The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Lucky Numbers 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 641st neihousaigaai 599 187 281ms 22 Oct 2024 642nd rucin93 🇵🇱 597 85 169ms 13 Aug 2024 643rd 09cf 597 114 15ms 21 Sep 2023 644th edsrzf 🇳🇿 596 105 159ms 29 May 2025 645th MichalMarsalek 🇨🇿 595 85 68ms 1 Mar 2022 645th rak1507 🇬🇧 595 85 11ms 21 May 2022 645th LeeCamp 595 85 90ms 11 Jan 2023 645th Terobero 595 85 10ms 23 Aug 2024 645th Deedogg 595 85 41ms 30 Oct 2025 650th strout 595 106 528ms 17 Aug 2022 651st tatzyr 🇯🇵 594 75 94ms 11 Mar 2025 652nd Re-Adventures 🇮🇳 591 154 153ms 20 Jul 2023 653rd junkondo-jp 589 97 30ms 25 Jun 2024 653rd CaedenHarper 🇨🇦 589 97 19ms 27 Jan 2025 655th AkashTandon167 588 86 11ms 18 Mar 2022 655th yokasuretsu 588 86 11ms 7 Jan 2025 657th DaCuteRaccoon 588 326 824ms 1 Dec 2022 658th emgordon154 587 47 51ms 3 Nov 2024 659th MeWhenI 🇻🇦 587 110 15ms 21 Jul 2023 660th albanian-laundromat 587 137 89ms 4 Sep 2025 661st trinityy-7 583 98 13ms 17 Mar 2024 661st snoozingnewt 🇨🇦 583 98 19ms 29 Sep 2025 661st iczelia 🇩🇪 583 98 18ms 17 Oct 2025 664th keelimeguy 🇺🇸 583 192 268ms 28 Apr 2025 665th msbranicky 581 87 18ms 23 Jul 2023 666th kimbo 🇺🇸 580 193 268ms 13 Jan 2023 667th MeWhenI 🇻🇦 579 87 1,820ms 28 Jan 2023 668th MeWhenI 🇻🇦 579 155 44ms 4 Sep 2024 669th CaedenHarper 🇨🇦 579 331 340ms 27 Jan 2025 670th Shanethegamer 🇺🇸 578 117 35ms 12 Sep 2022 671st CaedenHarper 🇨🇦 577 194 275ms 17 days ago 672nd albanian-laundromat 577 332 3,099ms 12 days ago 673rd 5cw 🇺🇸 575 48 7ms 10 Apr 2023 674th guilhem-roy 🇫🇷 575 88 91ms 1 Mar 2022 674th michelebastione 🇮🇹 575 88 83ms 2 Mar 2022 676th MeWhenI 🇻🇦 573 101 963ms 15 Sep 2025 677th 77Tigers 573 110 319ms 29 May 2024 677th iczelia 🇩🇪 573 110 274ms 17 Oct 2025 679th emgordon154 572 100 37ms 9 Aug 2024 679th advl 572 100 84ms 14 Feb 2025 681st Troon 568 89 39ms 29 Sep 2022 681st b10011 🇫🇮 568 89 35ms 8 Jan 2023 681st AbhilashaTandon 568 89 11ms 24 Sep 2023 681st eddvrs 568 89 10ms 20 Dec 2023 685th emgordon154 568 160 210ms 5 Mar 2025 686th a6166231 🇨🇳 566 101 11ms 5 Jun 2025 687th MeWhenI 🇻🇦 566 149 42ms 6 Jun 2023 688th KatieLG 🇬🇧 565 109 178ms 22 Jan 2023 689th KatieLG 🇬🇧 565 198 373ms 22 Jan 2023 690th Shanethegamer 🇺🇸 564 150 96ms 4 Oct 2024 691st rak1507 🇬🇧 563 49 2ms 2 Mar 2022 692nd jfallon1997 562 90 31ms 7 Sep 2022 692nd xDragoxboi 562 90 12ms 30 Jun 2025 692nd jacekwladzinski 562 90 11ms 5 Oct 2025 695th KatieLG 🇬🇧 562 142 472ms 13 Nov 2022 696th janbehrens 🇩🇪 561 99 123ms 2 Jul 2023 697th DaCuteRaccoon 561 102 17ms 30 Nov 2022 697th dylanarmstrong 561 102 11ms 21 Jan 2024 697th acollett89 561 102 29ms 18 Jul 2025 700th heanyang1 560 200 260ms 29 May 2025 701st NickTheEASDude 🇺🇸 559 121 16ms 1 May 2024 702nd madex 🇩🇪 558 122 3ms 29 Mar 2022 703rd HumanoidCPU 557 80 35ms 6 Nov 2024 704th h3ra993huskp 🇯🇵 557 163 494ms 20 days ago 705th kkoenig 557 201 274ms 7 Sep 2025 706th SirFireball3521 556 79 1,093ms 15 Mar 2023 707th commandblockguy 🇺🇸 556 91 102ms 21 Sep 2022 707th MaxElf999 556 91 3,023ms 28 Sep 2022 707th fkantelberg 556 91 54ms 7 Aug 2023 707th sultan 556 91 29ms 5 Mar 2024 711th HumanoidCPU 556 119 133ms 7 Nov 2024 712th Lv0Sys 🇵🇱 555 103 32ms 14 days ago 713th msbranicky 554 87 473ms 17 Jan 2024 714th HumanoidCPU 554 202 268ms 26 Aug 2024 715th albanian-laundromat 554 260 1,952ms 23 Oct 2025 716th varhammer 🇷🇺 553 153 210ms 13 Dec 2023 717th CatsAreFluffy 553 157 78ms 10 Jan 2023 718th Ailko 🇧🇪 550 92 10ms 6 May 2022 718th ComputerKWasTaken 🇺🇸 550 92 11ms 23 Oct 2024 720th TheLazySquid 550 104 178ms 26 Sep 2024 First Prev 641–720 of 1,527 Next Last