The Calendar hole will go live in approximately 12 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 321st mothcolada 🇺🇸 171 333 10ms 25 Mar 2021 322nd breeezi 167 341 10ms 12 Feb 2020 323rd dillon-duncando 162 352 10ms 3 Dec 2021 324th firegene 🇮🇪 156 366 10ms 25 Nov 2021 325th CodeAltF4 143 398 10ms 15 Apr 2021 326th galloj 🇨🇿 141 403 10ms 2 Feb 2021 327th codingisgreatbutiamnot 139 410 9ms 20 Jul 2024 328th vonKrafft 133 428 10ms 25 Mar 2020 329th Zhenyu-Bo 121 471 9ms 1 Aug 2025 330th atazzam 🇺🇸 118 482 10ms 4 Apr 2022 331st AidanWalter 118 483 10ms 3 Jan 2025 332nd simplylu 116 492 10ms 6 Jun 2020 333rd kevinnaviapaiva 114 498 10ms 15 Feb 2025 334th j-Ewan 101 562 10ms 3 Mar 2022 335th 71c 101 566 11ms 8 Apr 2018 335th CRHillman 101 566 10ms 7 Sep 2018 335th davitf 101 566 9ms 30 Oct 2018 335th retrohun 101 566 10ms 21 Dec 2018 335th shibacho 🇯🇵 101 566 9ms 24 Apr 2019 335th ElevatorShaft 101 566 9ms 29 Jun 2019 335th silversquirl 101 566 10ms 14 Aug 2019 335th minecire 101 566 9ms 20 Nov 2019 335th AreYouW 101 566 10ms 6 Dec 2019 335th 0xddom 101 566 10ms 18 Dec 2019 335th volpi-m 🇫🇷 101 566 10ms 22 Dec 2019 335th mortimervonchappuis 101 566 9ms 19 Mar 2020 335th ispahr 101 566 10ms 28 Jul 2020 335th Jamil62 101 566 9ms 15 Sep 2020 335th Secozzi 101 566 11ms 14 Mar 2021 335th Wodinthemighty 101 566 9ms 28 Mar 2021 335th kurkale6ka 101 566 10ms 30 May 2021 335th theunofficialcoder 101 566 11ms 2 Aug 2021 335th omkarjois 101 566 10ms 17 Oct 2021 335th BrenSchaap 101 566 9ms 22 Oct 2021 335th cooljoseph1 101 566 9ms 6 May 2022 335th CuboidRaptor 🇨🇦 101 566 9ms 27 May 2022 335th AdamHe17 101 566 10ms 31 May 2022 335th k3w1k0d3r 101 566 10ms 27 Jun 2022 335th tri1212 🇻🇳 101 566 10ms 15 Jul 2022 335th DrPiranoid 101 566 10ms 10 Oct 2022 335th PaulMWeiser 101 566 10ms 28 Feb 2023 335th ozzypossie 101 566 9ms 26 May 2023 335th diquah 101 566 9ms 1 Nov 2023 335th mikehanus 101 566 9ms 21 Nov 2023 335th qwjhvbxi 101 566 13ms 8 Feb 2024 335th Bit125 101 566 10ms 27 Mar 2024 335th Brain-Boy-53 101 566 9ms 27 Jun 2024 335th markusgraube 101 566 9ms 1 Jul 2024 335th ValentinCassayre 101 566 9ms 22 Jul 2024 335th madeforlosers 101 566 9ms 9 May 2025 335th yahelihol 101 566 10ms 10 Jun 2025 335th noanabeshima 101 566 9ms 8 Jul 2025 335th katss2 101 566 10ms 17 Aug 2025 335th setop 101 566 10ms 6 Oct 2025 335th luuumine 🇫🇷 101 566 10ms 17 Oct 2025 376th milotoor 101 567 9ms 19 Apr 2020 376th BekhruzSNiyazov 101 567 10ms 27 Feb 2021 376th BenBanerjeeRichards 101 567 10ms 2 May 2022 376th midnattssol 🇸🇪 101 567 12ms 16 May 2022 376th aazuspan 101 567 11ms 6 Sep 2022 376th GWStuart 101 567 9ms 26 Dec 2022 376th SeanJxie 101 567 10ms 7 Jan 2024 383rd dddthedark 100 568 11ms 10 Jan 2018 384th BelgianSalamander 100 570 10ms 13 Aug 2021 384th christensendaniel 100 570 10ms 14 May 2024 384th yhm138 100 570 9ms 16 Feb 2025 387th estomagordo 🇳🇱 100 571 14ms 3 Aug 2019 387th gradylynn 100 571 9ms 21 Dec 2021 389th bretthat0 99 577 10ms 11 Nov 2017 389th sshanks49 99 577 10ms 26 Feb 2020 389th StHagel 99 577 9ms 25 Aug 2020 389th bac0id 99 577 10ms 25 Jan 2021 389th GeneralTwi 99 577 9ms 28 Apr 2022 389th KatieLG-Transpiler 🇬🇧 99 577 10ms 23 Jun 2022 389th jaxmattfair 🇺🇸 99 577 9ms 14 Jan 2023 389th Yareeeema 99 577 9ms 12 Sep 2023 389th zt14427 99 577 10ms 18 Nov 2023 398th gigaprofisi 🇺🇸 98 579 9ms 9 Mar 2025 399th DaleNaci 91 629 9ms 29 Aug 2018 400th malre 70 817 12ms 29 May 2021 First Prev 321–400 of 400
