The Calendar hole will go live in approximately 2 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 481st primo-ppcg 🇹🇭 869 114 41ms 23 Jun 2022 482nd DialFrost 🇸🇬 869 153 32ms 28 Oct 2024 483rd jmerle 🇳🇱 868 54 17ms 22 Jan 2022 483rd Shanethegamer 🇺🇸 868 54 17ms 12 Feb 2023 483rd Yewzir 🇧🇪 868 54 16ms 1 May 2023 483rd SB-945 868 54 16ms 17 Jul 2023 483rd starfihs 868 54 16ms 20 Jul 2024 483rd fkantelberg 868 54 16ms 14 Jul 2025 489th ovs-code 🇩🇪 868 69 5ms 3 Feb 2023 490th Steffan153 🇫🇮 868 94 6ms 30 Aug 2024 491st error256 867 64 8ms 1 Jan 2025 492nd Steffan153 🇫🇮 866 91 172ms 31 Aug 2024 493rd SirBogman 🇺🇸 866 102 407ms 21 Feb 2024 494th Herbert00709 🇵🇱 866 117 61ms 4 Apr 2025 495th ovs-code 🇩🇪 861 71 3,253ms 30 Nov 2024 496th edsrzf 🇳🇿 860 48 752ms 4 Sep 2025 497th DialFrost 🇸🇬 860 70 723ms 28 Aug 2024 498th xsot 🇸🇬 859 72 2,927ms 7 Sep 2024 499th xsot 🇸🇬 859 95 6ms 23 Nov 2025 500th SirBogman 🇺🇸 859 118 61ms 20 Feb 2024 500th jared-hughes 859 118 62ms 18 Sep 2024 502nd prplz 🇦🇺 858 56 9ms 14 Jun 2020 502nd tomtheisen 🇺🇸 858 56 14ms 8 Oct 2020 502nd AlephSquirrel 858 56 9ms 10 Feb 2023 505th rucin93 🇵🇱 857 92 88ms 3 Jul 2025 506th clockworknazo 856 70 265ms 19 Oct 2023 507th lynn 855 137 62ms 4 Aug 2023 508th GrayJoKing 🇦🇺 854 116 43ms 2 Jul 2024 509th orthoplex 🇨🇽 853 44 41ms 31 Mar 2022 510th GrayJoKing 🇦🇺 853 45 30ms 5 Jun 2025 511th MeWhenI 🇻🇦 853 119 1,049ms 16 Dec 2024 512th Ripick 853 126 207ms 24 Jun 2024 513th edre 852 55 10ms 2 May 2018 513th prplz 🇦🇺 852 55 10ms 14 Jun 2020 513th TFeld00 🇩🇰 852 55 10ms 4 Nov 2020 513th Irratix 🇳🇱 852 55 10ms 7 May 2022 513th btjones0 852 55 10ms 15 Jul 2022 513th wen1now 852 55 14ms 7 Nov 2023 513th LostSyntax21 🇬🇧 852 55 11ms 22 Aug 2024 513th madeforlosers 852 55 12ms 5 Sep 2024 513th 5cw 🇺🇸 852 55 12ms 17 Nov 2024 513th agreegious 852 55 11ms 16 Mar 2025 513th AstroOrbis 852 55 12ms 1 Jul 2025 513th piano-miles 852 55 10ms 2 Aug 2025 525th primo-ppcg 🇹🇭 849 98 208ms 10 Dec 2022 526th MeWhenI 🇻🇦 849 138 43ms 7 Jun 2023 527th DialFrost 🇸🇬 848 93 163ms 18 Oct 2024 528th emplv 🇱🇻 847 73 1,366ms 26 Jan 2023 528th Steffan153 🇫🇮 847 73 2,411ms 29 Aug 2024 530th dvargas46 🇺🇸 845 72 1,550ms 9 Mar 2023 530th DialFrost 🇸🇬 845 72 1,920ms 19 Sep 2024 532nd m-tkach 🇺🇦 844 120 61ms 15 Dec 2022 533rd jbt 843 57 9ms 26 Dec 2023 533rd madeforlosers 843 57 12ms 5 Sep 2024 533rd LostSyntax21 🇬🇧 843 57 11ms 1 Dec 2024 533rd Ultra814 843 57 9ms 20 Sep 2025 537th MeWhenI 🇻🇦 843 114 108ms 15 Jul 2023 538th ovs-code 🇩🇪 840 139 453ms 27 Mar 2025 539th sean-niemann 🇺🇸 840 150 274ms 11 Jan 2025 540th Kacarott 🇦🇺 837 45 146ms 13 Sep 2024 541st Herbert00709 🇵🇱 837 56 19ms 5 May 2024 541st croc54 837 56 9ms 1 Dec 2024 543rd SirBogman 🇺🇸 834 45 48ms 29 Jan 2024 543rd emgordon154 834 45 36ms 10 May 2025 545th primo-ppcg 🇹🇭 834 55 12ms 30 Jan 2022 546th FortuiteMan 🇫🇷 834 59 8ms 12 Nov 2025 547th edsrzf 🇳🇿 834 96 129ms 26 days ago 547th snoozingnewt 🇨🇦 834 96 114ms 21 days ago 549th emplv 🇱🇻 834 151 282ms 26 Jan 2023 550th primo-ppcg 🇹🇭 833 24 43ms 10 Dec 2022 550th saito-ta 🇯🇵 833 24 43ms 4 Aug 2023 552nd sean-niemann 🇺🇸 833 119 78ms 21 Mar 2025 553rd andersk 🇺🇸 833 126 132ms 28 Nov 2022 554th tidalDisruptionEvent 🇨🇦 832 34 199ms 2 Apr 2023 555th MeWhenI 🇻🇦 830 122 60ms 15 Jul 2023 556th ovs-code 🇩🇪 829 34 124ms 4 Jan 2024 557th emgordon154 829 93 499ms 26 May 2025 558th MeWhenI 🇻🇦 829 152 278ms 10 Feb 2023 559th stefangimmillaro 827 127 130ms 4 Jun 2025 560th DialFrost 🇸🇬 826 50 754ms 29 Aug 2025 First Prev 481–560 of 3,341 Next Last