The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
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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 Shanethegamer 🇺🇸 647 117 26ms 9 Jul 2022 482nd adoxography 645 89 51ms 28 Sep 2021 482nd jared-hughes 645 89 52ms 12 Sep 2022 482nd aaronze 🇦🇺 645 89 52ms 17 Sep 2023 485th davecame 645 112 13ms 31 Jul 2023 486th emgordon154 645 166 8ms 4 Sep 2025 487th btjones0 644 210 235ms 8 Dec 2021 488th frosster 643 144 5ms 19 Mar 2025 489th scpchicken 🇵🇼 641 211 216ms 6 Apr 2022 490th edsrzf 🇳🇿 640 189 368ms 27 Sep 2024 491st jared-hughes 639 113 14ms 22 Apr 2022 491st Artemis21 🇬🇧 639 113 11ms 10 Jan 2025 491st blaztoma 🇱🇹 639 113 11ms 8 days ago 494th IanUtley 639 181 14ms 14 May 2024 495th snoozingnewt 🇨🇦 637 201 7ms 13 days ago 496th Kanawanagasaki 635 140 437ms 15 Sep 2022 497th edsrzf 🇳🇿 635 235 52ms 15 Mar 2025 498th MeWhenI 🇻🇦 634 93 3ms 16 Apr 2023 499th eMGeeneer 634 171 666ms 26 Jun 2024 500th rgthree 633 129 11ms 6 Sep 2023 501st eMGeeneer 633 161 528ms 27 Jun 2024 502nd the-zammers 632 234 157ms 15 Oct 2023 503rd CaedenHarper 🇨🇦 627 207 3ms 7 Nov 2025 504th dokutan 627 246 2,205ms 5 Nov 2025 505th KatieLG 🇬🇧 626 142 408ms 18 Oct 2022 506th KatieLG 🇬🇧 624 208 3ms 8 Nov 2025 507th rucin93 🇵🇱 623 110 149ms 22 Jan 2025 508th bricknellj 623 116 12ms 27 Nov 2022 508th quimey 623 116 11ms 19 Jul 2023 510th Natanaelel 🇸🇪 623 131 11ms 27 Aug 2021 510th GeorgeStechman 🇬🇧 623 131 12ms 4 Dec 2023 510th HumanoidCPU 623 131 12ms 23 Nov 2025 513th snoozingnewt 🇨🇦 621 141 75ms 13 days ago 514th c0d3-4-F00d 🇩🇪 619 132 11ms 22 Sep 2021 514th eranws 619 132 12ms 23 Dec 2024 516th MeWhenI 🇻🇦 618 187 16ms 17 Nov 2021 517th snoozingnewt 🇨🇦 617 93 50ms 13 days ago 518th bizy-coder 617 117 10ms 12 days ago 519th JRaspass 🇬🇧 615 96 3ms 26 Aug 2021 520th zakariamouhid 614 133 11ms 22 Apr 2023 521st SirBogman 🇺🇸 613 108 699ms 29 Jan 2024 521st Yewzir 🇧🇪 613 108 479ms 15 Feb 2024 523rd janbehrens 🇩🇪 613 131 7ms 10 Jul 2023 524th dokutan 612 400 982ms 15 Jan 2025 525th dcgjb 610 102 366ms 11 Jun 2024 526th Ralac07 🇦🇺 609 134 12ms 24 Nov 2025 527th strout 608 243 176ms 15 Aug 2022 528th slimer37 607 119 11ms 17 days ago 529th CaedenHarper 🇨🇦 607 182 91ms 7 Nov 2025 530th mckymsh 605 135 11ms 4 Feb 2024 531st Natanaelel 🇸🇪 604 95 53ms 15 Feb 2023 531st rvs314 604 95 52ms 24 Sep 2024 533rd Irratix 🇳🇱 602 120 13ms 8 Dec 2022 533rd xiaoyiming123 602 120 15ms 24 Jul 2025 535th MeWhenI 🇻🇦 601 126 26ms 18 Nov 2023 536th snoozingnewt 🇨🇦 601 178 8ms 13 days ago 537th Yewzir 🇧🇪 601 216 3ms 18 Jan 2024 538th msbranicky 598 151 4,861ms 8 Jan 2025 539th GolfingSuccess 🇬🇷 597 121 22ms 23 Aug 2021 539th neihousaigaai 597 121 12ms 22 Dec 2021 539th rsgray 597 121 10ms 12 Jan 2024 539th fuzzylojik-golf 🇺🇸 597 121 17ms 25 May 2025 543rd Shanethegamer 🇺🇸 596 99 3ms 19 Dec 2021 544th GolfingSuccess 🇬🇷 596 111 478ms 2 Mar 2024 545th MattShaile 596 137 13ms 26 Apr 2022 545th Mabeloid 🇳🇴 596 137 12ms 13 Oct 2024 547th CaedenHarper 🇨🇦 595 153 134ms 25 Aug 2025 548th CaedenHarper 🇨🇦 595 182 789ms 16 Oct 2025 549th OllieBoyne 🇬🇧 592 122 11ms 24 Aug 2021 549th TobyBoyne 🇬🇧 592 122 13ms 24 Aug 2021 549th shelerr 592 122 12ms 9 Jul 2022 549th galloj 🇨🇿 592 122 13ms 20 Aug 2022 553rd djeedjay 🇳🇱 592 137 2ms 5 Sep 2021 554th Yewzir 🇧🇪 592 138 11ms 17 Apr 2023 554th acollett89 592 138 11ms 5 Aug 2025 556th janbehrens 🇩🇪 592 171 584ms 24 Mar 2022 557th MWI-polygolf 591 158 5ms 7 Dec 2023 558th emgordon154 590 199 3ms 4 Sep 2025 559th MeWhenI 🇻🇦 589 146 129ms 2 Nov 2023 560th edsrzf 🇳🇿 588 182 8ms 15 Sep 2025 First Prev 481–560 of 1,268 Next Last