The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Evil 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 398th guptaniraj93 420 88 9ms 26 Jun 2023 398th lukehatcher 🇺🇸 420 88 9ms 6 Jun 2024 398th anter69 🇭🇺 420 88 9ms 18 Sep 2024 404th stanley-c-so 416 89 9ms 4 Oct 2019 404th syedad218 416 89 9ms 12 Jul 2023 406th sech1p 🇵🇱 411 90 9ms 4 Jul 2021 406th kevinnaviapaiva 411 90 8ms 26 Feb 2025 408th Enkuryo 🇩🇪 407 91 9ms 27 Jul 2021 409th xShadowBlade 402 92 8ms 19 May 2024 410th SpareManiKatti 398 93 9ms 9 Sep 2021 411th Michal-Miky-Jankovsky 394 94 9ms 4 May 2020 411th StronkCheese 🇺🇸 394 94 9ms 1 Feb 2023 411th nickforddev 394 94 8ms 28 Nov 2023 411th nakatchi 394 94 9ms 17 Apr 2024 415th davidbutt 389 95 8ms 26 Jul 2018 416th McErer 385 96 8ms 11 Jan 2019 416th hacker19374 385 96 8ms 7 Mar 2023 418th Papa-Tori 378 98 8ms 13 Jun 2018 418th SirHig 378 98 9ms 2 Jan 2019 420th ptforness 374 99 9ms 31 Dec 2022 421st jonot-cyber 370 100 8ms 16 Jun 2019 421st Eldrac 370 100 9ms 10 May 2020 423rd retrohun 363 102 9ms 21 Dec 2018 423rd xkacer 🇨🇿 363 102 9ms 22 Nov 2020 423rd mothcolada 🇺🇸 363 102 9ms 5 Dec 2020 423rd Anonymousellama21 363 102 8ms 3 Jun 2021 423rd Jonatan6 🇩🇰 363 102 9ms 28 Aug 2021 423rd mokymok 🇺🇸 363 102 8ms 9 Nov 2021 423rd Mabeloid 🇳🇴 363 102 9ms 17 Sep 2024 430th Cr3aHal0 359 103 8ms 27 Jun 2019 430th KamilKoperek 359 103 8ms 24 Mar 2023 430th Schmitt-Very-Cool 359 103 8ms 31 Jul 2023 433rd TrAyZeN 356 104 9ms 10 Nov 2019 433rd MFogleman 356 104 9ms 10 Jun 2020 435th adrian-abit 343 108 8ms 20 Aug 2024 436th dcure73 339 109 8ms 7 Jun 2019 437th marekMin 336 110 9ms 10 Jun 2019 438th foxfabi 319 116 9ms 23 Dec 2020 439th MyXoToD 🇩🇪 289 128 8ms 2 Jul 2024 440th k4rli 239 155 9ms 20 Jan 2021 440th PaulCouthouis 239 155 9ms 9 Nov 2022 442nd deryilz 209 177 8ms 4 Jan 2023 443rd AngieD8615 197 188 8ms 11 Apr 2020 444th seanleken 179 207 9ms 3 Oct 2019 445th zbaklund 168 220 9ms 2 Aug 2018 446th evertonfraga 165 224 9ms 6 Dec 2019 447th rizwankhanxyz 157 235 9ms 13 Jul 2024 448th rhnh 134 276 9ms 31 Jul 2019 449th Yen-Peng 126 294 9ms 14 Jul 2020 450th tarikmedjber 81 455 9ms 10 Jul 2019 First Prev 401–450 of 450
