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 79th dirckvdende 740 73 9ms 18 Jul 2025 82nd daedals 730 74 10ms 14 May 2019 82nd petar-donchev 730 74 10ms 8 Sep 2019 82nd jared-hughes 730 74 9ms 10 Sep 2022 82nd betaveros 730 74 10ms 31 Dec 2022 82nd stefangimmillaro 730 74 10ms 11 Mar 2023 82nd BREMAUCY 🇫🇷 730 74 10ms 1 Nov 2025 88th yzhs 🇩🇪 720 75 10ms 25 Oct 2020 88th SB-945 720 75 10ms 7 Apr 2024 88th dokutan 720 75 10ms 15 May 2024 88th YAJUE114514 720 75 9ms 30 Jul 2025 88th blaztoma 🇱🇹 720 75 9ms 26 days ago 93rd hoodadam 711 76 10ms 31 Jan 2020 93rd hiddicop 🇸🇪 711 76 10ms 31 Jan 2021 93rd sleepyStick 711 76 10ms 8 Dec 2021 93rd cubed-guy 711 76 10ms 12 Feb 2022 93rd Fracture17 711 76 9ms 4 Apr 2023 93rd Jacob385 711 76 9ms 14 Mar 2024 93rd stertooy 🇧🇪 711 76 9ms 14 Jun 2024 93rd jatloe 711 76 9ms 29 Oct 2024 93rd snydej 711 76 10ms 21 Nov 2024 93rd moustave 711 76 10ms 10 Apr 2025 93rd RYSF13 🇨🇳 711 76 9ms 18 Jul 2025 93rd Lv0Sys 🇵🇱 711 76 10ms 20 days ago 105th RYNO8 701 77 11ms 11 Sep 2021 105th NewDefectus 🇮🇱 701 77 9ms 9 Nov 2021 105th jeff-at-tamer-dot-codes 🇺🇸 701 77 10ms 13 Mar 2023 105th fourth-bit 701 77 10ms 23 Sep 2024 105th Pyroan 701 77 9ms 22 Feb 2025 105th wuduculfre 701 77 9ms 22 Jul 2025 105th cros107 🇦🇺 701 77 9ms 12 days ago 112th namelessiw 692 78 9ms 6 May 2024 113th argusdusty 🇺🇸 684 79 10ms 31 Dec 2020 113th scpchicken 🇵🇼 684 79 10ms 13 Mar 2022 113th mathb0y512 684 79 11ms 24 Nov 2022 113th Bulmenisaurus 684 79 10ms 5 Jan 2025 113th InigoK 🇺🇸 684 79 10ms 22 Sep 2025 113th Emutis 🇱🇹 684 79 11ms 28 mins ago 119th redbeancola 675 80 11ms 11 Oct 2021 119th QuincyNash 🇺🇸 675 80 11ms 29 Nov 2022 119th aksyristos 675 80 10ms 28 Feb 2023 119th 2011-Chan-Ethan 675 80 18ms 9 Jul 2023 119th FlorianCassayre 🇫🇷 675 80 10ms 18 Sep 2023 124th kevinmchung 667 81 10ms 1 Mar 2018 124th myfatemi04 667 81 10ms 1 Mar 2018 124th dzhang314 667 81 17ms 14 Aug 2019 124th glesnick 667 81 11ms 15 Jul 2022 124th ahmetdemirag 🇨🇾 667 81 9ms 8 Feb 2025 124th andrewjc2000 667 81 9ms 31 Jul 2025 130th mathisfun271 659 82 16ms 13 Feb 2024 130th qpwoeirut 659 82 9ms 18 Sep 2025 132nd elephantpanda 651 83 9ms 31 Aug 2022 133rd geofft 635 85 9ms 12 Dec 2020 133rd programjames 635 85 10ms 7 May 2022 135th zdzc 628 86 9ms 8 Feb 2018 135th Constructor7 628 86 11ms 23 Feb 2018 135th nstearns96 🇬🇧 628 86 10ms 8 Dec 2022 135th TaserTheFox 🇺🇸 628 86 13ms 1 May 2023 135th FortuiteMan 🇫🇷 628 86 9ms 11 days ago 140th giacomogallina 621 87 17ms 12 Jun 2019 140th fynnkroeger 621 87 9ms 20 Feb 2021 140th jacklynnepenick 621 87 10ms 26 Aug 2021 140th iliao2345 621 87 9ms 8 Jul 2025 144th neihousaigaai 614 88 16ms 7 May 2021 145th AgathokakologicalBit 607 89 11ms 27 Jul 2019 145th stordev 607 89 10ms 26 Feb 2021 145th ArmaanAS 607 89 11ms 6 Apr 2021 145th olivermrose 🇺🇸 607 89 10ms 29 Aug 2021 145th CodyMiner 607 89 10ms 14 Nov 2021 145th MarcMush 🇫🇷 607 89 9ms 13 Jan 2022 145th vodker1 607 89 10ms 7 Mar 2022 145th trist224 🇫🇷 607 89 12ms 15 Sep 2022 145th TheBlupper 607 89 12ms 24 Oct 2022 145th Eilonlif 🇮🇱 607 89 11ms 4 Nov 2022 145th MichalMarsalek 🇨🇿 607 89 10ms 21 Jan 2023 145th klixel 🇨🇦 607 89 10ms 19 Jan 2025 145th agreegious 607 89 10ms 16 Mar 2025 158th eddvrs 600 90 10ms 21 Dec 2023 158th coldham10 600 90 9ms 28 Jun 2025 160th sambirnbaum1 593 91 10ms 12 Oct 2019 First Prev 81–160 of 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