The Calendar hole will go live in approximately 8 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 478th emgordon154 877 55 9ms 10 May 2025 478th 52525rr 877 55 9ms 9 Sep 2025 483rd xsot 🇸🇬 877 69 303ms 25 Aug 2024 484th primo-ppcg 🇹🇭 877 110 117ms 22 Jan 2020 485th GrayJoKing 🇦🇺 877 123 188ms 2 Feb 2024 486th error256 872 64 8ms 1 Jan 2025 487th xsot 🇸🇬 872 95 6ms 23 Nov 2025 488th primo-ppcg 🇹🇭 872 114 41ms 23 Jun 2022 489th DialFrost 🇸🇬 871 153 32ms 28 Oct 2024 490th edsrzf 🇳🇿 870 48 752ms 4 Sep 2025 491st Steffan153 🇫🇮 870 91 172ms 31 Aug 2024 492nd galloj 🇨🇿 869 685 83ms 1 Mar 2023 493rd Herbert00709 🇵🇱 868 117 64ms 4 Apr 2025 494th ovs-code 🇩🇪 866 71 3,763ms 30 Nov 2024 495th DialFrost 🇸🇬 865 70 723ms 28 Aug 2024 496th GrayJoKing 🇦🇺 862 45 30ms 5 Jun 2025 497th xsot 🇸🇬 862 72 3,546ms 7 Sep 2024 498th prplz 🇦🇺 861 56 9ms 14 Jun 2020 498th tomtheisen 🇺🇸 861 56 14ms 8 Oct 2020 498th AlephSquirrel 861 56 9ms 10 Feb 2023 501st rucin93 🇵🇱 861 92 88ms 3 Jul 2025 502nd SirBogman 🇺🇸 861 118 78ms 20 Feb 2024 502nd jared-hughes 861 118 62ms 18 Sep 2024 504th orthoplex 🇨🇽 858 44 40ms 31 Mar 2022 505th lynn 858 137 62ms 4 Aug 2023 506th GrayJoKing 🇦🇺 857 116 43ms 2 Jul 2024 507th primo-ppcg 🇹🇭 856 55 12ms 30 Jan 2022 508th MeWhenI 🇻🇦 856 119 1,049ms 16 Dec 2024 509th Ripick 856 126 207ms 24 Jun 2024 510th edre 854 55 10ms 2 May 2018 510th wen1now 854 55 14ms 7 Nov 2023 510th LostSyntax21 🇬🇧 854 55 11ms 22 Aug 2024 510th madeforlosers 854 55 12ms 5 Sep 2024 510th 5cw 🇺🇸 854 55 12ms 17 Nov 2024 510th agreegious 854 55 11ms 16 Mar 2025 510th yujh-yujh 🇬🇸 854 55 12ms 4 Apr 2025 510th AstroOrbis 854 55 12ms 1 Jul 2025 518th DialFrost 🇸🇬 852 93 163ms 18 Oct 2024 519th primo-ppcg 🇹🇭 852 98 208ms 10 Dec 2022 520th MeWhenI 🇻🇦 852 138 43ms 7 Jun 2023 521st emplv 🇱🇻 851 73 1,398ms 26 Jan 2023 521st Steffan153 🇫🇮 851 73 2,796ms 29 Aug 2024 523rd dvargas46 🇺🇸 849 72 2,147ms 9 Mar 2023 523rd DialFrost 🇸🇬 849 72 2,430ms 19 Sep 2024 525th m-tkach 🇺🇦 847 120 69ms 15 Dec 2022 526th jbt 846 57 9ms 26 Dec 2023 526th madeforlosers 846 57 12ms 5 Sep 2024 526th LostSyntax21 🇬🇧 846 57 11ms 1 Dec 2024 526th Ultra814 846 57 9ms 20 Sep 2025 530th MeWhenI 🇻🇦 846 114 108ms 15 Jul 2023 531st Kacarott 🇦🇺 845 45 146ms 13 Sep 2024 532nd tidalDisruptionEvent 🇨🇦 844 36 230ms 2 Apr 2023 533rd ovs-code 🇩🇪 843 139 453ms 27 Mar 2025 534th sean-niemann 🇺🇸 842 150 274ms 11 Jan 2025 535th SirBogman 🇺🇸 839 45 44ms 29 Jan 2024 535th emgordon154 839 45 48ms 10 May 2025 537th croc54 839 56 9ms 1 Dec 2024 538th edsrzf 🇳🇿 838 98 126ms 20 days ago 538th snoozingnewt 🇨🇦 838 98 114ms 16 days ago 540th SirBogman 🇺🇸 836 99 4ms 20 Feb 2024 540th jared-hughes 836 99 6ms 18 Sep 2024 540th Herbert00709 🇵🇱 836 99 7ms 4 Apr 2025 543rd sean-niemann 🇺🇸 836 119 78ms 21 Mar 2025 544th emplv 🇱🇻 836 151 282ms 26 Jan 2023 545th DialFrost 🇸🇬 835 50 754ms 29 Aug 2025 546th andersk 🇺🇸 835 126 132ms 28 Nov 2022 547th MeWhenI 🇻🇦 833 122 72ms 15 Jul 2023 548th primo-ppcg 🇹🇭 832 34 152ms 6 Dec 2020 549th emgordon154 832 93 499ms 26 May 2025 550th neel11235813 830 31 37ms 16 Feb 2023 550th MeWhenI 🇻🇦 830 31 37ms 16 Apr 2023 550th o0lit3 🇺🇸 830 31 37ms 7 Jun 2023 553rd FortuiteMan 🇫🇷 829 62 8ms 12 Nov 2025 554th Steffan153 🇫🇮 829 73 170ms 29 Aug 2024 555th stefangimmillaro 829 127 130ms 4 Jun 2025 556th MeWhenI 🇻🇦 827 116 19ms 21 Jul 2023 557th DialFrost 🇸🇬 826 57 27ms 24 Mar 2025 558th MeWhenI 🇻🇦 824 29 44ms 26 Jul 2022 558th GrayJoKing 🇦🇺 824 29 57ms 25 Aug 2022 558th emgordon154 824 29 38ms 16 Nov 2025 First Prev 481–560 of 3,368 Next Last