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 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 720th fynnkroeger 628 89 9ms 20 Feb 2021 720th Artemis21 🇬🇧 628 89 11ms 17 Jan 2025 720th HumanoidCPU 628 89 9ms 11 Feb 2025 720th iliao2345 628 89 9ms 8 Jul 2025 720th albanian-laundromat 628 89 10ms 11 Nov 2025 726th MeWhenI 🇻🇦 628 122 44ms 13 Feb 2025 727th hrrs01 627 77 51ms 5 Feb 2018 727th FlyingPenguin223 627 77 33ms 23 Sep 2024 729th user189032 624 110 112ms 29 May 2019 730th Steffan153 🇫🇮 624 113 363ms 21 Feb 2024 731st Shanethegamer 🇺🇸 623 114 485ms 4 Apr 2022 732nd Constructor7 621 90 11ms 23 Feb 2018 732nd neihousaigaai 621 90 16ms 7 May 2021 734th alemelis 620 73 364ms 4 Mar 2024 735th prestosilver 🇺🇸 620 90 2ms 25 hours ago 736th retrohun 620 118 60ms 28 Dec 2022 737th n1LS 619 78 43ms 9 Oct 2019 738th janbehrens 🇩🇪 615 75 1,164ms 27 Nov 2022 739th MadScience137 614 78 9ms 19 Oct 2022 740th MarcMush 🇫🇷 614 91 9ms 13 Jan 2022 740th SB-945 614 91 10ms 7 Apr 2024 740th RaBa21 🇭🇺 614 91 9ms 21 Jul 2025 743rd laikoni 613 112 119ms 3 Mar 2019 744th primo-ppcg 🇹🇭 613 115 383ms 18 Aug 2021 745th Shanethegamer 🇺🇸 612 96 94ms 2 Jul 2021 745th Yewzir 🇧🇪 612 96 94ms 3 Feb 2024 747th Shanethegamer 🇺🇸 610 70 2ms 13 Dec 2022 747th DialFrost 🇸🇬 610 70 2ms 1 Feb 2025 749th CaedenHarper 🇨🇦 609 72 720ms 7 Sep 2025 750th eddvrs 608 92 10ms 21 Dec 2023 750th coldham10 608 92 9ms 28 Jun 2025 752nd emgordon154 608 106 4ms 30 Dec 2024 753rd MeWhenI 🇻🇦 608 122 3ms 2 Oct 2022 754th HumanoidCPU 607 88 438ms 11 Feb 2025 754th snoozingnewt 🇨🇦 607 88 349ms 20 Nov 2025 756th postie77 607 106 331ms 26 Jul 2023 757th Irratix 🇳🇱 607 116 374ms 23 May 2022 758th snoozingnewt 🇨🇦 606 99 98ms 20 Nov 2025 759th annaproxy 602 114 119ms 6 Feb 2022 759th Sakisan 🇧🇪 602 114 116ms 12 Apr 2022 759th Shanethegamer 🇺🇸 602 114 111ms 25 Oct 2022 762nd albanian-laundromat 601 89 452ms 11 Nov 2025 763rd AgathokakologicalBit 601 93 11ms 27 Jul 2019 763rd stordev 601 93 10ms 26 Feb 2021 763rd rak1507 🇬🇧 601 93 10ms 10 Mar 2021 763rd ArmaanAS 601 93 11ms 6 Apr 2021 763rd olivermrose 🇺🇸 601 93 10ms 29 Aug 2021 763rd CodyMiner 601 93 10ms 14 Nov 2021 763rd vodker1 601 93 10ms 7 Mar 2022 763rd trist224 🇫🇷 601 93 12ms 15 Sep 2022 763rd TheBlupper 601 93 12ms 24 Oct 2022 763rd Eilonlif 🇮🇱 601 93 11ms 4 Nov 2022 763rd MichalMarsalek 🇨🇿 601 93 10ms 21 Jan 2023 763rd klixel 🇨🇦 601 93 10ms 19 Jan 2025 763rd agreegious 601 93 10ms 16 Mar 2025 776th GolfingSuccess 🇬🇷 600 93 1ms 21 Dec 2023 776th Yewzir 🇧🇪 600 93 1ms 9 Feb 2024 778th Yewzir 🇧🇪 599 122 403ms 19 Nov 2023 778th qwertyuiop3 🇷🇺 599 122 423ms 28 May 2025 780th elisherer 🇮🇱 598 80 9ms 5 Apr 2019 781st targrik 598 82 6ms 21 days ago 782nd janAkali 🇷🇺 596 121 119ms 17 May 2025 783rd MeWhenI 🇻🇦 595 68 4ms 15 Feb 2025 784th knutae 🇳🇴 595 94 10ms 4 Dec 2021 784th hellwue 595 94 9ms 29 Aug 2024 784th wh3n3v3r 🇨🇿 595 94 9ms 13 Nov 2024 787th LHLaurini 🇧🇷 594 94 1ms 2 May 2024 787th iczelia 🇩🇪 594 94 2ms 15 Oct 2025 789th lynn 593 54 14ms 25 Jul 2021 790th DialFrost 🇸🇬 592 74 751ms 2 Sep 2025 791st emgordon154 592 96 134ms 5 Jan 2025 792nd DialFrost 🇸🇬 592 150 25ms 6 Jan 2023 793rd MeWhenI 🇻🇦 592 171 1,722ms 22 Apr 2024 794th DaCuteRaccoon 589 82 34ms 27 Apr 2022 794th aksyristos 589 82 36ms 31 Jan 2023 796th sambirnbaum1 589 95 10ms 12 Oct 2019 796th tooningelaere 589 95 10ms 4 Dec 2022 796th andre-lameirinhas 🇵🇹 589 95 9ms 23 May 2023 796th vhoulbreque 🇫🇷 589 95 10ms 18 days ago 800th scpchicken 🇵🇼 587 117 114ms 3 Mar 2022 First Prev 721–800 of 2,055 Next Last