The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Sierpiński Triangle in all languages 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 321st ovs-code 🇩🇪 816 86 73ms 17 Sep 2023 322nd kumavale 816 96 119ms 10 Sep 2025 323rd Natanaelel 🇸🇪 815 40 49ms 29 Aug 2022 324th antimon2 🇯🇵 814 52 420ms 12 Jul 2020 325th MeWhenI 🇻🇦 814 76 84ms 12 Dec 2022 326th HPWiz 🇳🇿 813 82 114ms 20 Oct 2020 327th GrayJoKing 🇦🇺 812 92 6ms 4 Feb 2025 328th nwellnhof 🇩🇪 811 37 34ms 1 Oct 2021 328th Dominoscompute 811 37 35ms 1 Jun 2022 330th hiddicop 🇸🇪 809 55 48ms 31 Jan 2021 330th olivermrose 🇺🇸 809 55 36ms 7 Oct 2021 330th DialFrost 🇸🇬 809 55 32ms 28 Nov 2023 330th blaztoma 🇱🇹 809 55 37ms 85 mins ago 334th inventshah 808 88 66ms 7 days ago 335th cure-honey 🇯🇵 808 130 25ms 9 Jul 2021 336th xem 805 57 9ms 8 Oct 2018 337th primo-ppcg 🇹🇭 805 72 92ms 20 Jan 2020 337th MeWhenI 🇻🇦 805 72 93ms 27 Feb 2023 339th emplv 🇱🇻 805 81 105ms 22 Jan 2023 339th Yewzir 🇧🇪 805 81 98ms 28 Mar 2024 341st emplv 🇱🇻 805 120 274ms 26 Jan 2022 342nd stefangimmillaro 802 55 1,077ms 10 Jan 2023 343rd SnowballSH 802 66 11ms 4 Mar 2021 343rd StefanHabel 🇨🇦 802 66 10ms 20 Apr 2024 345th kg583 🇺🇸 802 91 11ms 30 Jul 2025 346th steffan-polygolf 801 78 4ms 21 Feb 2024 347th duckyluuk 🇳🇱 799 61 345ms 29 Aug 2024 347th Babafaba 799 61 356ms 6 Nov 2025 349th GrayJoKing 🇦🇺 797 88 125ms 5 Apr 2023 350th Shanethegamer 🇺🇸 796 109 23ms 2 Mar 2023 351st MeWhenI 🇻🇦 795 41 59ms 24 Aug 2022 352nd rucin93 🇵🇱 795 72 3,998ms 20 Nov 2024 353rd MeWhenI 🇻🇦 795 94 7ms 1 Jan 2025 354th GrayJoKing 🇦🇺 792 66 131ms 13 Aug 2024 355th stefangimmillaro 792 122 285ms 26 Aug 2023 356th sisyphus-ppcg 🇦🇺 791 58 8ms 23 Jan 2023 357th leon-w 790 67 10ms 5 Jan 2019 357th GolfingSuccess 🇬🇷 790 67 16ms 10 Oct 2020 357th Shanethegamer 🇺🇸 790 67 9ms 26 Mar 2022 357th SirBogman 🇺🇸 790 67 11ms 4 Dec 2022 357th KatieLG 🇬🇧 790 67 10ms 11 Dec 2022 357th bzijlema 🇳🇱 790 67 10ms 15 Nov 2024 357th ndren 790 67 10ms 7 Jul 2025 357th edsrzf 🇳🇿 790 67 9ms 11 Sep 2025 365th BlankSpruce 790 90 68ms 12 Aug 2022 365th zygoloid 790 90 77ms 6 Aug 2024 365th snyderek 🇺🇸 790 90 83ms 6 Aug 2024 365th tailorspy 790 90 63ms 9 Aug 2024 369th primo-ppcg 🇹🇭 789 72 106ms 25 Dec 2020 370th Yax42 🇫🇷 789 79 362ms 2 Oct 2025 371st o0lit3 🇺🇸 788 46 2ms 18 Sep 2020 371st GrayJoKing 🇦🇺 788 46 2ms 22 Jan 2023 371st scpchicken 🇵🇼 788 46 2ms 22 Jan 2023 374th m-tkach 🇺🇦 788 110 28ms 5 Jan 2024 375th anter69 🇭🇺 787 56 1,179ms 22 Feb 2024 376th Shanethegamer 🇺🇸 786 83 101ms 25 Oct 2022 377th arjanadriaanse 🇳🇱 784 85 113ms 9 Feb 2022 378th ovs-code 🇩🇪 784 88 484ms 8 Mar 2022 379th sisyphus-ppcg 🇦🇺 783 60 6ms 22 Jan 2023 380th sean-niemann 🇺🇸 783 74 79ms 7 Dec 2023 381st Shanethegamer 🇺🇸 783 79 77ms 25 Oct 2022 382nd emplv 🇱🇻 783 134 25ms 31 Oct 2022 383rd janlelis 781 57 41ms 5 Jan 2020 383rd prplz 🇦🇺 781 57 35ms 5 Jun 2020 383rd KatieLG 🇬🇧 781 57 38ms 19 Oct 2021 383rd jared-hughes 781 57 45ms 12 Sep 2022 383rd GrayJoKing 🇦🇺 781 57 36ms 21 Jan 2023 388th edre 779 68 10ms 6 May 2018 388th SomeKitten 🇺🇸 779 68 10ms 21 Aug 2022 388th plcc0 779 68 9ms 30 Mar 2025 391st namelessiw 779 80 358ms 7 Jun 2024 391st stefangimmillaro 779 80 384ms 20 Oct 2025 393rd emgordon154 779 116 107ms 13 days ago 394th Attero 🇸🇪 778 81 2ms 2 Apr 2020 395th tayloia 🇬🇧 777 59 9ms 10 May 2023 395th steffan-polygolf 777 59 9ms 21 Feb 2024 397th steffan-polygolf 776 94 8ms 21 Feb 2024 398th GrayJoKing 🇦🇺 774 63 379ms 16 Jan 2024 399th ovs-code 🇩🇪 773 92 76ms 3 Jun 2024 400th janbehrens 🇩🇪 773 125 292ms 28 Nov 2023 First Prev 321–400 of 2,038 Next Last