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 160th martinnorling 🇸🇪 588 97 10ms 31 Mar 2022 160th rollershutter 588 97 12ms 30 Jun 2024 160th hiichbindermax 588 97 9ms 17 Sep 2024 160th ToE42 588 97 10ms 28 May 2025 165th Indivicivet 582 98 10ms 17 Mar 2021 165th Bonjour27891 🇻🇳 582 98 12ms 6 Mar 2022 165th nullie 582 98 9ms 15 Jun 2022 165th johndixon01 582 98 10ms 22 Sep 2022 165th QuincyNash 🇺🇸 582 98 10ms 30 Nov 2022 165th ridingqwerty 🇺🇸 582 98 10ms 19 Dec 2023 165th theadamabrams 582 98 9ms 28 Nov 2024 165th TheZwierzLF 🇵🇱 582 98 9ms 25 days ago 173rd wadefletch 576 99 9ms 8 Feb 2020 173rd AkashTandon167 576 99 11ms 3 Jan 2021 173rd kirbyyourmom 🇬🇧 576 99 10ms 4 Mar 2021 173rd jtaxen 576 99 9ms 5 Apr 2024 173rd dokutan 576 99 10ms 15 May 2024 178th max-the-mage 570 100 10ms 29 Oct 2020 178th celiendonze 🇨🇭 570 100 13ms 26 Jun 2023 178th cingulataluke 570 100 9ms 26 Aug 2023 178th weliveinhell 🇭🇹 570 100 10ms 2 Oct 2024 178th 5quiwyrm 570 100 9ms 11 Feb 2025 183rd Psirving 564 101 9ms 1 Aug 2020 183rd vezzick 564 101 10ms 12 Mar 2021 183rd quimey 564 101 9ms 5 Jul 2023 183rd Techdude01 564 101 9ms 21 Dec 2023 183rd croc54 564 101 9ms 13 Dec 2024 188th mosho-p 559 102 2,626ms 13 Oct 2022 188th za3k 559 102 10ms 16 Oct 2022 188th Jacob385 559 102 9ms 14 Mar 2024 188th maxgodfrey2004 🇨🇦 559 102 9ms 14 Feb 2025 188th RYSF13 🇨🇳 559 102 9ms 18 Jul 2025 193rd RYNO8 553 103 10ms 11 Sep 2021 193rd jeff-at-tamer-dot-codes 🇺🇸 553 103 11ms 13 Mar 2023 193rd countlpaul-dotcom 553 103 10ms 19 Oct 2025 196th abailey2020 🇺🇸 548 104 10ms 13 Dec 2020 196th karhuthebear 548 104 9ms 6 May 2022 196th Just4FunCoder 548 104 9ms 27 Nov 2022 196th SirFireball3521 548 104 10ms 2 Mar 2023 196th inverseLorentz 🇦🇺 548 104 10ms 23 Apr 2024 201st zuparnowa 543 105 10ms 31 Jan 2019 201st henrytranter 543 105 10ms 20 Sep 2019 201st doug-h 543 105 10ms 26 May 2020 201st 77Tigers 543 105 11ms 4 Feb 2021 201st tpasfieldERAU 543 105 10ms 4 Nov 2022 206th sk- 538 106 11ms 11 Sep 2019 206th SniperSmiley 🇺🇸 538 106 10ms 12 Jun 2022 208th amollberg 🇸🇪 528 108 11ms 16 Jan 2022 209th shraiwi 523 109 10ms 9 Dec 2020 209th Pena86 523 109 10ms 25 Dec 2021 209th CedricGebistorf 523 109 10ms 19 Feb 2022 209th Poarthan 523 109 10ms 8 Mar 2022 209th ramsay 523 109 10ms 10 Aug 2022 209th 2011-Chan-Ethan 523 109 17ms 9 Jul 2023 209th Mabeloid 🇳🇴 523 109 9ms 7 Sep 2024 216th cellobix 518 110 10ms 15 Aug 2019 216th FlorianCassayre 🇫🇷 518 110 9ms 5 Sep 2023 218th fgrosshans 🇫🇷 514 111 10ms 7 Jan 2022 218th lemogne 514 111 17ms 3 Jun 2022 220th danielwang5 509 112 16ms 9 Mar 2021 220th guilhem-roy 🇫🇷 509 112 9ms 25 Feb 2022 220th vfridkin 509 112 13ms 12 Jul 2022 220th RyGuy101 509 112 11ms 21 Jul 2023 224th lrustand 504 113 9ms 16 Jan 2018 224th ydevor 🇮🇱 504 113 16ms 24 Nov 2020 224th cbondurant 504 113 10ms 1 Oct 2021 227th CatsAreFluffy 500 114 10ms 25 Jan 2023 228th ay2718 496 115 9ms 20 Aug 2019 229th jacklynnepenick 491 116 10ms 26 Aug 2021 229th aalec 491 116 9ms 25 Apr 2024 231st PFischbeck 487 117 10ms 26 Nov 2017 231st dymowski 487 117 10ms 15 Jan 2020 231st mokymok 🇺🇸 487 117 10ms 23 Nov 2021 231st Stockoh 🇫🇷 487 117 10ms 16 Nov 2024 235th RedzGoose 🇦🇺 483 118 9ms 14 Oct 2024 236th CutSandstone 475 120 16ms 8 Jul 2024 237th Anonymousellama21 471 121 10ms 24 May 2022 237th roguh 🇬🇹 471 121 11ms 22 Feb 2024 239th adamnielson42 🇺🇸 460 124 10ms 11 Aug 2023 239th xbxbxb007 460 124 9ms 22 Jan 2024 First Prev 161–240 of 400 Next Last