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 481st blaztoma 🇱🇹 694 36 74ms 27 days ago 482nd AdrienHache 🇫🇷 694 115 424ms 13 Aug 2025 483rd NewDefectus 🇮🇱 693 73 57ms 29 Apr 2022 483rd AlephSquirrel 693 73 11ms 28 Jan 2023 483rd fourth-bit 693 73 11ms 11 Jul 2023 483rd neihousaigaai 693 73 35ms 22 Oct 2024 483rd csharpython 693 73 107ms 18 Jul 2025 488th SirBogman 🇺🇸 693 108 117ms 23 Nov 2022 489th scpchicken 🇵🇼 692 55 54ms 18 Jan 2023 490th edsrzf 🇳🇿 691 130 52ms 27 Dec 2024 491st akshatj27 🇦🇶 689 83 23ms 2 Mar 2022 491st AlephSquirrel 689 83 13ms 15 Feb 2023 493rd MeWhenI 🇻🇦 689 132 144ms 22 Jul 2024 494th emgordon154 688 230 1,700ms 9 Jun 2025 495th anter69 🇭🇺 686 65 91ms 12 Feb 2024 496th minhtrancccp 683 74 11ms 11 Jan 2024 496th albanian-laundromat 683 74 3,659ms 29 Apr 2025 498th janbehrens 🇩🇪 683 127 76ms 22 Dec 2023 499th Shanethegamer 🇺🇸 682 72 408ms 1 Mar 2022 500th DialFrost 🇸🇬 682 112 1,272ms 10 May 2025 501st DialFrost 🇸🇬 682 124 57ms 6 Dec 2024 502nd neel11235813 681 48 34ms 18 Feb 2023 503rd janbehrens 🇩🇪 681 84 22ms 1 Mar 2022 503rd tayloia 🇬🇧 681 84 20ms 9 May 2023 503rd lukegustafson 🇺🇸 681 84 94ms 15 Sep 2024 506th stefangimmillaro 681 110 41ms 4 Nov 2022 507th MeWhenI 🇻🇦 680 82 78ms 11 Oct 2023 508th stefangimmillaro 679 108 4,070ms 10 Nov 2024 509th stefangimmillaro 679 134 131ms 26 Oct 2023 509th mousetail 🇳🇱 679 134 153ms 26 Sep 2025 511th error256 678 92 1,213ms 13 Aug 2025 512th DialFrost 🇸🇬 677 91 108ms 2 May 2025 513th DaCuteRaccoon 677 125 58ms 1 Dec 2022 513th CaedenHarper 🇨🇦 677 125 57ms 27 Jan 2025 515th Yax42 🇫🇷 676 118 483ms 27 Apr 2025 516th Irratix 🇳🇱 675 66 77ms 9 Mar 2022 517th suwat513 674 75 10ms 20 Sep 2022 517th ahmetdemirag 🇨🇾 674 75 10ms 6 Mar 2025 519th KrausRaus 🇺🇸 673 85 26ms 2 Mar 2022 520th c0d3-4-F00d 🇩🇪 672 126 57ms 5 Mar 2022 520th snoozingnewt 🇨🇦 672 126 57ms 1 Sep 2024 522nd MeWhenI 🇻🇦 670 92 110ms 24 Feb 2023 523rd Shanethegamer 🇺🇸 669 83 1,170ms 7 Jun 2022 524th tuffnatty 🇩🇪 668 99 145ms 19 Jul 2023 525th c0d3-4-F00d 🇩🇪 668 102 8ms 5 Mar 2022 525th janbehrens 🇩🇪 668 102 8ms 16 May 2023 525th CaedenHarper 🇨🇦 668 102 9ms 27 Jan 2025 525th iczelia 🇩🇪 668 102 8ms 17 Oct 2025 529th tailorspy 667 130 76ms 22 Aug 2024 530th CLOStrophobic 🇮🇹 666 127 2,710ms 4 Feb 2025 531st dillon-duncando 665 70 102ms 10 Mar 2024 531st snoozingnewt 🇨🇦 665 70 178ms 19 Oct 2025 533rd Indivicivet 665 76 11ms 9 May 2022 533rd nstearns96 🇬🇧 665 76 31ms 9 Jan 2023 533rd TaserTheFox 🇺🇸 665 76 11ms 16 Feb 2023 533rd cros107 🇦🇺 665 76 11ms 19 Aug 2023 533rd cingulataluke 665 76 48ms 29 Aug 2023 533rd stertooy 🇧🇪 665 76 10ms 15 Jun 2024 533rd hiichbindermax 665 76 11ms 22 Jun 2024 533rd wh3n3v3r 🇨🇿 665 76 24ms 12 Nov 2024 533rd Flekay 🇩🇪 665 76 13ms 10 Jul 2025 533rd qpwoeirut 665 76 11ms 19 Sep 2025 543rd BambooleanLogic 🇸🇪 665 86 43ms 15 Nov 2022 543rd Maznek 665 86 21ms 11 Dec 2023 545th Lydxn 🇨🇦 663 137 459ms 5 Mar 2022 546th edsrzf 🇳🇿 661 101 91ms 1 Sep 2025 547th m-tkach 🇺🇦 661 103 12ms 30 Mar 2022 548th Shanethegamer 🇺🇸 661 218 446ms 28 Apr 2025 549th AlephSquirrel 660 73 405ms 16 Jan 2024 550th MeWhenI 🇻🇦 659 77 136ms 3 Aug 2024 551st MeWhenI 🇻🇦 658 103 99ms 14 Oct 2022 552nd Anonymousellama21 657 77 12ms 15 Jun 2022 552nd betaveros 657 77 11ms 1 Jan 2023 552nd quimey 657 77 10ms 15 Mar 2023 552nd thienudomsrirungruang 657 77 30ms 7 May 2024 556th albanian-laundromat 655 171 619ms 16 days ago 557th KatieLG 🇬🇧 654 74 915ms 29 Aug 2024 557th emgordon154 654 74 1,044ms 13 Nov 2024 559th primo-ppcg 🇹🇭 654 139 397ms 4 Mar 2022 560th MeWhenI 🇻🇦 653 85 1,051ms 28 May 2023 First Prev 481–560 of 1,527 Next Last