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 161st knutae 🇳🇴 587 92 10ms 4 Dec 2021 161st hellwue 587 92 9ms 29 Aug 2024 163rd skps2010 581 93 10ms 15 Jun 2019 163rd tooningelaere 581 93 10ms 4 Dec 2022 163rd andre-lameirinhas 🇵🇹 581 93 9ms 23 May 2023 163rd vhoulbreque 🇫🇷 581 93 10ms 19 days ago 167th ieeemma 574 94 10ms 1 Feb 2020 167th OllieBoyne 🇬🇧 574 94 11ms 29 Jan 2021 167th Mikey-Beep 🇬🇧 574 94 10ms 2 Jun 2024 167th solisolu 574 94 10ms 15 Nov 2025 171st martinnorling 🇸🇪 568 95 10ms 31 Mar 2022 171st rollershutter 568 95 12ms 30 Jun 2024 171st hiichbindermax 568 95 9ms 17 Sep 2024 171st ToE42 568 95 10ms 28 May 2025 175th Indivicivet 563 96 10ms 17 Mar 2021 175th Bonjour27891 🇻🇳 563 96 12ms 6 Mar 2022 175th nullie 563 96 9ms 15 Jun 2022 175th johndixon01 563 96 10ms 22 Sep 2022 175th ridingqwerty 🇺🇸 563 96 10ms 19 Dec 2023 175th theadamabrams 563 96 9ms 28 Nov 2024 175th TheZwierzLF 🇵🇱 563 96 9ms 25 days ago 182nd wadefletch 557 97 9ms 8 Feb 2020 182nd Psirving 557 97 9ms 1 Aug 2020 182nd AkashTandon167 557 97 11ms 3 Jan 2021 182nd kirbyyourmom 🇬🇧 557 97 10ms 4 Mar 2021 182nd vezzick 557 97 10ms 12 Mar 2021 182nd jtaxen 557 97 9ms 5 Apr 2024 188th max-the-mage 551 98 10ms 29 Oct 2020 188th celiendonze 🇨🇭 551 98 13ms 26 Jun 2023 188th cingulataluke 551 98 9ms 26 Aug 2023 188th weliveinhell 🇭🇹 551 98 10ms 2 Oct 2024 188th 5quiwyrm 551 98 9ms 11 Feb 2025 193rd quimey 545 99 9ms 5 Jul 2023 193rd Techdude01 545 99 9ms 21 Dec 2023 193rd croc54 545 99 9ms 13 Dec 2024 196th abailey2020 🇺🇸 540 100 10ms 13 Dec 2020 196th mosho-p 540 100 2,626ms 13 Oct 2022 196th za3k 540 100 10ms 16 Oct 2022 196th maxgodfrey2004 🇨🇦 540 100 9ms 14 Feb 2025 200th countlpaul-dotcom 535 101 10ms 19 Oct 2025 201st karhuthebear 529 102 9ms 6 May 2022 201st Just4FunCoder 529 102 9ms 27 Nov 2022 201st SirFireball3521 529 102 10ms 2 Mar 2023 201st inverseLorentz 🇦🇺 529 102 10ms 23 Apr 2024 205th zuparnowa 524 103 10ms 31 Jan 2019 205th henrytranter 524 103 10ms 20 Sep 2019 205th doug-h 524 103 10ms 26 May 2020 205th 77Tigers 524 103 11ms 4 Feb 2021 205th tpasfieldERAU 524 103 10ms 4 Nov 2022 210th sk- 519 104 11ms 11 Sep 2019 210th SniperSmiley 🇺🇸 519 104 10ms 12 Jun 2022 212th amollberg 🇸🇪 509 106 11ms 16 Jan 2022 212th JunkIce 509 106 10ms 19 Jan 2025 214th shraiwi 505 107 10ms 9 Dec 2020 214th Pena86 505 107 10ms 25 Dec 2021 214th CedricGebistorf 505 107 10ms 19 Feb 2022 214th Poarthan 505 107 10ms 8 Mar 2022 214th ramsay 505 107 10ms 10 Aug 2022 214th Mabeloid 🇳🇴 505 107 9ms 7 Sep 2024 220th cellobix 500 108 10ms 15 Aug 2019 220th vfridkin 500 108 13ms 12 Jul 2022 222nd fgrosshans 🇫🇷 495 109 10ms 7 Jan 2022 222nd lemogne 495 109 17ms 3 Jun 2022 224th danielwang5 491 110 16ms 9 Mar 2021 224th guilhem-roy 🇫🇷 491 110 9ms 25 Feb 2022 224th RyGuy101 491 110 11ms 21 Jul 2023 227th lrustand 486 111 9ms 16 Jan 2018 227th ydevor 🇮🇱 486 111 16ms 24 Nov 2020 227th cbondurant 486 111 10ms 1 Oct 2021 230th CatsAreFluffy 482 112 10ms 25 Jan 2023 231st ay2718 478 113 9ms 20 Aug 2019 231st dymowski 478 113 10ms 15 Jan 2020 233rd aalec 474 114 9ms 25 Apr 2024 234th PFischbeck 470 115 10ms 26 Nov 2017 234th mokymok 🇺🇸 470 115 10ms 23 Nov 2021 234th Stockoh 🇫🇷 470 115 10ms 16 Nov 2024 237th adamnielson42 🇺🇸 466 116 10ms 11 Aug 2023 237th RedzGoose 🇦🇺 466 116 9ms 14 Oct 2024 239th robin-scragg 462 117 9ms 15 Jul 2025 240th CutSandstone 458 118 16ms 8 Jul 2024 First Prev 161–240 of 400 Next Last
