The Calendar hole will go live in approximately 13 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 319th sean-niemann 🇺🇸 918 84 510ms 7 Jun 2024 319th Steffan153 🇫🇮 918 84 510ms 21 Jul 2024 319th ovs-code 🇩🇪 918 84 502ms 21 Jul 2024 324th primo-ppcg 🇹🇭 917 89 5ms 24 Aug 2020 325th MeWhenI 🇻🇦 916 41 173ms 8 Oct 2022 325th janlelis 916 41 155ms 4 Dec 2023 325th ovs-code 🇩🇪 916 41 49ms 29 Aug 2024 328th GrayJoKing 🇦🇺 916 49 79ms 29 May 2022 328th Steffan153 🇫🇮 916 49 77ms 21 Jun 2024 330th canissimia 🇦🇶 916 265 179ms 8 Mar 2024 331st stefangimmillaro 915 60 938ms 26 Dec 2024 332nd JayXon 🇺🇸 915 105 146ms 22 Apr 2025 333rd JayXon 🇺🇸 914 91 250ms 6 Apr 2025 334th KasperKivimaeki 🇫🇮 913 111 88ms 18 Nov 2024 335th JayXon 🇺🇸 913 115 151ms 5 Apr 2025 336th MeWhenI 🇻🇦 912 54 6ms 24 days ago 337th pardouin 🇫🇷 912 67 3,947ms 4 Dec 2024 337th JayXon 🇺🇸 912 67 3,500ms 2 Jan 2025 339th JayXon 🇺🇸 911 89 101ms 16 Oct 2022 339th emplv 🇱🇻 911 89 101ms 8 Dec 2022 339th Lydxn 🇨🇦 911 89 101ms 2 Mar 2023 342nd HPWiz 🇳🇿 911 93 2,224ms 7 Mar 2025 343rd primo-ppcg 🇹🇭 911 118 151ms 6 Aug 2024 344th andersk 🇺🇸 910 28 37ms 4 Mar 2023 344th BREMAUCY 🇫🇷 910 28 36ms 25 Oct 2024 344th snoozingnewt 🇨🇦 910 28 37ms 14 Sep 2025 347th nwellnhof 🇩🇪 909 31 317ms 4 Dec 2022 347th Lydxn 🇨🇦 909 31 249ms 3 Feb 2023 349th primo-ppcg 🇹🇭 909 58 117ms 30 Dec 2018 349th xnor-gate 909 58 119ms 4 Jun 2021 349th ovs-code 🇩🇪 909 58 123ms 19 Jan 2023 352nd Steffan153 🇫🇮 909 61 17ms 18 Feb 2024 353rd sisyphus-ppcg 🇦🇺 909 68 2,619ms 29 Aug 2024 354th btnlq 909 92 43ms 24 Sep 2022 355th DialFrost 🇸🇬 909 109 51ms 23 Oct 2024 356th NewDefectus 🇮🇱 908 25 40ms 18 Dec 2021 356th jared-hughes 908 25 41ms 22 Jan 2023 358th Steffan153 🇫🇮 908 52 121ms 3 Aug 2024 358th DialFrost 🇸🇬 908 52 130ms 4 Aug 2024 358th sean-niemann 🇺🇸 908 52 125ms 6 Aug 2024 358th GrayJoKing 🇦🇺 908 52 124ms 13 Aug 2024 358th pardouin 🇫🇷 908 52 120ms 28 Sep 2024 363rd GrayJoKing 🇦🇺 908 66 340ms 1 Nov 2023 364th Steffan153 🇫🇮 908 90 23ms 29 Aug 2024 365th btnlq 907 42 267ms 1 Jan 2021 365th Lydxn 🇨🇦 907 42 245ms 4 Jan 2022 365th DialFrost 🇸🇬 907 42 261ms 7 Jun 2024 365th Steffan153 🇫🇮 907 42 255ms 10 Aug 2024 365th bitsandbeyond 🇳🇱 907 42 257ms 20 Oct 2025 370th edsrzf 🇳🇿 907 61 40ms 30 Dec 2024 370th DialFrost 🇸🇬 907 61 41ms 13 Feb 2025 370th kg583 🇺🇸 907 61 40ms 14 Feb 2025 370th zacjl 907 61 45ms 16 May 2025 374th DialFrost 🇸🇬 907 85 473ms 7 Jun 2024 375th nwellnhof 🇩🇪 907 90 6ms 25 Jan 2022 376th primo-ppcg 🇹🇭 907 179 1,142ms 4 Oct 2020 377th tayloia 🇬🇧 906 53 11ms 7 Apr 2025 378th sean-niemann 🇺🇸 906 87 171ms 19 Nov 2025 379th nwellnhof 🇩🇪 906 139 273ms 1 May 2020 379th primo-ppcg 🇹🇭 906 139 288ms 21 Sep 2020 379th Lydxn 🇨🇦 906 139 267ms 14 Jul 2021 382nd primo-ppcg 🇹🇭 905 116 128ms 5 Apr 2025 383rd DialFrost 🇸🇬 904 92 193ms 4 Sep 2024 384th primo-ppcg 🇹🇭 904 97 77ms 6 Aug 2023 385th primo-ppcg 🇹🇭 904 112 65ms 18 Jan 2022 385th nwellnhof 🇩🇪 904 112 65ms 25 Jan 2022 387th m-tkach 🇺🇦 904 147 423ms 30 Oct 2024 388th marshallward 🇺🇸 902 98 42ms 28 Jun 2023 388th DialFrost 🇸🇬 902 98 54ms 26 Apr 2025 390th GrayJoKing 🇦🇺 902 106 37ms 3 Aug 2023 391st GrayJoKing 🇦🇺 901 30 150ms 27 Jan 2021 392nd Steffan153 🇫🇮 901 90 106ms 7 May 2023 392nd DialFrost 🇸🇬 901 90 111ms 22 Aug 2024 394th billings7 🇬🇧 901 98 385ms 21 Nov 2021 394th tomtheisen 🇺🇸 901 98 394ms 21 Nov 2021 394th nwellnhof 🇩🇪 901 98 409ms 17 Jan 2022 394th JayXon 🇺🇸 901 98 404ms 20 Jun 2023 394th DialFrost 🇸🇬 901 98 412ms 22 Jul 2025 394th namelessiw 901 98 392ms 22 Jul 2025 400th m-tkach 🇺🇦 901 130 41ms 16 Dec 2023 First Prev 321–400 of 3,337 Next Last