The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
Arithmetic Numbers in JavaScript 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 81st TheRealOhead 🇺🇸 727 77 400ms 12 Oct 2023 82nd ShiraJoseph 🇺🇸 709 79 118ms 20 Jan 2025 83rd kellantech 691 81 88ms 2 days ago 83rd amazingalek 691 81 88ms 100 mins ago 85th ollyspooner 683 82 76ms 16 Nov 2023 86th andrewjc2000 675 83 76ms 20 Oct 2024 87th dbkirk4211 659 85 77ms 3 May 2024 87th mobibluman 659 85 81ms 16 Aug 2024 89th Davr1 🇨🇿 651 86 108ms 14 Oct 2023 89th msbranicky 651 86 78ms 5 Jan 2024 89th a6166231 🇨🇳 651 86 442ms 27 Apr 2025 92nd zakariamouhid 644 87 16ms 11 Oct 2023 93rd daveberlin 636 88 77ms 23 Oct 2023 94th KatieLG 🇬🇧 615 91 110ms 5 Oct 2023 94th coreynash 615 91 16ms 26 Mar 2024 94th MyltsinVV 615 91 79ms 22 days ago 97th HumanEquivalentUnit 609 92 79ms 21 Oct 2023 97th JesseNoEyes 🇺🇸 609 92 75ms 25 Sep 2024 97th Xanderium 609 92 409ms 1 Sep 2025 100th madeforlosers 571 98 281ms 4 Sep 2024 101st neel11235813 566 99 139ms 21 Oct 2023 102nd TheAtrossian 560 100 76ms 31 Jan 2025 102nd gitchaell 🇧🇴 560 100 15ms 8 Aug 2025 104th hacker112 🇸🇪 549 102 3,551ms 19 Jun 2024 105th Ashikpaul 🇮🇳 538 104 78ms 19 Oct 2024 106th Voltrifrodec 🇸🇰 533 105 80ms 19 Apr 2025 106th clayboll99 533 105 78ms 18 Jul 2025 108th tik25 528 106 79ms 29 Mar 2024 109th ccolella-mdc 471 119 139ms 11 Oct 2023 110th MWI-polygolf 467 120 14ms 6 Dec 2023 111th sciencejiho 463 121 190ms 10 Feb 2025 112th willpiam 452 124 88ms 28 Oct 2023 113th deniz-blue 444 126 964ms 21 Oct 2023 114th MyXoToD 🇩🇪 434 129 877ms 8 May 2025 115th SebassNoob 421 133 1,145ms 5 Aug 2025 116th FranciscoGibbons 406 138 21ms 15 Jul 2025 117th stephanie-flower 403 139 51ms 26 days ago 118th joedia 400 140 78ms 17 Feb 2024 119th Larento 397 141 823ms 8 Oct 2023 119th maxkhoward 397 141 79ms 11 Jan 2024 121st Protothor 386 145 1,154ms 2 Jul 2025 122nd kevinnaviapaiva 368 152 75ms 15 Feb 2025 123rd xbxbxb007 335 167 425ms 10 Jan 2024 124th nick4333 235 238 20ms 10 Apr 2024 125th tzuyuan-github 74 759 18ms 19 Jul 2024 126th KatieLG-Transpiler 🇬🇧 1 37,657 8ms 1 Oct 2023 127th Mabeloid 🇳🇴 1 45,337 9ms 3 Oct 2024 First Prev 81–127 of 127
