The Calendar hole will go live in approximately 4 days. Why not try and solve it ahead of time?
Leap Years in PowerShell 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 80th jkrgr0 578 45 240ms 9 Jun 2020 80th waltervos 578 45 217ms 31 Dec 2020 80th Ripick 578 45 207ms 13 Aug 2022 84th harperse 565 46 237ms 10 Jun 2020 84th rogerrb 565 46 232ms 19 Jun 2022 84th Arnaud-beep 🇫🇷 565 46 256ms 24 Oct 2022 87th Agazoth 553 47 228ms 17 Nov 2020 88th burkasaurusrex 542 48 235ms 4 Jun 2020 88th SteveL-MSFT 542 48 198ms 4 Jun 2020 88th ScriptingPro 542 48 227ms 23 Nov 2020 88th gjh71 🇳🇱 542 48 276ms 10 Jan 2021 88th BSharp2217 542 48 236ms 12 Jan 2025 93rd dokutan 531 49 243ms 25 Sep 2024 94th northvandrew 520 50 224ms 4 Jun 2020 94th sergeyz7 🇬🇧 520 50 217ms 5 Nov 2020 96th ZakkkkAttackkkk 🇵🇭 491 53 204ms 6 Dec 2021 97th rdbartram 473 55 238ms 3 Jun 2020 97th sanderkl 473 55 202ms 5 Jun 2020 97th rholliday 473 55 216ms 26 Feb 2021 97th snoozingnewt 🇨🇦 473 55 198ms 21 Sep 2023 101st brwilkinson 464 56 245ms 6 Jun 2020 101st astdefu 464 56 211ms 11 Dec 2022 101st Betuaredead 464 56 227ms 4 Jan 2023 104th Ba4bes 448 58 236ms 3 Jun 2020 105th hdformat 441 59 246ms 7 Jun 2020 105th lasagnabox 441 59 250ms 8 Jun 2020 105th HeyDude378 441 59 253ms 14 Jul 2023 108th DaCuteRaccoon 426 61 239ms 21 Apr 2022 109th thed1n 419 62 213ms 20 Oct 2023 110th msturdy-ucd 413 63 245ms 5 Jun 2020 110th kenmich 413 63 226ms 12 May 2023 112th Flobois 400 65 214ms 2 Jul 2024 113th WatchBenGo 388 67 219ms 10 Jun 2020 113th acolytegerm 388 67 241ms 14 Jun 2020 115th AJLindner 382 68 242ms 6 Aug 2020 116th StronkCheese 🇺🇸 377 69 184ms 27 Feb 2023 117th runaboutfence 356 73 190ms 9 Oct 2020 118th roguh 🇬🇹 351 74 202ms 15 Jan 2024 119th jorgeasaurus 342 76 236ms 5 Jun 2020 120th NoneTheFewer 338 77 209ms 4 hours ago 121st povce 329 79 254ms 7 Apr 2023 122nd Smetalo 321 81 187ms 25 Aug 2022 123rd sgaltair 317 82 327ms 8 Mar 2022 123rd msbranicky 317 82 216ms 6 Jul 2023 125th sojumasterGA 280 93 195ms 20 Jun 2022 126th ErnestEverhard 160 162 217ms 7 Jun 2020 127th SQLDBAWithABeard 160 163 186ms 3 Jun 2020 128th MJECloud 119 218 232ms 3 Jun 2020 129th CriticalMax 119 219 223ms 3 Jun 2020 130th pawanadubey 97 268 227ms 3 Jun 2020 131st HumanoidCPU 36 729 209ms 18 May 2024 131st CaedenHarper 🇨🇦 36 729 199ms 16 Aug 2025 133rd bac0id 36 731 192ms 25 Jan 2021 133rd Mabeloid 🇳🇴 36 731 187ms 22 Sep 2024 135th mokymok 🇺🇸 30 876 211ms 10 Nov 2021 136th KatieLG 🇬🇧 30 881 203ms 10 Oct 2021 136th KatieLG-Transpiler 🇬🇧 30 881 224ms 24 Jun 2022 138th retrohun 11 2,335 216ms 27 Dec 2022 First Prev 81–138 of 138
