The Calendar hole will go live in approximately 13 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 rucin93 🇵🇱 597 85 169ms 13 Aug 2024 642nd 09cf 597 114 15ms 21 Sep 2023 643rd edsrzf 🇳🇿 596 105 159ms 29 May 2025 644th MichalMarsalek 🇨🇿 595 85 68ms 1 Mar 2022 644th rak1507 🇬🇧 595 85 11ms 21 May 2022 644th LeeCamp 595 85 90ms 11 Jan 2023 644th Terobero 595 85 10ms 23 Aug 2024 644th Deedogg 595 85 41ms 30 Oct 2025 649th strout 595 106 528ms 17 Aug 2022 650th tatzyr 🇯🇵 594 75 94ms 11 Mar 2025 651st Re-Adventures 🇮🇳 591 154 153ms 20 Jul 2023 652nd junkondo-jp 589 97 30ms 25 Jun 2024 652nd CaedenHarper 🇨🇦 589 97 19ms 27 Jan 2025 654th AkashTandon167 588 86 11ms 18 Mar 2022 654th yokasuretsu 588 86 11ms 7 Jan 2025 656th DaCuteRaccoon 588 326 824ms 1 Dec 2022 657th emgordon154 587 47 51ms 3 Nov 2024 658th MeWhenI 🇻🇦 587 110 15ms 21 Jul 2023 659th albanian-laundromat 587 137 89ms 4 Sep 2025 660th trinityy-7 583 98 13ms 17 Mar 2024 660th snoozingnewt 🇨🇦 583 98 19ms 29 Sep 2025 660th iczelia 🇩🇪 583 98 18ms 17 Oct 2025 663rd keelimeguy 🇺🇸 583 192 268ms 28 Apr 2025 664th msbranicky 581 87 18ms 23 Jul 2023 665th kimbo 🇺🇸 580 193 268ms 13 Jan 2023 666th MeWhenI 🇻🇦 579 87 1,820ms 28 Jan 2023 667th MeWhenI 🇻🇦 579 155 44ms 4 Sep 2024 668th CaedenHarper 🇨🇦 579 331 340ms 27 Jan 2025 669th Shanethegamer 🇺🇸 578 117 35ms 12 Sep 2022 670th CaedenHarper 🇨🇦 577 194 275ms 15 days ago 671st albanian-laundromat 577 332 3,099ms 10 days ago 672nd 5cw 🇺🇸 575 48 7ms 10 Apr 2023 673rd guilhem-roy 🇫🇷 575 88 91ms 1 Mar 2022 673rd michelebastione 🇮🇹 575 88 83ms 2 Mar 2022 675th MeWhenI 🇻🇦 573 101 963ms 15 Sep 2025 676th 77Tigers 573 110 319ms 29 May 2024 676th iczelia 🇩🇪 573 110 274ms 17 Oct 2025 678th emgordon154 572 100 37ms 9 Aug 2024 678th advl 572 100 84ms 14 Feb 2025 680th Troon 568 89 39ms 29 Sep 2022 680th b10011 🇫🇮 568 89 35ms 8 Jan 2023 680th AbhilashaTandon 568 89 11ms 24 Sep 2023 680th eddvrs 568 89 10ms 20 Dec 2023 684th emgordon154 568 160 210ms 5 Mar 2025 685th a6166231 🇨🇳 566 101 11ms 5 Jun 2025 686th MeWhenI 🇻🇦 566 149 42ms 6 Jun 2023 687th KatieLG 🇬🇧 565 109 178ms 22 Jan 2023 688th KatieLG 🇬🇧 565 198 373ms 22 Jan 2023 689th Shanethegamer 🇺🇸 564 150 96ms 4 Oct 2024 690th rak1507 🇬🇧 563 49 2ms 2 Mar 2022 691st jfallon1997 562 90 31ms 7 Sep 2022 691st xDragoxboi 562 90 12ms 30 Jun 2025 691st jacekwladzinski 562 90 11ms 5 Oct 2025 694th KatieLG 🇬🇧 562 142 472ms 13 Nov 2022 695th janbehrens 🇩🇪 561 99 123ms 2 Jul 2023 696th DaCuteRaccoon 561 102 17ms 30 Nov 2022 696th dylanarmstrong 561 102 11ms 21 Jan 2024 696th acollett89 561 102 29ms 18 Jul 2025 699th heanyang1 560 200 260ms 29 May 2025 700th NickTheEASDude 🇺🇸 559 121 16ms 1 May 2024 701st madex 🇩🇪 558 122 3ms 29 Mar 2022 702nd HumanoidCPU 557 80 35ms 6 Nov 2024 703rd h3ra993huskp 🇯🇵 557 163 494ms 18 days ago 704th kkoenig 557 201 274ms 7 Sep 2025 705th SirFireball3521 556 79 1,093ms 15 Mar 2023 706th commandblockguy 🇺🇸 556 91 102ms 21 Sep 2022 706th MaxElf999 556 91 3,023ms 28 Sep 2022 706th fkantelberg 556 91 54ms 7 Aug 2023 706th sultan 556 91 29ms 5 Mar 2024 710th HumanoidCPU 556 119 133ms 7 Nov 2024 711th Lv0Sys 🇵🇱 555 103 32ms 12 days ago 712th msbranicky 554 87 473ms 17 Jan 2024 713th HumanoidCPU 554 202 268ms 26 Aug 2024 714th albanian-laundromat 554 260 1,952ms 23 Oct 2025 715th varhammer 🇷🇺 553 153 210ms 13 Dec 2023 716th CatsAreFluffy 553 157 78ms 10 Jan 2023 717th Ailko 🇧🇪 550 92 10ms 6 May 2022 717th ComputerKWasTaken 🇺🇸 550 92 11ms 23 Oct 2024 719th TheLazySquid 550 104 178ms 26 Sep 2024 720th commandblockguy 🇺🇸 547 88 594ms 1 Sep 2025 First Prev 641–720 of 1,526 Next Last