The Gray Code Decoder and Gray Code Encoder holes will go live in approximately 8 days. Why not try and solve them ahead of time?
Sierpiński Triangle in Python 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 241st RedzGoose 🇦🇺 483 118 9ms 14 Oct 2024 242nd CutSandstone 475 120 17ms 8 Jul 2024 243rd Anonymousellama21 471 121 11ms 24 May 2022 243rd roguh 🇬🇹 471 121 10ms 22 Feb 2024 245th adamnielson42 🇺🇸 460 124 9ms 11 Aug 2023 245th xbxbxb007 460 124 9ms 22 Jan 2024 247th TheZappie 452 126 9ms 6 Jul 2022 248th jiaminglimjm 🇲🇾 449 127 16ms 29 Nov 2019 248th jhpaques 🇫🇷 449 127 16ms 30 Jul 2022 248th mbittner20 449 127 9ms 6 Jul 2024 251st MiranDaniel 🇨🇿 445 128 10ms 30 Aug 2023 251st yuchuehw 445 128 9ms 30 Jan 2024 253rd garrisonhh 442 129 10ms 22 Nov 2020 253rd rowboat1 442 129 9ms 22 Jun 2022 253rd bthalheim 442 129 16ms 4 Aug 2022 256th AforAmpere 438 130 10ms 21 Feb 2021 256th ComputerKWasTaken 🇺🇸 438 130 10ms 1 Jun 2024 256th CyberTapir 438 130 9ms 6 Sep 2024 256th PickausernamePi 438 130 9ms 17 Dec 2024 256th ffelixm 438 130 9ms 1 Jun 2025 261st Trunksistor 🇫🇷 435 131 9ms 21 Apr 2022 262nd lmeuser 432 132 10ms 2 Dec 2017 263rd mizuzimu 429 133 10ms 22 Nov 2021 263rd LostSyntax21 🇬🇧 429 133 10ms 30 Nov 2025 265th bastienvoirin 🇫🇷 425 134 17ms 24 Apr 2020 265th ehulinsky 🇺🇸 425 134 10ms 6 Nov 2021 267th Andre3582 422 135 10ms 29 Sep 2025 268th Nikinator2704 416 137 10ms 31 Oct 2025 269th yokasuretsu 413 138 9ms 23 Apr 2018 269th Andrey2001 413 138 13ms 11 hours ago 271st Awsute 410 139 10ms 20 Aug 2024 272nd msbranicky 407 140 10ms 26 Jul 2023 273rd Kasci 401 142 74ms 28 Dec 2021 274th twocatsinatrenchcoat 399 143 9ms 25 Nov 2022 274th voidgloom 399 143 16ms 23 Oct 2024 276th LeftPathLane 396 144 9ms 28 Oct 2018 276th simon-thornton_pace 396 144 9ms 11 Oct 2023 278th msrawson 393 145 10ms 30 Aug 2018 278th mcjo163 393 145 10ms 1 Oct 2022 280th brimstonetrader 388 147 10ms 10 Mar 2025 281st leon-w 383 149 11ms 5 Jan 2019 282nd zoemarschner 377 151 9ms 16 May 2022 282nd LukasFolwarczny 🇨🇿 377 151 10ms 15 Sep 2022 284th amishtal 375 152 10ms 5 Dec 2019 284th michelebastione 🇮🇹 375 152 9ms 19 Feb 2020 286th MaxElf999 370 154 9ms 15 Dec 2022 287th feherd 368 155 10ms 4 Mar 2022 288th rschwa6308 🇺🇸 356 160 9ms 2 Apr 2019 288th fajost 356 160 10ms 26 Sep 2020 288th r-i-c-e 356 160 10ms 8 Jul 2023 288th NerdyMcNerd42 356 160 10ms 20 Jul 2024 292nd JunkIce 354 161 9ms 4 Oct 2024 293rd wazawoo 350 163 9ms 23 Oct 2018 293rd wrhm 350 163 16ms 14 Dec 2020 295th evanrittner 345 165 16ms 5 Jun 2021 296th muser-logiccpu 🇺🇦 343 166 16ms 23 Jul 2025 297th eiburns 339 168 10ms 8 May 2023 297th Fanrco 339 168 9ms 31 Aug 2023 299th Altrul 335 170 9ms 17 Dec 2020 300th tomh1012 329 173 9ms 5 Nov 2020 301st TobyBoyne 🇬🇧 326 175 9ms 1 Jun 2019 302nd P-Quentin 🇫🇷 324 176 33ms 9 Aug 2022 303rd alangodfrey 311 183 10ms 30 Jan 2019 303rd j3mak 311 183 10ms 17 Jan 2024 303rd jfallon1997 311 183 9ms 27 Sep 2024 303rd robin-scragg 311 183 9ms 15 Jul 2025 307th myleopard 308 185 10ms 15 Oct 2021 308th orifu 303 188 10ms 7 Mar 2021 309th hjcafaroUC 298 191 10ms 1 Aug 2020 310th DrPrettyman 295 193 10ms 5 Jul 2023 311th SimonPeatman 277 206 10ms 3 Feb 2019 312th Starwort 🇬🇧 275 207 10ms 22 Mar 2019 313th Re-Adventures 🇮🇳 254 224 10ms 28 Dec 2020 314th Crankbrother 247 231 10ms 16 Sep 2020 315th dzshn 236 242 9ms 25 Nov 2020 316th Omega65536 🇩🇪 224 254 10ms 6 Jan 2021 317th decorator-factory 213 268 9ms 26 May 2019 318th greggelong 207 275 10ms 17 Jan 2020 319th Vaekor 197 290 10ms 15 Nov 2020 320th ethandhunt 195 293 10ms 20 Jul 2021 First Prev 241–320 of 406 Next Last
