The Calendar hole will go live in approximately 4 days. Why not try and solve it ahead of time?
𝑒 in all languages 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 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 Chars Time Submitted 777th ImpressedByRocks 699 67 16ms 24 Jun 2022 777th Bananapants22 699 67 16ms 16 Aug 2022 777th suwat513 699 67 17ms 2 Sep 2022 777th za3k 699 67 11ms 28 Oct 2022 777th aksyristos 699 67 16ms 30 Oct 2022 777th Omega65536 🇩🇪 699 67 16ms 23 Nov 2022 777th scpchicken 🇵🇼 699 67 16ms 31 Dec 2022 777th SucukMitEi 699 67 16ms 7 Jan 2023 777th klixel 🇨🇦 699 67 16ms 21 May 2023 777th trinityy-7 699 67 16ms 13 Jun 2023 777th msbranicky 699 67 16ms 10 Jul 2023 777th Stockoh 🇫🇷 699 67 16ms 5 Nov 2023 777th smokestacklightnin 🇺🇸 699 67 17ms 29 Dec 2023 777th Dataen 699 67 18ms 12 Jan 2024 777th jfallon1997 699 67 16ms 25 Apr 2024 777th stertooy 🇧🇪 699 67 16ms 11 Jun 2024 777th JonahEMorgan 699 67 17ms 9 Nov 2024 777th desecaw13 699 67 16ms 24 Jan 2025 777th gigaprofisi 🇺🇸 699 67 16ms 2 Mar 2025 777th 0dyse 699 67 16ms 23 Apr 2025 777th codewrite 🇬🇧 699 67 16ms 25 May 2025 777th Flekay 🇩🇪 699 67 17ms 10 Jul 2025 777th sainiayush 699 67 17ms 14 Jul 2025 777th LuisGoncalves05 🇵🇹 699 67 16ms 27 Jul 2025 777th cthierfelder 🇲🇨 699 67 17ms 7 Aug 2025 777th jacekwladzinski 699 67 17ms 6 Oct 2025 777th nulzo 699 67 16ms 17 Oct 2025 777th Andrey2001 699 67 16ms 11 days ago 777th NoneTheFewer 699 67 18ms 41 hours ago 830th snoozingnewt 🇨🇦 699 96 342ms 22 Nov 2025 831st MeWhenI 🇻🇦 699 167 1,473ms 29 Mar 2025 832nd lynn 698 117 6ms 22 May 2021 833rd cywong-amino 🇭🇰 696 69 10ms 30 May 2020 833rd doge1338 696 69 52ms 22 Mar 2021 833rd coreynash 696 69 12ms 21 Mar 2024 836th m-tkach 🇺🇦 695 54 48ms 12 Dec 2022 837th trinityy-7 693 39 19ms 8 Feb 2024 838th jipsong 🇩🇪 691 65 69ms 19 Mar 2024 839th cure-honey 🇯🇵 691 152 124ms 5 Jul 2021 840th MeWhenI 🇻🇦 690 29 42ms 26 Jul 2022 840th GrayJoKing 🇦🇺 690 29 40ms 25 Aug 2022 840th emgordon154 690 29 40ms 16 Nov 2025 843rd msrawson 689 68 16ms 30 Aug 2018 843rd skps2010 689 68 16ms 1 Jan 2019 843rd rschwa6308 🇺🇸 689 68 16ms 30 Mar 2019 843rd daedals 689 68 18ms 5 Jun 2019 843rd Matistjati 689 68 17ms 2 Dec 2019 843rd jmhowl 689 68 17ms 19 Jan 2020 843rd OllieBoyne 🇬🇧 689 68 16ms 4 Jul 2020 843rd forlack 689 68 17ms 8 Nov 2021 843rd aiarzhantsev 689 68 17ms 14 Oct 2022 843rd atazzam 🇺🇸 689 68 16ms 5 Mar 2023 843rd ei14 689 68 9ms 7 May 2024 854th puyuliao 689 147 415ms 24 Oct 2023 855th lifthrasiir 🇰🇷 686 56 293ms 17 Dec 2024 856th ArmaanAS 686 70 10ms 1 Apr 2021 856th Shanethegamer 🇺🇸 686 70 10ms 26 May 2022 858th rucin93 🇵🇱 686 153 123ms 25 Aug 2024 859th 4hg 🇺🇸 685 55 89ms 16 Sep 2023 860th MeWhenI 🇻🇦 684 88 62ms 15 Jul 2023 861st sk- 683 55 50ms 12 Sep 2019 861st pilaf 🇦🇷 683 55 58ms 14 Apr 2022 863rd albanian-laundromat 682 64 389ms 9 Aug 2025 864th ktiy 682 154 129ms 11 Apr 2022 865th prplz 🇦🇺 680 56 478ms 14 Jun 2020 866th jslip 679 56 23ms 8 Sep 2018 867th knutae 🇳🇴 679 69 11ms 29 Nov 2021 867th inverseLorentz 🇦🇺 679 69 13ms 8 Oct 2023 867th CutSandstone 679 69 12ms 3 Jul 2024 867th cros107 🇦🇺 679 69 9ms 30 Dec 2024 871st cure-honey 🇯🇵 677 142 145ms 23 Jun 2021 872nd Irratix 🇳🇱 675 121 3ms 25 Dec 2021 872nd prestosilver 🇺🇸 675 121 6ms 24 Nov 2025 874th jwonagel 675 131 395ms 3 Oct 2023 875th DrPiranoid 675 150 418ms 12 Mar 2023 875th janbehrens 🇩🇪 675 150 425ms 15 May 2023 877th MeWhenI 🇻🇦 674 124 83ms 15 Jul 2023 878th MeWhenI 🇻🇦 673 56 79ms 2 Nov 2023 879th lucky-lilypad 671 151 63ms 17 Jan 2022 880th purp 670 56 48ms 13 Aug 2022 First Prev 801–880 of 3,338 Next Last