The Calendar hole will go live in approximately 13 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 igmcdowell 648 126 11ms 14 Nov 2021 482nd Shanethegamer 🇺🇸 647 117 26ms 9 Jul 2022 483rd davecame 645 112 13ms 31 Jul 2023 484th emgordon154 645 166 8ms 4 Sep 2025 485th adoxography 644 89 51ms 28 Sep 2021 485th jared-hughes 644 89 52ms 12 Sep 2022 485th aaronze 🇦🇺 644 89 52ms 17 Sep 2023 488th frosster 644 144 3ms 19 Mar 2025 489th btjones0 644 210 235ms 8 Dec 2021 490th scpchicken 🇵🇼 641 211 216ms 6 Apr 2022 491st edsrzf 🇳🇿 640 189 368ms 27 Sep 2024 492nd jared-hughes 639 113 14ms 22 Apr 2022 492nd Artemis21 🇬🇧 639 113 11ms 10 Jan 2025 492nd blaztoma 🇱🇹 639 113 11ms 4 days ago 495th IanUtley 639 181 14ms 14 May 2024 496th snoozingnewt 🇨🇦 637 201 7ms 8 days ago 497th Kanawanagasaki 635 140 437ms 15 Sep 2022 498th edsrzf 🇳🇿 635 235 52ms 15 Mar 2025 499th MeWhenI 🇻🇦 634 93 3ms 16 Apr 2023 500th eMGeeneer 634 171 666ms 26 Jun 2024 501st rgthree 633 129 11ms 6 Sep 2023 502nd eMGeeneer 633 161 528ms 27 Jun 2024 503rd the-zammers 632 234 157ms 15 Oct 2023 504th CaedenHarper 🇨🇦 627 207 3ms 7 Nov 2025 505th dokutan 627 246 2,205ms 5 Nov 2025 506th KatieLG 🇬🇧 626 142 408ms 18 Oct 2022 507th KatieLG 🇬🇧 624 208 3ms 8 Nov 2025 508th rucin93 🇵🇱 623 110 149ms 22 Jan 2025 509th bricknellj 623 116 12ms 27 Nov 2022 509th quimey 623 116 11ms 19 Jul 2023 511th Natanaelel 🇸🇪 623 131 11ms 27 Aug 2021 511th GeorgeStechman 🇬🇧 623 131 12ms 4 Dec 2023 511th HumanoidCPU 623 131 12ms 25 days ago 514th snoozingnewt 🇨🇦 621 141 75ms 8 days ago 515th c0d3-4-F00d 🇩🇪 619 132 11ms 22 Sep 2021 515th eranws 619 132 12ms 23 Dec 2024 517th MeWhenI 🇻🇦 618 187 16ms 17 Nov 2021 518th snoozingnewt 🇨🇦 617 93 50ms 8 days ago 519th bizy-coder 617 117 10ms 8 days ago 520th JRaspass 🇬🇧 615 96 3ms 26 Aug 2021 521st zakariamouhid 614 133 11ms 22 Apr 2023 522nd SirBogman 🇺🇸 613 108 699ms 29 Jan 2024 522nd Yewzir 🇧🇪 613 108 479ms 15 Feb 2024 524th janbehrens 🇩🇪 613 131 7ms 10 Jul 2023 525th dokutan 612 400 982ms 15 Jan 2025 526th dcgjb 610 102 366ms 11 Jun 2024 527th Ralac07 🇦🇺 609 134 12ms 24 days ago 528th strout 608 243 176ms 15 Aug 2022 529th slimer37 607 119 11ms 12 days ago 530th CaedenHarper 🇨🇦 607 182 91ms 7 Nov 2025 531st mckymsh 605 135 11ms 4 Feb 2024 532nd Natanaelel 🇸🇪 604 95 53ms 15 Feb 2023 532nd rvs314 604 95 52ms 24 Sep 2024 534th Irratix 🇳🇱 602 120 13ms 8 Dec 2022 534th xiaoyiming123 602 120 15ms 24 Jul 2025 536th MeWhenI 🇻🇦 601 126 26ms 18 Nov 2023 537th snoozingnewt 🇨🇦 601 178 8ms 8 days ago 538th Yewzir 🇧🇪 601 216 3ms 18 Jan 2024 539th msbranicky 598 151 4,861ms 8 Jan 2025 540th GolfingSuccess 🇬🇷 597 121 22ms 23 Aug 2021 540th neihousaigaai 597 121 12ms 22 Dec 2021 540th rsgray 597 121 10ms 12 Jan 2024 540th fuzzylojik-golf 🇺🇸 597 121 17ms 25 May 2025 544th Shanethegamer 🇺🇸 596 99 3ms 19 Dec 2021 545th GolfingSuccess 🇬🇷 596 111 478ms 2 Mar 2024 546th MattShaile 596 137 13ms 26 Apr 2022 546th Mabeloid 🇳🇴 596 137 12ms 13 Oct 2024 548th CaedenHarper 🇨🇦 595 153 134ms 25 Aug 2025 549th CaedenHarper 🇨🇦 595 182 789ms 16 Oct 2025 550th OllieBoyne 🇬🇧 592 122 11ms 24 Aug 2021 550th TobyBoyne 🇬🇧 592 122 13ms 24 Aug 2021 550th shelerr 592 122 12ms 9 Jul 2022 550th galloj 🇨🇿 592 122 13ms 20 Aug 2022 554th djeedjay 🇳🇱 592 137 2ms 5 Sep 2021 555th Yewzir 🇧🇪 592 138 11ms 17 Apr 2023 555th acollett89 592 138 11ms 5 Aug 2025 557th janbehrens 🇩🇪 592 171 584ms 24 Mar 2022 558th MWI-polygolf 591 158 5ms 7 Dec 2023 559th emgordon154 590 199 3ms 4 Sep 2025 560th MeWhenI 🇻🇦 589 146 129ms 2 Nov 2023 First Prev 481–560 of 1,268 Next Last