The Calendar hole will go live in approximately 2 days. Why not try and solve it ahead of time?
𝑒 in all languages 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 634th mathisfun271 783 60 9ms 13 Feb 2024 634th jipsong 🇩🇪 783 60 9ms 22 Mar 2024 634th Herbert00709 🇵🇱 783 60 14ms 7 May 2024 634th piano-miles 783 60 10ms 2 Aug 2025 634th YAJUE114514 783 60 9ms 18 days ago 646th iczelia 🇩🇪 781 106 4ms 21 Sep 2025 647th CaedenHarper 🇨🇦 779 162 256ms 1 Nov 2025 648th emgordon154 778 71 949ms 10 May 2025 649th jacobly0 🇺🇸 776 102 78ms 10 Oct 2023 650th stefangimmillaro 776 105 100ms 3 Oct 2023 651st m-tkach 🇺🇦 775 210 4,787ms 15 Jan 2025 652nd jacobly0 🇺🇸 774 93 232ms 2 Oct 2023 653rd luuumine 🇫🇷 774 136 122ms 17 Nov 2025 654th ovs-code 🇩🇪 773 108 172ms 22 Feb 2025 655th MeWhenI 🇻🇦 773 132 460ms 7 Nov 2025 656th postie77 772 116 397ms 17 May 2023 657th CaedenHarper 🇨🇦 771 31 43ms 16 Jul 2025 658th Shanethegamer 🇺🇸 771 49 51ms 26 May 2022 658th DialFrost 🇸🇬 771 49 43ms 31 May 2024 658th lacrosse 771 49 99ms 29 Nov 2025 661st sean-niemann 🇺🇸 771 125 186ms 21 Mar 2025 662nd cubed-guy 770 61 11ms 13 Feb 2022 662nd snydej 770 61 10ms 3 Dec 2024 664th SirBogman 🇺🇸 769 75 1,249ms 29 Jan 2024 664th DialFrost 🇸🇬 769 75 1,294ms 10 Mar 2025 666th annaproxy 768 69 114ms 12 Jan 2022 667th MeWhenI 🇻🇦 768 106 102ms 31 Jul 2023 668th daniel-pedersen 🇸🇪 766 63 12ms 6 Mar 2022 668th HamzaM3 766 63 9ms 6 Mar 2022 668th FlorianCassayre 🇫🇷 766 63 11ms 4 Jun 2024 671st Shanethegamer 🇺🇸 766 101 468ms 2 Mar 2022 672nd iczelia 🇩🇪 764 133 64ms 21 Sep 2025 673rd acotis 763 138 132ms 7 Jun 2025 674th kmathis22 762 134 465ms 23 Oct 2025 675th latvianfarmer17 🇱🇻 759 40 193ms 20 Jul 2023 676th MeWhenI 🇻🇦 759 118 412ms 8 Dec 2022 677th georgehulme 758 62 17ms 5 Oct 2022 677th Pyroan 758 62 17ms 14 May 2025 679th stefangimmillaro 758 117 47ms 26 Apr 2025 679th SirBogman 🇺🇸 758 117 41ms 3 Jun 2025 681st flawr 757 70 125ms 1 Jan 2019 682nd jipsong 🇩🇪 757 73 878ms 8 Apr 2025 683rd sean-niemann 🇺🇸 757 80 106ms 23 Jul 2023 684th cure-honey 🇯🇵 756 167 271ms 23 Jun 2021 684th targrik 756 167 277ms 4 Jul 2025 686th jared-hughes 755 50 48ms 20 Jan 2023 686th jipsong 🇩🇪 755 50 39ms 8 Apr 2025 688th ovs-code 🇩🇪 754 74 11ms 10 Dec 2023 689th stefangimmillaro 752 168 267ms 21 Oct 2024 690th snoozingnewt 🇨🇦 750 96 342ms 22 Nov 2025 691st MeWhenI 🇻🇦 749 84 29ms 2 Oct 2022 692nd DialFrost 🇸🇬 747 32 47ms 15 Mar 2025 693rd Herbert00709 🇵🇱 747 60 419ms 13 May 2024 694th somebody1234 746 63 28ms 2 Mar 2019 694th jiaminglimjm 🇲🇾 746 63 16ms 9 Jan 2021 694th dsh0 746 63 9ms 9 Jun 2022 694th NDR0216 🇹🇼 746 63 16ms 17 Feb 2023 694th fgrosshans 🇫🇷 746 63 9ms 4 May 2025 699th kg583 🇺🇸 746 118 152ms 5 Oct 2025 700th annaproxy 746 120 399ms 12 Jan 2023 700th CaedenHarper 🇨🇦 746 120 363ms 19 Oct 2025 702nd albanian-laundromat 745 56 722ms 12 Sep 2025 703rd MeWhenI 🇻🇦 745 65 137ms 3 Aug 2024 704th jared-hughes 745 137 451ms 24 Sep 2025 705th MeWhenI 🇻🇦 743 75 42ms 14 Feb 2025 706th thospel 742 42 144ms 29 May 2018 707th CatsAreFluffy 742 65 9ms 20 Dec 2022 707th alexsave 742 65 8ms 4 Nov 2025 709th prplz 🇦🇺 741 51 46ms 15 Jun 2020 709th Irratix 🇳🇱 741 51 41ms 1 Jul 2022 711th DialFrost 🇸🇬 741 83 3,999ms 19 Nov 2024 712th rifatx 740 121 439ms 15 Jul 2024 713th targrik 739 84 2,867ms 21 Jan 2025 714th MeWhenI 🇻🇦 738 190 1,757ms 22 Apr 2024 715th stassats 737 52 16ms 27 Apr 2018 715th GrayJoKing 🇦🇺 737 52 16ms 17 Dec 2020 715th Lydxn 🇨🇦 737 52 16ms 12 Oct 2021 715th AlephSquirrel 737 52 17ms 6 Feb 2024 719th ian-h-chamberlain 🇺🇸 736 143 128ms 17 Nov 2022 720th Constructor7 734 64 9ms 22 Feb 2018 First Prev 641–720 of 3,376 Next Last