The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
π 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 637th jared-hughes 680 60 42ms 12 Sep 2022 637th 4hg 🇺🇸 680 60 49ms 29 Dec 2022 637th BREMAUCY 🇫🇷 680 60 48ms 27 Mar 2024 637th DialFrost 🇸🇬 680 60 53ms 14 Mar 2025 645th kejcao 🇨🇦 680 177 83ms 11 May 2024 646th dokutan 680 196 3ms 12 Aug 2024 647th ovs-code 🇩🇪 678 118 2,728ms 16 Aug 2023 648th kejcao 🇨🇦 678 151 4ms 10 May 2024 648th snoozingnewt 🇨🇦 678 151 4ms 2 Jun 2024 650th CaedenHarper 🇨🇦 677 66 817ms 10 Sep 2025 650th albanian-laundromat 677 66 822ms 12 Sep 2025 652nd yokasuretsu 677 84 11ms 14 Apr 2018 653rd fitzdotlol 🇺🇸 677 86 11ms 29 Mar 2022 653rd Lv0Sys 🇵🇱 677 86 12ms 26 days ago 655th MeWhenI 🇻🇦 676 37 32ms 29 Aug 2023 656th SirBogman 🇺🇸 676 86 849ms 21 Feb 2024 657th SirBogman 🇺🇸 675 152 43ms 3 Jun 2025 658th rak1507 🇬🇧 674 44 467ms 9 Jan 2021 658th Andriamanitra 🇫🇮 674 44 209ms 23 Sep 2022 658th TheLastZombie 674 44 2,104ms 27 Jun 2024 661st bend-n 673 152 3ms 28 Jan 2024 661st prestosilver 🇺🇸 673 152 22ms 21 days ago 663rd marcin7Cd 672 97 167ms 13 Mar 2021 664th Ripick 672 202 418ms 31 Jul 2024 665th Herbert00709 🇵🇱 670 40 99ms 5 May 2024 666th Sam-Vrgl 670 87 10ms 13 May 2025 666th 52525rr 670 87 11ms 12 Jun 2025 666th JOrE20 🇺🇸 670 87 16ms 4 Nov 2025 669th primo-ppcg 🇹🇭 669 52 14ms 29 Nov 2020 669th trinityy-7 669 52 37ms 14 Mar 2024 671st Bulmenisaurus 669 85 1,915ms 19 Mar 2025 671st Lv0Sys 🇵🇱 669 85 11ms 5 Jun 2025 673rd m-tkach 🇺🇦 669 180 555ms 26 May 2022 673rd MeWhenI 🇻🇦 669 180 82ms 21 May 2023 675th jaredcrystal 🇺🇸 668 61 51ms 18 Sep 2018 675th meenie 668 61 44ms 14 Mar 2021 675th gilufin 668 61 43ms 31 May 2021 675th emgordon154 668 61 48ms 23 Dec 2021 675th Haksell 🇦🇶 668 61 42ms 22 Feb 2023 675th 3dm4n 🇫🇮 668 61 43ms 2 Mar 2024 675th Yewzir 🇧🇪 668 61 40ms 9 Mar 2024 675th olleicua 🇺🇸 668 61 40ms 13 Mar 2024 675th edsrzf 🇳🇿 668 61 57ms 15 Oct 2024 675th tatzyr 🇯🇵 668 61 39ms 26 Dec 2024 675th blaztoma 🇱🇹 668 61 54ms 12 Oct 2025 686th MeWhenI 🇻🇦 668 200 3,065ms 3 Sep 2023 687th MeWhenI 🇻🇦 667 76 278ms 28 Jan 2023 688th janbehrens 🇩🇪 665 181 412ms 15 May 2023 688th oceko 665 181 427ms 13 Feb 2024 690th scpchicken 🇵🇼 664 57 3,534ms 13 Feb 2023 691st Pimentero 🇷🇺 662 88 10ms 2 Apr 2021 691st jansekulowicz 662 88 10ms 8 May 2022 693rd yzhs 🇩🇪 661 86 30ms 25 Oct 2020 693rd FCORMERAIS 661 86 10ms 5 Mar 2024 695th Bubbler-4 661 88 2,085ms 27 Jan 2022 696th anter69 🇭🇺 661 95 951ms 22 Feb 2023 697th DialFrost 🇸🇬 660 155 3ms 6 Sep 2024 698th voytxt 🇨🇿 659 45 2,164ms 19 May 2022 699th rucin93 🇵🇱 659 181 540ms 24 Sep 2025 699th namelessiw 659 181 464ms 15 Nov 2025 701st stefangimmillaro 659 208 155ms 21 Oct 2023 702nd vonagam 658 62 50ms 9 Nov 2017 702nd sapphyrus 658 62 47ms 4 Aug 2019 702nd proton 🇩🇪 658 62 43ms 8 Jun 2020 702nd hiddicop 🇸🇪 658 62 55ms 23 Jan 2021 702nd m-tkach 🇺🇦 658 62 41ms 12 Dec 2022 702nd LostSyntax21 🇬🇧 658 62 40ms 22 Aug 2024 702nd Lv0Sys 🇵🇱 658 62 43ms 5 Jun 2025 702nd RaBa21 🇭🇺 658 62 44ms 19 Jul 2025 702nd trinityy-7 658 62 45ms 29 Jul 2025 711th taklam 655 89 10ms 27 May 2020 711th xyangst 655 89 10ms 8 Oct 2024 711th gigaprofisi 🇺🇸 655 89 79ms 25 Jul 2025 714th MeWhenI 🇻🇦 655 183 51ms 17 Feb 2023 715th CaedenHarper 🇨🇦 652 183 751ms 30 Oct 2025 715th MeWhenI 🇻🇦 652 183 435ms 7 Nov 2025 717th bendiscz 652 223 305ms 20 Apr 2020 717th CaedenHarper 🇨🇦 652 223 282ms 20 Nov 2025 719th emgordon154 651 105 43ms 10 Dec 2024 720th AlephSquirrel 650 206 148ms 3 Aug 2023 First Prev 641–720 of 3,978 Next Last