The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
√2 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 780th thisishowmymindworks 🇳🇴 707 68 47ms 14 Oct 2020 780th davidverweij 707 68 12ms 21 Oct 2020 780th martinsifrar 707 68 12ms 23 Oct 2020 780th KatieLG 🇬🇧 707 68 12ms 1 Nov 2020 780th Dazza314 🇬🇧 707 68 11ms 6 Nov 2020 780th austinrwarner 707 68 12ms 25 Dec 2020 780th Tess2662 707 68 12ms 11 Jan 2021 780th fynnkroeger 707 68 11ms 20 Jan 2021 780th ydevor 🇮🇱 707 68 12ms 22 Feb 2021 780th asadullayev 707 68 12ms 3 Mar 2021 780th orifu 707 68 11ms 19 Mar 2021 780th josephjojoe 707 68 12ms 19 Mar 2021 780th enbyte 707 68 12ms 21 May 2021 780th harrymwilkins 🇬🇧 707 68 12ms 18 Jul 2021 780th RYNO8 707 68 12ms 7 Aug 2021 780th ngocbd 🇻🇳 707 68 12ms 31 Aug 2021 780th potato-jackson 707 68 12ms 6 Sep 2021 780th ToE42 707 68 11ms 7 Sep 2021 780th ehulinsky 🇺🇸 707 68 14ms 16 Sep 2021 780th redbeancola 707 68 12ms 11 Oct 2021 780th walterfeyman 707 68 12ms 30 Oct 2021 780th xy3 🇮🇪 707 68 12ms 18 Nov 2021 780th sleepyStick 707 68 12ms 7 Dec 2021 780th akshatj27 🇦🇶 707 68 12ms 11 Jan 2022 780th Bonjour27891 🇻🇳 707 68 11ms 10 Feb 2022 780th LeeCamp 707 68 12ms 15 Feb 2022 780th SomeKitten 🇺🇸 707 68 12ms 20 Aug 2022 780th suwat513 707 68 11ms 23 Sep 2022 780th ValentinCassayre 707 68 12ms 9 Oct 2022 780th aksyristos 707 68 12ms 30 Oct 2022 780th tpasfieldERAU 707 68 12ms 9 Nov 2022 780th Omega65536 🇩🇪 707 68 11ms 23 Nov 2022 780th jfallon1997 707 68 12ms 3 Jan 2023 780th Smoncko 707 68 12ms 1 Feb 2023 780th DragonaireM 707 68 12ms 6 Feb 2023 780th m3nt0ras 🇬🇷 707 68 12ms 16 Feb 2023 780th crispshaker 707 68 23ms 18 Mar 2023 780th MiranDaniel 🇨🇿 707 68 11ms 29 Apr 2023 780th sd3b 707 68 11ms 1 May 2023 780th ZoeyKD 707 68 12ms 14 May 2023 780th Ripick 707 68 12ms 22 May 2023 780th msbranicky 707 68 12ms 10 Jul 2023 780th cingulataluke 707 68 12ms 26 Aug 2023 780th bac0id 707 68 11ms 20 Sep 2023 780th Stockoh 🇫🇷 707 68 12ms 5 Nov 2023 780th keelimeguy 🇺🇸 707 68 11ms 6 Nov 2023 780th firegene 🇮🇪 707 68 11ms 24 Nov 2023 780th m42km 707 68 12ms 8 Dec 2023 780th zwxzwxzwx21 707 68 12ms 13 Dec 2023 780th epic-programmer-guy 707 68 11ms 17 Dec 2023 780th smokestacklightnin 🇺🇸 707 68 12ms 29 Dec 2023 780th Dataen 707 68 12ms 12 Jan 2024 780th scpchicken 🇵🇼 707 68 12ms 1 Feb 2024 780th Just4FunCoder 707 68 12ms 26 Feb 2024 780th roupiq 🇵🇱 707 68 11ms 27 Feb 2024 780th sultan 707 68 11ms 9 Mar 2024 780th vgamula 🇺🇦 707 68 12ms 18 May 2024 780th stertooy 🇧🇪 707 68 11ms 11 Jun 2024 780th LHLaurini 🇧🇷 707 68 12ms 5 Jul 2024 780th codingisgreatbutiamnot 707 68 15ms 14 Jul 2024 780th HumanoidCPU 707 68 12ms 29 Aug 2024 780th voytxt 🇨🇿 707 68 12ms 13 Sep 2024 780th starfihs 707 68 12ms 26 Feb 2025 780th gigaprofisi 🇺🇸 707 68 11ms 2 Mar 2025 780th 0dyse 707 68 12ms 29 Apr 2025 780th codewrite 🇬🇧 707 68 12ms 7 May 2025 780th Voltrifrodec 🇸🇰 707 68 11ms 14 May 2025 780th JOrE-Softwares 707 68 12ms 21 May 2025 780th BenjaminHGong 707 68 12ms 23 May 2025 780th sainiayush 707 68 12ms 14 Jul 2025 780th GoldStar184 707 68 12ms 17 Jul 2025 780th addmai 707 68 12ms 26 Jul 2025 780th cthierfelder 🇲🇨 707 68 12ms 7 Aug 2025 780th Upload-and-View 🇺🇦 707 68 12ms 9 Aug 2025 780th Andrey2001 707 68 12ms 7 days ago 876th TheRealOhead 🇺🇸 707 71 26ms 31 Mar 2023 876th Protothor 707 71 20ms 9 Jul 2025 876th iczelia 🇩🇪 707 71 20ms 10 Oct 2025 879th LHLaurini 🇧🇷 706 84 119ms 5 Jul 2024 880th JunkIce 704 65 364ms 13 Mar 2025 First Prev 801–880 of 2,827 Next Last
