The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Sierpiński Triangle 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 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 Chars Time Submitted 321st j21marshall 185 292 10ms 7 Aug 2020 322nd mothcolada 🇺🇸 173 313 10ms 25 Mar 2021 323rd codingisgreatbutiamnot 167 324 9ms 20 Jul 2024 324th vonKrafft 164 330 10ms 25 Mar 2020 324th simplylu 164 330 10ms 6 Jun 2020 326th galloj 🇨🇿 160 338 10ms 2 Feb 2021 327th breeezi 159 339 10ms 12 Feb 2020 328th dillon-duncando 154 350 10ms 3 Dec 2021 329th CodeAltF4 136 396 10ms 15 Apr 2021 330th j-Ewan 135 400 10ms 3 Mar 2022 331st 71c 134 404 11ms 8 Apr 2018 331st CRHillman 134 404 10ms 7 Sep 2018 331st davitf 134 404 9ms 30 Oct 2018 331st retrohun 134 404 10ms 21 Dec 2018 331st shibacho 🇯🇵 134 404 9ms 24 Apr 2019 331st ElevatorShaft 134 404 9ms 29 Jun 2019 331st silversquirl 134 404 10ms 14 Aug 2019 331st minecire 134 404 9ms 20 Nov 2019 331st AreYouW 134 404 10ms 6 Dec 2019 331st 0xddom 134 404 10ms 18 Dec 2019 331st volpi-m 🇫🇷 134 404 10ms 22 Dec 2019 331st mortimervonchappuis 134 404 9ms 19 Mar 2020 331st ispahr 134 404 10ms 28 Jul 2020 331st Jamil62 134 404 9ms 15 Sep 2020 331st Secozzi 134 404 11ms 14 Mar 2021 331st Wodinthemighty 134 404 9ms 28 Mar 2021 331st kurkale6ka 134 404 10ms 30 May 2021 331st theunofficialcoder 134 404 11ms 2 Aug 2021 331st omkarjois 134 404 10ms 17 Oct 2021 331st BrenSchaap 134 404 9ms 22 Oct 2021 331st cooljoseph1 134 404 9ms 6 May 2022 331st CuboidRaptor 🇨🇦 134 404 9ms 27 May 2022 331st AdamHe17 134 404 10ms 31 May 2022 331st k3w1k0d3r 134 404 10ms 27 Jun 2022 331st tri1212 🇻🇳 134 404 10ms 15 Jul 2022 331st DrPiranoid 134 404 10ms 10 Oct 2022 331st PaulMWeiser 134 404 10ms 28 Feb 2023 331st ozzypossie 134 404 9ms 26 May 2023 331st diquah 134 404 9ms 1 Nov 2023 331st mikehanus 134 404 9ms 21 Nov 2023 331st qwjhvbxi 134 404 13ms 8 Feb 2024 331st Bit125 134 404 10ms 27 Mar 2024 331st Brain-Boy-53 134 404 9ms 27 Jun 2024 331st markusgraube 134 404 9ms 1 Jul 2024 331st ValentinCassayre 134 404 9ms 22 Jul 2024 331st madeforlosers 134 404 9ms 9 May 2025 331st yahelihol 134 404 10ms 10 Jun 2025 331st noanabeshima 134 404 9ms 8 Jul 2025 331st katss2 134 404 10ms 17 Aug 2025 331st setop 134 404 10ms 6 Oct 2025 331st luuumine 🇫🇷 134 404 10ms 17 Oct 2025 372nd milotoor 133 405 9ms 19 Apr 2020 372nd BekhruzSNiyazov 133 405 10ms 27 Feb 2021 372nd BenBanerjeeRichards 133 405 10ms 2 May 2022 372nd midnattssol 🇸🇪 133 405 12ms 16 May 2022 372nd aazuspan 133 405 11ms 6 Sep 2022 372nd GWStuart 133 405 9ms 26 Dec 2022 372nd SeanJxie 133 405 10ms 7 Jan 2024 379th dddthedark 133 406 11ms 10 Jan 2018 380th BelgianSalamander 132 408 10ms 13 Aug 2021 380th christensendaniel 132 408 10ms 14 May 2024 380th yhm138 132 408 9ms 16 Feb 2025 383rd estomagordo 🇳🇱 132 409 14ms 3 Aug 2019 383rd gradylynn 132 409 9ms 21 Dec 2021 385th bretthat0 130 415 10ms 11 Nov 2017 385th sshanks49 130 415 10ms 26 Feb 2020 385th StHagel 130 415 9ms 25 Aug 2020 385th bac0id 130 415 10ms 25 Jan 2021 385th GeneralTwi 130 415 9ms 28 Apr 2022 385th KatieLG-Transpiler 🇬🇧 130 415 10ms 23 Jun 2022 385th jaxmattfair 🇺🇸 130 415 9ms 14 Jan 2023 385th Yareeeema 130 415 9ms 12 Sep 2023 385th zt14427 130 415 10ms 18 Nov 2023 394th gigaprofisi 🇺🇸 129 417 9ms 9 Mar 2025 395th DaleNaci 116 467 9ms 29 Aug 2018 396th Zhenyu-Bo 115 469 9ms 1 Aug 2025 397th AidanWalter 112 481 10ms 3 Jan 2025 398th atazzam 🇺🇸 112 482 10ms 4 Apr 2022 399th kevinnaviapaiva 112 484 10ms 15 Feb 2025 400th malre 66 815 12ms 29 May 2021 First Prev 321–400 of 400
