The Calendar hole will go live in approximately 3 hours. Why not try and solve it ahead of time?
Emirp Numbers in JavaScript in chars. 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 ArkScript 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 ArkScript 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 Chars Time Submitted 81st dorinoltean 580 100 12ms 30 Sep 2019 81st CatsAreFluffy 580 100 11ms 28 Nov 2022 81st BambooleanLogic 🇸🇪 580 100 24ms 17 Oct 2023 84th tomh1012 574 101 24ms 16 Sep 2020 84th xyangst 574 101 11ms 7 Oct 2024 84th dokutan 574 101 23ms 15 Jun 2025 87th omurakazuaki 🇯🇵 569 102 65ms 10 Feb 2021 88th jackkav 563 103 48ms 16 Apr 2018 88th randolchance 563 103 13ms 16 Jan 2023 88th dylanarmstrong 563 103 55ms 24 Jan 2024 88th KatieLG 🇬🇧 563 103 12ms 5 Oct 2025 92nd Trusiak 558 104 19ms 18 Nov 2018 92nd tianshuo 558 104 18ms 18 Jun 2019 92nd Firefox760 558 104 12ms 23 Apr 2023 92nd helbling 🇨🇭 558 104 53ms 5 May 2024 96th lukasmoellerch 547 106 18ms 15 Jan 2019 96th Mazn3k 547 106 13ms 16 Mar 2023 98th sgtdck 542 107 17ms 5 Oct 2018 98th moikaturns 🇬🇧 542 107 12ms 28 Sep 2022 100th amiralitaheri 537 108 11ms 23 Feb 2023 101st mrxz 🇳🇱 532 109 19ms 23 Jun 2019 101st trinityy-7 532 109 11ms 19 Oct 2023 103rd bac0id 527 110 13ms 29 Jun 2024 103rd Yax42 🇫🇷 527 110 20ms 15 Aug 2025 105th davegregg 523 111 29ms 27 Nov 2017 105th lazarow 523 111 15ms 16 Nov 2018 105th user189032 523 111 12ms 29 May 2019 105th daniel-pedersen 🇸🇪 523 111 33ms 6 Mar 2022 105th zakariamouhid 523 111 12ms 13 Jun 2023 110th caasinehc 518 112 10ms 16 Oct 2018 110th neihousaigaai 518 112 10ms 27 May 2021 110th HumanoidCPU 518 112 10ms 9 May 2024 113th dijs 513 113 13ms 9 Dec 2019 113th NatNgs 513 113 16ms 13 Jan 2020 113th Ivraj 513 113 11ms 10 Aug 2021 113th targrik 513 113 188ms 12 May 2025 117th FrederikHutfless 🇩🇪 509 114 13ms 22 Dec 2022 117th jmerle 🇳🇱 509 114 9ms 4 Jul 2023 119th Nuottajarvi 504 115 14ms 10 Aug 2018 119th oitio 504 115 11ms 31 May 2019 121st rodigu 500 116 17ms 14 Jun 2021 121st GeorgeStechman 🇬🇧 500 116 34ms 20 Nov 2022 121st wansacis 🇩🇪 500 116 15ms 23 Mar 2023 121st raszpi 🇭🇺 500 116 29ms 3 Sep 2023 125th skps2010 492 118 12ms 3 Jan 2019 125th Sticky-Bits 492 118 14ms 18 Apr 2019 125th Protothor 492 118 10ms 2 Jul 2025 128th alexkunin 487 119 13ms 3 Jul 2019 128th hyvyys 487 119 31ms 18 Sep 2020 128th richard-oelze 🇩🇪 487 119 13ms 24 Oct 2020 128th mobibluman 487 119 20ms 1 Mar 2022 132nd modellking 479 121 55ms 3 Jun 2020 132nd Florian-Mt 479 121 18ms 1 Aug 2024 132nd LukeBridges 🇬🇧 479 121 12ms 8 Oct 2024 132nd XenThe 🇬🇧 479 121 29ms 22 Aug 2025 136th pbarath 475 122 219ms 22 Mar 2021 137th CaedenHarper 🇨🇦 472 123 19ms 31 Aug 2025 138th tangweikun 468 124 30ms 18 Dec 2017 138th fizhes 468 124 15ms 18 Jun 2023 140th dylanpyle 464 125 23ms 4 Jun 2020 140th SebassNoob 464 125 15ms 7 Aug 2025 140th johnkiernander 464 125 45ms 18 days ago 143rd adoxography 460 126 21ms 28 Oct 2019 143rd jake-freeman 460 126 10ms 18 Mar 2020 145th Ashikpaul 🇮🇳 457 127 11ms 25 Apr 2021 145th MathisBullinger 457 127 10ms 20 Jan 2022 145th Cube14yt 457 127 12ms 17 Nov 2025 148th dee-gomma 453 128 11ms 27 Mar 2019 148th dsntzn 🇸🇰 453 128 20ms 21 Aug 2020 148th stadamdoki 453 128 15ms 20 Apr 2021 148th 823126 453 128 13ms 26 Nov 2024 152nd cmorten 450 129 15ms 31 Oct 2017 152nd alexsave 450 129 11ms 13 Nov 2025 154th mintypython 446 130 13ms 19 Oct 2018 154th goodwyna21 446 130 33ms 22 Jan 2025 156th paudr 443 131 11ms 5 May 2019 156th vanruch 443 131 19ms 15 Jun 2019 158th cbreezier 439 132 12ms 6 May 2018 158th Cr3aHal0 439 132 10ms 2 Jul 2019 160th c0d3-4-F00d 🇩🇪 436 133 14ms 30 Jun 2021 First Prev 81–160 of 255 Next Last
