 Jan 2025 305th mokymok 🇺🇸 234 470 11ms 23 Jul 2021 306th kevinnaviapaiva 232 475 11ms 25 Feb 2025 307th CyberTapir 231 476 10ms 6 Sep 2024 308th PaulBadour 222 495 10ms 29 Oct 2023 308th dahappy1989 222 495 11ms 5 Nov 2023 310th dillon-duncando 219 503 11ms 19 Nov 2021 311th atazzam 🇺🇸 216 509 11ms 18 Oct 2022 312th PaavoNykanen 210 523 11ms 15 Oct 2022 313th klixel 🇨🇦 210 524 12ms 28 Mar 2025 314th joshuamkite 205 537 12ms 10 Sep 2023 315th KatieLG-Transpiler 🇬🇧 178 618 11ms 23 Jun 2022 316th luftj 173 636 13ms 22 May 2020 317th theonlytruemathnerd 168 653 11ms 11 Jan 2020 318th Andrey2001 147 750 14ms 25 Jan 2026 319th leevi-laitala 120 916 11ms 14 Oct 2022 320th AidanWalter 115 955 13ms 3 Jan 2025 First Prev 241–320 of 322 Next Last
