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 72nd jatloe 731 78 9ms 29 Oct 2024 72nd snydej 731 78 10ms 21 Nov 2024 72nd Lv0Sys 🇵🇱 731 78 10ms 21 days ago 84th thisishowmymindworks 🇳🇴 722 79 10ms 5 Oct 2020 84th SnowballSH 722 79 12ms 4 Mar 2021 84th NewDefectus 🇮🇱 722 79 9ms 9 Nov 2021 84th fourth-bit 722 79 10ms 23 Sep 2024 84th Pyroan 722 79 9ms 22 Feb 2025 84th wuduculfre 722 79 9ms 22 Jul 2025 84th cros107 🇦🇺 722 79 9ms 13 days ago 91st yzhs 🇩🇪 713 80 10ms 6 Sep 2020 91st namelessiw 713 80 9ms 6 May 2024 93rd argusdusty 🇺🇸 704 81 10ms 31 Dec 2020 93rd scpchicken 🇵🇼 704 81 10ms 13 Mar 2022 93rd mathb0y512 704 81 11ms 24 Nov 2022 93rd Bulmenisaurus 704 81 10ms 5 Jan 2025 93rd InigoK 🇺🇸 704 81 10ms 22 Sep 2025 93rd Emutis 🇱🇹 704 81 11ms 15 hours ago 99th redbeancola 695 82 11ms 11 Oct 2021 99th aksyristos 695 82 10ms 28 Feb 2023 101st kevinmchung 687 83 10ms 1 Mar 2018 101st myfatemi04 687 83 10ms 1 Mar 2018 101st dzhang314 687 83 17ms 14 Aug 2019 101st GolfingSuccess 🇬🇷 687 83 15ms 6 May 2022 101st glesnick 687 83 11ms 15 Jul 2022 101st elephantpanda 687 83 9ms 31 Aug 2022 101st ahmetdemirag 🇨🇾 687 83 9ms 8 Feb 2025 101st ndren 687 83 9ms 7 Jul 2025 101st andrewjc2000 687 83 9ms 31 Jul 2025 110th KatieLG 🇬🇧 679 84 10ms 19 Oct 2021 110th SomeKitten 🇺🇸 679 84 10ms 20 Aug 2022 110th mathisfun271 679 84 16ms 13 Feb 2024 110th qpwoeirut 679 84 9ms 18 Sep 2025 114th plcc0 663 86 10ms 27 Mar 2025 115th geofft 655 87 9ms 12 Dec 2020 115th programjames 655 87 10ms 7 May 2022 115th jakobkordez 🇸🇮 655 87 11ms 28 Oct 2022 118th zdzc 648 88 9ms 8 Feb 2018 118th nstearns96 🇬🇧 648 88 10ms 8 Dec 2022 118th TaserTheFox 🇺🇸 648 88 13ms 1 May 2023 118th snoozingnewt 🇨🇦 648 88 10ms 20 Nov 2025 118th FortuiteMan 🇫🇷 648 88 9ms 12 days ago 123rd giacomogallina 640 89 17ms 12 Jun 2019 123rd fynnkroeger 640 89 9ms 20 Feb 2021 123rd Artemis21 🇬🇧 640 89 11ms 17 Jan 2025 123rd HumanoidCPU 640 89 9ms 11 Feb 2025 123rd iliao2345 640 89 9ms 8 Jul 2025 123rd albanian-laundromat 640 89 10ms 11 Nov 2025 129th Constructor7 633 90 11ms 23 Feb 2018 129th neihousaigaai 633 90 16ms 7 May 2021 131st MarcMush 🇫🇷 626 91 9ms 13 Jan 2022 131st SB-945 626 91 10ms 7 Apr 2024 131st RaBa21 🇭🇺 626 91 9ms 21 Jul 2025 134th eddvrs 620 92 10ms 21 Dec 2023 134th coldham10 620 92 9ms 28 Jun 2025 136th AgathokakologicalBit 613 93 11ms 27 Jul 2019 136th stordev 613 93 10ms 26 Feb 2021 136th rak1507 🇬🇧 613 93 10ms 10 Mar 2021 136th ArmaanAS 613 93 11ms 6 Apr 2021 136th olivermrose 🇺🇸 613 93 10ms 29 Aug 2021 136th CodyMiner 613 93 10ms 14 Nov 2021 136th vodker1 613 93 10ms 7 Mar 2022 136th trist224 🇫🇷 613 93 12ms 15 Sep 2022 136th TheBlupper 613 93 12ms 24 Oct 2022 136th Eilonlif 🇮🇱 613 93 11ms 4 Nov 2022 136th MichalMarsalek 🇨🇿 613 93 10ms 21 Jan 2023 136th klixel 🇨🇦 613 93 10ms 19 Jan 2025 136th agreegious 613 93 10ms 16 Mar 2025 149th knutae 🇳🇴 606 94 10ms 4 Dec 2021 149th hellwue 606 94 9ms 29 Aug 2024 149th wh3n3v3r 🇨🇿 606 94 9ms 13 Nov 2024 152nd sambirnbaum1 600 95 10ms 12 Oct 2019 152nd tooningelaere 600 95 10ms 4 Dec 2022 152nd andre-lameirinhas 🇵🇹 600 95 9ms 23 May 2023 152nd vhoulbreque 🇫🇷 600 95 10ms 19 days ago 156th ieeemma 594 96 10ms 1 Feb 2020 156th OllieBoyne 🇬🇧 594 96 11ms 29 Jan 2021 156th Mikey-Beep 🇬🇧 594 96 10ms 2 Jun 2024 156th solisolu 594 96 10ms 15 Nov 2025 160th skps2010 588 97 10ms 15 Jun 2019 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