The Calendar hole will go live in approximately 13 days. Why not try and solve it 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 241st jiaminglimjm 🇲🇾 449 127 16ms 29 Nov 2019 241st jhpaques 🇫🇷 449 127 17ms 30 Jul 2022 241st mbittner20 449 127 9ms 6 Jul 2024 244th MiranDaniel 🇨🇿 445 128 10ms 30 Aug 2023 244th yuchuehw 445 128 10ms 30 Jan 2024 244th Flekay 🇩🇪 445 128 9ms 11 Jul 2025 247th garrisonhh 442 129 10ms 22 Nov 2020 247th rowboat1 442 129 11ms 22 Jun 2022 247th bthalheim 442 129 16ms 4 Aug 2022 250th AforAmpere 438 130 10ms 21 Feb 2021 250th ComputerKWasTaken 🇺🇸 438 130 9ms 1 Jun 2024 250th CyberTapir 438 130 9ms 6 Sep 2024 250th PickausernamePi 438 130 9ms 17 Dec 2024 250th ffelixm 438 130 10ms 1 Jun 2025 255th Trunksistor 🇫🇷 435 131 10ms 21 Apr 2022 256th lmeuser 432 132 9ms 2 Dec 2017 257th mizuzimu 429 133 10ms 22 Nov 2021 257th LostSyntax21 🇬🇧 429 133 11ms 18 days ago 259th bastienvoirin 🇫🇷 425 134 22ms 24 Apr 2020 259th ehulinsky 🇺🇸 425 134 10ms 6 Nov 2021 261st Andre3582 422 135 9ms 29 Sep 2025 262nd Nikinator2704 416 137 10ms 31 Oct 2025 263rd yokasuretsu 413 138 9ms 23 Apr 2018 264th Awsute 410 139 10ms 20 Aug 2024 265th msbranicky 407 140 10ms 26 Jul 2023 266th Kasci 401 142 76ms 28 Dec 2021 267th twocatsinatrenchcoat 399 143 14ms 25 Nov 2022 267th voidgloom 399 143 16ms 23 Oct 2024 269th LeftPathLane 396 144 9ms 28 Oct 2018 269th simon-thornton_pace 396 144 10ms 11 Oct 2023 271st msrawson 393 145 9ms 30 Aug 2018 271st mcjo163 393 145 10ms 1 Oct 2022 273rd brimstonetrader 388 147 9ms 10 Mar 2025 274th leon-w 383 149 10ms 5 Jan 2019 275th zoemarschner 377 151 10ms 16 May 2022 275th LukasFolwarczny 🇨🇿 377 151 9ms 15 Sep 2022 277th amishtal 375 152 10ms 5 Dec 2019 277th michelebastione 🇮🇹 375 152 9ms 19 Feb 2020 279th MaxElf999 370 154 9ms 15 Dec 2022 280th feherd 368 155 10ms 4 Mar 2022 281st rschwa6308 🇺🇸 356 160 17ms 2 Apr 2019 281st fajost 356 160 10ms 26 Sep 2020 281st r-i-c-e 356 160 10ms 8 Jul 2023 281st NerdyMcNerd42 356 160 9ms 20 Jul 2024 285th JunkIce 354 161 10ms 4 Oct 2024 286th wazawoo 350 163 10ms 23 Oct 2018 286th wrhm 350 163 16ms 14 Dec 2020 288th evanrittner 345 165 20ms 5 Jun 2021 289th Upload-and-View 🇺🇦 343 166 16ms 23 Jul 2025 290th eiburns 339 168 9ms 8 May 2023 290th Fanrco 339 168 10ms 31 Aug 2023 292nd Altrul 335 170 11ms 17 Dec 2020 293rd tomh1012 329 173 10ms 5 Nov 2020 294th TobyBoyne 🇬🇧 326 175 9ms 1 Jun 2019 295th P-Quentin 🇫🇷 324 176 35ms 9 Aug 2022 296th alangodfrey 311 183 11ms 30 Jan 2019 296th j3mak 311 183 9ms 17 Jan 2024 296th jfallon1997 311 183 9ms 27 Sep 2024 296th robin-scragg 311 183 9ms 15 Jul 2025 300th myleopard 308 185 10ms 15 Oct 2021 301st orifu 303 188 10ms 7 Mar 2021 302nd hjcafaroUC 298 191 10ms 1 Aug 2020 303rd DrPrettyman 295 193 10ms 5 Jul 2023 304th SimonPeatman 277 206 10ms 3 Feb 2019 305th Starwort 🇬🇧 275 207 11ms 22 Mar 2019 306th JOrE20 🇺🇸 271 210 14ms 2 days ago 307th Andrey2001 259 220 10ms 18 days ago 308th Re-Adventures 🇮🇳 254 224 9ms 28 Dec 2020 309th Crankbrother 247 231 11ms 16 Sep 2020 310th dzshn 236 242 9ms 25 Nov 2020 311th Omega65536 🇩🇪 224 254 10ms 6 Jan 2021 312th decorator-factory 213 268 9ms 26 May 2019 313th greggelong 207 275 10ms 17 Jan 2020 314th Vaekor 197 290 10ms 15 Nov 2020 315th ethandhunt 195 293 10ms 20 Jul 2021 316th j21marshall 194 294 10ms 7 Aug 2020 317th potato-jackson 188 303 12ms 3 Mar 2021 318th Haksell 🇦🇶 186 307 10ms 2 Jun 2019 319th hardlyBearable 183 311 16ms 31 May 2019 320th mothcolada 🇺🇸 171 333 10ms 25 Mar 2021 First Prev 241–320 of 399 Next Last
