The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 2 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 241st wenbang24 375 293 10ms 29 Apr 2024 241st cingulataluke 375 293 16ms 3 Jun 2024 241st jtaxen 375 293 10ms 31 Oct 2024 244th vprab 374 294 12ms 10 Dec 2020 245th amishtal 372 296 10ms 2 Dec 2019 245th jhpaques 🇫🇷 372 296 24ms 2 Aug 2022 245th Mikey-Beep 🇬🇧 372 296 12ms 28 Aug 2023 245th jameswmccarty 372 296 11ms 14 Feb 2026 249th starfihs 368 299 10ms 18 Aug 2024 249th CaedenHarper 🇨🇦 368 299 10ms 29 Jul 2025 251st oriphi 367 300 11ms 17 Jun 2019 251st b4dpxl 367 300 10ms 9 Nov 2021 251st omri2001 367 300 11ms 22 Oct 2022 251st nemo4598 367 300 10ms 24 Feb 2026 255th berdzi 363 303 11ms 20 Apr 2022 256th goombado 362 304 10ms 23 Oct 2020 257th eshilo-draper 361 305 10ms 13 Sep 2022 257th Ythaenagor 361 305 10ms 5 Aug 2024 259th vonKrafft 359 306 12ms 25 Mar 2020 259th zt14427 359 306 10ms 28 Feb 2023 259th ridingqwerty 🇺🇸 359 306 13ms 14 Dec 2023 262nd andre-lameirinhas 🇵🇹 358 307 10ms 8 Feb 2020 262nd Bombergames 358 307 12ms 20 Jan 2022 262nd julian-hoelz 358 307 10ms 22 Sep 2024 265th befoster 357 308 10ms 8 May 2021 265th Bonjour27891 🇻🇳 357 308 12ms 13 Mar 2022 265th JOrE20 357 308 10ms 8 Feb 2026 268th ellis-rix 356 309 11ms 28 Oct 2024 269th aazuspan 354 311 11ms 12 Jun 2022 270th CDWimmer 353 312 10ms 8 May 2020 270th dal548 353 312 10ms 12 Jun 2024 272nd mathieurodic 350 314 10ms 21 Oct 2025 273rd firegene 🇮🇪 349 315 11ms 6 days ago 274th dylanjones92 346 318 10ms 24 Jan 2024 275th alangodfrey 344 320 10ms 18 Jun 2019 276th evanrittner 336 327 10ms 18 Nov 2019 276th dotcomstar 336 327 18ms 17 Nov 2021 278th robertovers 332 331 10ms 9 Oct 2023 279th derekthatcher 330 333 11ms 21 Sep 2020 280th bretthat0 328 335 10ms 5 Mar 2022 281st RoscoeSmith 327 336 11ms 22 Nov 2022 282nd martinnorling 🇸🇪 325 338 15ms 4 Feb 2022 283rd Pena86 324 339 10ms 28 Feb 2021 284th eiburns 322 342 11ms 4 Jan 2022 284th Vaekor 322 342 11ms 3 Aug 2023 286th CatsAreFluffy 321 343 10ms 8 Feb 2023 286th Bulmenisaurus 321 343 11ms 1 Mar 2025 288th Jacob-Gendelman 310 355 13ms 27 Jul 2023 289th TJK-S 307 358 11ms 13 Oct 2025 290th trist224 🇫🇷 298 369 11ms 18 Oct 2022 291st Zhenyu-Bo 296 372 12ms 1 Aug 2025 292nd atn-graham 293 376 11ms 27 Jul 2021 293rd jansen-craft 291 378 10ms 30 Jan 2025 294th dcure73 287 383 11ms 18 Jun 2019 295th muser-logiccpu 🇺🇦 286 385 10ms 16 Aug 2025 296th lillian314159 274 401 13ms 24 Jul 2023 297th CoolBvll 272 404 11ms 12 Jun 2025 298th zwxzwxzwx21 272 405 11ms 22 Dec 2023 299th sli-Lut 263 418 11ms 24 Oct 2023 300th NoneTheFewer 259 424 10ms 29 Dec 2025 301st glf818 247 446 10ms 21 Jul 2021 302nd StHagel 246 447 10ms 12 May 2021 302nd r-benson 🇬🇧 246 447 11ms 30 Jan 2023 304th CodyMiner 245 449 11ms 20 Nov 2021 305th ComputerKWasTaken 🇺🇸 243 452 10ms 20 Jan 2025 306th mokymok 🇺🇸 234 470 11ms 23 Jul 2021 307th kevinnaviapaiva 232 475 11ms 25 Feb 2025 308th CyberTapir 231 476 10ms 6 Sep 2024 309th PaulBadour 222 495 10ms 29 Oct 2023 309th dahappy1989 222 495 11ms 5 Nov 2023 311th dillon-duncando 219 503 11ms 19 Nov 2021 312th atazzam 🇺🇸 216 509 11ms 18 Oct 2022 313th PaavoNykanen 210 523 11ms 15 Oct 2022 314th klixel 🇨🇦 210 524 12ms 28 Mar 2025 315th joshuamkite 205 537 12ms 10 Sep 2023 316th KatieLG-Transpiler 🇬🇧 178 618 11ms 23 Jun 2022 317th luftj 173 636 13ms 22 May 2020 318th theonlytruemathnerd 168 653 11ms 11 Jan 2020 319th Andrey2001 147 750 14ms 25 Jan 2026 320th leevi-laitala 120 916 11ms 14 Oct 2022 First Prev 241–320 of 323 Next Last
