The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Odious 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 238th janleigh 🇵🇭 561 66 8ms 12 Jan 2023 238th AustinBratcher 561 66 9ms 10 Nov 2023 238th hippopotam00sehead 🇨🇦 561 66 9ms 12 Sep 2024 244th cbreezier 552 67 9ms 6 May 2018 244th Nuottajarvi 552 67 8ms 10 Aug 2018 244th OmegaB0t 552 67 8ms 5 Dec 2019 244th Nefsen402 552 67 8ms 7 Jan 2020 244th atsheridan 552 67 8ms 7 Feb 2020 244th sage-fulcher 552 67 9ms 20 Apr 2020 244th EFHIII 552 67 8ms 16 Aug 2020 244th genius257 552 67 9ms 12 Mar 2021 244th PlutonianHacker 552 67 9ms 2 May 2021 244th null-tangent 552 67 8ms 18 Aug 2022 244th a6166231 🇨🇳 552 67 8ms 25 Jun 2025 255th cryosis7 544 68 9ms 19 Dec 2018 255th tonystr 544 68 9ms 11 Aug 2019 255th ioioii 544 68 9ms 15 Dec 2019 255th pbarath 544 68 8ms 16 May 2021 255th Y0UR-U5ERNAME 544 68 8ms 5 Sep 2021 255th HarryAllen1 544 68 9ms 12 May 2023 261st WIPocket 536 69 9ms 29 Dec 2018 261st blucky36 536 69 8ms 27 Feb 2019 261st tjbcg 536 69 9ms 8 Apr 2019 261st Kibble 536 69 8ms 10 Jul 2020 261st bbb651 🇮🇱 536 69 9ms 1 Dec 2020 261st richard-oelze 🇩🇪 536 69 9ms 21 May 2021 261st ShiraJoseph 🇺🇸 536 69 8ms 18 Feb 2023 261st adamnielson42 🇺🇸 536 69 9ms 25 Apr 2023 269th robertDurst 529 70 8ms 8 Nov 2017 269th iamsolarpowered 529 70 8ms 8 Dec 2017 269th biinari 529 70 9ms 27 Mar 2018 269th RubenNL 529 70 8ms 23 Jul 2018 269th sgtdck 529 70 8ms 16 Oct 2018 269th GusGold 529 70 8ms 17 Nov 2020 269th Gaspar-Cdv 529 70 8ms 11 Jun 2021 269th ethandhunt 529 70 8ms 19 Sep 2021 269th TotoAJ 529 70 8ms 12 Dec 2023 269th HumanoidCPU 529 70 10ms 30 Apr 2024 279th SiddharthShyniben 521 71 8ms 15 Aug 2021 279th MFazio23 521 71 8ms 30 Nov 2022 279th andrewl64 521 71 8ms 18 Jan 2024 282nd minerGolfer 514 72 9ms 13 May 2018 282nd dapper-gh 514 72 8ms 17 Nov 2018 282nd azka1368 514 72 8ms 24 Nov 2023 282nd Voltrifrodec 🇸🇰 514 72 8ms 17 Apr 2025 282nd SebassNoob 514 72 9ms 28 Aug 2025 287th Garklein 🇨🇦 507 73 8ms 6 Jan 2022 288th ly0va 500 74 8ms 6 Jan 2019 288th marekMin 500 74 8ms 25 Jun 2019 288th spencersolberg 500 74 8ms 2 Sep 2021 288th delgoodie 500 74 8ms 26 Aug 2022 292nd ceagon 487 76 9ms 12 Jul 2024 293rd dukeaccent 🇫🇮 481 77 9ms 16 Dec 2022 294th valgardg 🇮🇸 474 78 8ms 13 Aug 2021 295th JRaspass 🇬🇧 468 79 8ms 7 Jul 2020 295th gnlow 🇰🇷 468 79 9ms 14 Sep 2020 295th jn-lp 🇺🇦 468 79 8ms 1 Nov 2020 295th SpareManiKatti 468 79 9ms 14 Oct 2021 295th Ploverums 468 79 9ms 29 Sep 2022 295th hacker19374 468 79 9ms 8 Mar 2023 301st Alice-Cheshire 457 81 8ms 26 Feb 2018 301st 7JoeEdwards 457 81 9ms 3 Aug 2019 301st AlanConstantino 457 81 8ms 1 Sep 2020 301st funkyfliam 457 81 8ms 1 Oct 2020 301st GolfingSuccess 🇬🇷 457 81 9ms 21 Oct 2020 301st KatieLG-Transpiler 🇬🇧 457 81 9ms 23 Jun 2022 301st hacker112 🇸🇪 457 81 9ms 20 Jun 2024 301st deancureton 457 81 9ms 30 Dec 2024 309th TheRealOhead 🇺🇸 446 83 9ms 23 Nov 2022 309th jorbDehmel 🇺🇸 446 83 8ms 24 Apr 2023 309th msbranicky 446 83 8ms 7 Sep 2023 312th prokopiff 440 84 9ms 19 Jan 2018 312th ajc2 440 84 8ms 1 May 2018 314th xShadowBlade 430 86 9ms 19 Nov 2024 315th Caylyn 425 87 9ms 22 Dec 2018 316th johnsudaar 407 91 9ms 30 Jul 2019 316th cbrandsma-cs 407 91 8ms 10 Jun 2021 318th kevinnaviapaiva 402 92 9ms 26 Feb 2025 319th StronkCheese 🇺🇸 394 94 8ms 1 Feb 2023 320th Michal-Miky-Jankovsky 381 97 8ms 4 May 2020 First Prev 241–320 of 340 Next Last