The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
United States 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 401st SirBogman 🇺🇸 663 200 6ms 25 Feb 2020 402nd blaztoma 🇱🇹 662 83 50ms 13 Nov 2025 403rd GrayJoKing 🇦🇺 660 122 133ms 4 Aug 2024 404th snoozingnewt 🇨🇦 660 196 108ms 12 days ago 405th Yax42 🇫🇷 659 143 440ms 9 Aug 2025 406th MeWhenI 🇻🇦 658 235 2ms 11 Oct 2023 407th janbehrens 🇩🇪 657 116 354ms 16 Jul 2022 407th blaztoma 🇱🇹 657 116 306ms 14 Oct 2025 409th dokutan 655 123 131ms 13 Sep 2025 410th SirBogman 🇺🇸 655 144 391ms 24 Jan 2025 411th dokutan 655 169 167ms 11 Sep 2025 412th DialFrost 🇸🇬 653 145 5ms 15 Nov 2023 413th MeWhenI 🇻🇦 653 253 41ms 16 May 2023 414th MeWhenI 🇻🇦 649 124 136ms 3 Aug 2024 415th tatzyr 🇯🇵 647 85 39ms 23 Dec 2024 416th Shanethegamer 🇺🇸 647 94 104ms 5 Oct 2024 417th anter69 🇭🇺 647 120 1,493ms 17 Sep 2024 418th Openstreetmapler 646 120 17ms 4 Oct 2025 419th sisyphus-ppcg 🇦🇺 645 78 3ms 5 Jul 2022 420th MeWhenI 🇻🇦 645 142 2ms 5 Jul 2024 421st sech1p 🇵🇱 643 143 12ms 2 Jul 2021 422nd GrayJoKing 🇦🇺 642 134 120ms 15 Feb 2024 423rd dokutan 635 126 1,049ms 29 Aug 2025 424th blaztoma 🇱🇹 634 145 10ms 25 Aug 2025 425th MeWhenI 🇻🇦 634 175 5ms 2 Oct 2022 426th edsrzf 🇳🇿 632 136 89ms 28 Jun 2025 427th iczelia 🇩🇪 632 145 2ms 19 Oct 2025 428th janbehrens 🇩🇪 632 155 8ms 16 Jul 2022 429th MeWhenI 🇻🇦 632 238 3ms 10 Sep 2022 430th SirBogman 🇺🇸 631 211 15ms 6 Oct 2025 431st btjones0 631 241 197ms 27 Dec 2020 432nd MeWhenI 🇻🇦 630 172 68ms 7 Jul 2022 433rd DialFrost 🇸🇬 628 146 2ms 16 Feb 2024 434th emgordon154 627 113 494ms 21 Apr 2025 435th argusdusty 🇺🇸 625 124 17ms 2 Jan 2021 435th NewDefectus 🇮🇱 625 124 18ms 4 Dec 2021 435th stefangimmillaro 625 124 15ms 8 Jul 2022 435th scpchicken 🇵🇼 625 124 15ms 2 Mar 2023 435th prplz 🇦🇺 625 124 20ms 28 May 2023 435th lynn 625 124 15ms 11 Oct 2023 435th CaedenHarper 🇨🇦 625 124 14ms 25 Jul 2024 435th ryyyn 🇺🇸 625 124 15ms 31 Jul 2025 443rd dee2716 625 147 11ms 16 Apr 2021 444th acotis 624 244 257ms 24 May 2025 445th UnderKoen 🇳🇱 623 219 3ms 19 Aug 2024 446th msbranicky 623 248 2ms 12 Oct 2023 447th MeWhenI 🇻🇦 620 125 16ms 8 Jul 2022 447th GrayJoKing 🇦🇺 620 125 15ms 16 Jan 2024 447th tperr 620 125 14ms 29 Sep 2024 447th alemelis 620 125 15ms 2 Oct 2024 451st typeswitch-dev 🇵🇹 620 225 6ms 31 Jul 2023 452nd BlankSpruce 619 148 2ms 20 Aug 2024 453rd emgordon154 616 137 11ms 15 Sep 2025 454th Anonymousellama21 615 126 19ms 15 Jun 2022 454th inventshah 615 126 20ms 7 Jul 2022 454th Irratix 🇳🇱 615 126 16ms 21 Sep 2022 454th davitf 615 126 17ms 24 Jun 2023 454th 051 🇸🇬 615 126 18ms 10 Nov 2023 454th Artemis21 🇬🇧 615 126 16ms 10 Jan 2025 460th MeWhenI 🇻🇦 614 148 2ms 31 Aug 2021 461st SirBogman 🇺🇸 613 195 5ms 15 Feb 2020 462nd SirBogman 🇺🇸 613 207 747ms 21 May 2020 463rd primo-ppcg 🇹🇭 611 102 37ms 4 Feb 2023 464th SirBogman 🇺🇸 610 183 360ms 17 Oct 2020 465th DialFrost 🇸🇬 609 116 16ms 26 Feb 2025 466th NewDefectus 🇮🇱 607 83 3ms 4 Dec 2021 466th scpchicken 🇵🇼 607 83 3ms 2 Mar 2023 468th dokutan 605 177 4,147ms 21 Mar 2025 469th b97tsk 605 230 337ms 23 Apr 2020 470th jared-hughes 604 91 49ms 11 Sep 2022 471st MeWhenI 🇻🇦 604 241 37ms 6 Jun 2023 472nd SirBogman 🇺🇸 604 391 12ms 23 Nov 2022 473rd 5cw 🇺🇸 601 129 15ms 25 Mar 2024 473rd bknower 601 129 14ms 29 Jun 2025 473rd blaztoma 🇱🇹 601 129 14ms 14 Oct 2025 476th tomtheisen 🇺🇸 601 157 425ms 11 Feb 2025 477th albanian-laundromat 600 251 3ms 29 Jun 2025 478th ndren 599 153 2ms 8 Oct 2025 479th CaedenHarper 🇨🇦 597 92 51ms 7 Sep 2025 480th c0d3-4-F00d 🇩🇪 595 154 2ms 4 Jul 2021 First Prev 401–480 of 1,385 Next Last