The Calendar hole will go live in approximately 2 days. Why not try and solve it ahead of time?
√2 in Python 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 241st urojony 🇵🇱 731 67 24ms 3 Jan 2021 241st tetraxile 731 67 24ms 3 Oct 2021 241st Nibamot 731 67 12ms 10 Dec 2021 241st CheeseCake628 🇳🇴 731 67 87ms 9 Feb 2023 241st GeorgeStechman 🇬🇧 731 67 46ms 6 Jan 2024 241st RandGuy 731 67 23ms 25 Jan 2024 241st Ralac07 🇦🇺 731 67 23ms 16 Feb 2024 241st inverseLorentz 🇦🇺 731 67 85ms 10 Apr 2024 241st driri85 731 67 12ms 7 Jan 2025 241st solisolu 731 67 50ms 9 Nov 2025 251st markus-rekdal 721 68 23ms 31 May 2019 251st qoqosz 721 68 12ms 6 Jun 2019 251st giacomogallina 721 68 11ms 6 Jun 2019 251st skps2010 721 68 11ms 14 Jun 2019 251st hoodadam 721 68 12ms 19 Jul 2019 251st dzhang314 721 68 12ms 14 Aug 2019 251st sk- 721 68 11ms 11 Sep 2019 251st handisb 721 68 12ms 2 Nov 2019 251st amishtal 721 68 12ms 27 Nov 2019 251st Haksell 🇦🇶 721 68 11ms 1 Dec 2019 251st Matistjati 721 68 12ms 3 Dec 2019 251st Daniel-Martin576 721 68 12ms 1 Apr 2020 251st Jviscus1 721 68 12ms 24 Apr 2020 251st GalladeGuy 🇺🇸 721 68 11ms 23 May 2020 251st aliakseikalosha 721 68 12ms 9 Jun 2020 251st Jumprocks1 721 68 12ms 11 Jun 2020 251st itiievskyi 🇺🇦 721 68 11ms 30 Jul 2020 251st dev-loop0 721 68 11ms 20 Aug 2020 251st linstr13 721 68 12ms 29 Sep 2020 251st mueller14003 721 68 12ms 8 Oct 2020 251st davidverweij 721 68 12ms 21 Oct 2020 251st martinsifrar 721 68 12ms 23 Oct 2020 251st Dazza314 🇬🇧 721 68 11ms 6 Nov 2020 251st austinrwarner 721 68 12ms 25 Dec 2020 251st Tess2662 721 68 12ms 11 Jan 2021 251st fynnkroeger 721 68 11ms 20 Jan 2021 251st ydevor 🇮🇱 721 68 12ms 22 Feb 2021 251st asadullayev 721 68 12ms 3 Mar 2021 251st orifu 721 68 11ms 19 Mar 2021 251st josephjojoe 721 68 12ms 19 Mar 2021 251st harrymwilkins 🇬🇧 721 68 12ms 18 Jul 2021 251st ngocbd 🇻🇳 721 68 12ms 31 Aug 2021 251st potato-jackson 721 68 12ms 6 Sep 2021 251st ToE42 721 68 11ms 7 Sep 2021 251st ehulinsky 🇺🇸 721 68 14ms 16 Sep 2021 251st redbeancola 721 68 12ms 11 Oct 2021 251st walterfeyman 721 68 12ms 30 Oct 2021 251st xy3 🇮🇪 721 68 12ms 18 Nov 2021 251st sleepyStick 721 68 12ms 7 Dec 2021 251st akshatj27 🇦🇶 721 68 12ms 11 Jan 2022 251st Bonjour27891 🇻🇳 721 68 11ms 10 Feb 2022 251st LeeCamp 721 68 12ms 15 Feb 2022 251st suwat513 721 68 11ms 23 Sep 2022 251st ValentinCassayre 721 68 12ms 9 Oct 2022 251st aksyristos 721 68 12ms 30 Oct 2022 251st Omega65536 🇩🇪 721 68 11ms 23 Nov 2022 251st jfallon1997 721 68 12ms 3 Jan 2023 251st Smoncko 721 68 12ms 1 Feb 2023 251st DragonaireM 721 68 12ms 6 Feb 2023 251st m3nt0ras 🇬🇷 721 68 12ms 16 Feb 2023 251st MiranDaniel 🇨🇿 721 68 11ms 29 Apr 2023 251st sd3b 721 68 11ms 1 May 2023 251st ZoeyKD 721 68 12ms 14 May 2023 251st Ripick 721 68 12ms 22 May 2023 251st msbranicky 721 68 12ms 10 Jul 2023 251st Stockoh 🇫🇷 721 68 12ms 5 Nov 2023 251st firegene 🇮🇪 721 68 11ms 24 Nov 2023 251st m42km 721 68 12ms 8 Dec 2023 251st epic-programmer-guy 721 68 11ms 17 Dec 2023 251st smokestacklightnin 🇺🇸 721 68 12ms 29 Dec 2023 251st Dataen 721 68 12ms 12 Jan 2024 251st scpchicken 🇵🇼 721 68 12ms 1 Feb 2024 251st Just4FunCoder 721 68 12ms 26 Feb 2024 251st sultan 721 68 11ms 9 Mar 2024 251st stertooy 🇧🇪 721 68 11ms 11 Jun 2024 251st codingisgreatbutiamnot 721 68 15ms 14 Jul 2024 251st voytxt 🇨🇿 721 68 12ms 13 Sep 2024 251st starfihs 721 68 12ms 26 Feb 2025 251st gigaprofisi 🇺🇸 721 68 11ms 2 Mar 2025 251st 0dyse 721 68 12ms 29 Apr 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