The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Hexdump 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 321st weeble 691 232 9ms 1 Jul 2025 322nd The3gs 691 283 163ms 26 Jan 2025 323rd BlankSpruce 689 214 2ms 29 Aug 2024 324th sean-niemann 🇺🇸 688 194 2ms 21 Apr 2023 325th MeWhenI 🇻🇦 688 233 7ms 16 Aug 2024 326th hellopatrick 688 333 35ms 31 Dec 2022 327th annaproxy 687 262 18ms 1 Sep 2023 328th KatieLG 🇬🇧 686 182 9ms 5 Oct 2025 329th sean-niemann 🇺🇸 686 215 5ms 16 Oct 2024 330th nullie 686 285 207ms 19 Mar 2025 331st revlayle 🇺🇸 685 219 354ms 20 Jun 2022 332nd duckyluuk 🇳🇱 685 279 15ms 8 Nov 2025 333rd elgan65536 684 286 205ms 28 Oct 2023 334th yzhs 🇩🇪 683 131 10ms 31 May 2022 335th primo-ppcg 🇹🇭 683 145 106ms 11 Oct 2023 335th ovs-code 🇩🇪 683 145 72ms 12 Sep 2024 337th tobeannouncd 682 274 151ms 21 May 2024 338th postie77 681 220 357ms 14 Dec 2022 339th Alex-x90 🇺🇸 679 217 2ms 31 Mar 2024 340th tatzyr 🇯🇵 677 95 43ms 12 Feb 2025 341st MeWhenI 🇻🇦 674 198 2ms 14 Nov 2022 342nd djeedjay 🇳🇱 673 219 3ms 21 Sep 2022 343rd MiffOttah 672 223 380ms 28 Nov 2024 344th msbranicky 672 280 279ms 31 Aug 2023 345th Lydxn 🇨🇦 671 186 9ms 28 May 2022 346th sisyphus-ppcg 🇦🇺 670 96 52ms 1 Dec 2022 346th nwellnhof 🇩🇪 670 96 40ms 26 Jun 2023 348th Yewzir 🇧🇪 670 220 2ms 29 Dec 2023 349th RockOfStone 669 198 2ms 25 Jun 2024 350th edsrzf 🇳🇿 665 149 67ms 12 Jul 2025 351st jupj 🇫🇮 665 283 271ms 12 Aug 2022 352nd emgordon154 665 294 3ms 10 Jun 2025 353rd targrik 664 183 7ms 20 May 2025 354th rollershutter 664 196 200ms 23 Oct 2022 355th typeswitch-dev 🇵🇹 664 312 3ms 23 Jul 2023 356th AlephSquirrel 663 211 9ms 21 Oct 2024 357th primo-ppcg 🇹🇭 662 77 45ms 5 Feb 2023 358th DialFrost 🇸🇬 662 200 2ms 31 Oct 2024 359th edsrzf 🇳🇿 662 269 61ms 6 Nov 2025 360th CatsAreFluffy 661 223 3ms 25 Jan 2023 361st Mabeloid 🇳🇴 659 201 2ms 21 Sep 2024 362nd Flekay 🇩🇪 658 136 12ms 19 Jun 2025 363rd MeWhenI 🇻🇦 657 106 3ms 16 May 2023 364th DialFrost 🇸🇬 655 225 3ms 3 Jul 2024 364th Lv0Sys 🇵🇱 655 225 3ms 11 days ago 366th h3ra993huskp 🇯🇵 655 310 458ms 18 days ago 367th DialFrost 🇸🇬 653 129 283ms 10 Oct 2024 368th bizy-coder 653 137 9ms 21 Nov 2023 368th ovs-code 🇩🇪 653 137 10ms 21 Jan 2025 370th NickTheEASDude 🇺🇸 652 203 2ms 7 Jan 2025 371st emgordon154 651 222 481ms 30 May 2025 372nd kkoenig 651 289 276ms 1 Jan 2024 373rd Natanaelel 🇸🇪 650 99 41ms 1 May 2022 373rd stefangimmillaro 650 99 40ms 26 Dec 2024 375th KrausRaus 🇺🇸 650 192 9ms 8 May 2022 375th madeforlosers 650 192 10ms 1 Nov 2023 377th xnor-gate 649 138 10ms 9 May 2022 377th StefanHabel 🇨🇦 649 138 9ms 14 Nov 2022 377th sisyphus-ppcg 🇦🇺 649 138 9ms 20 Jan 2023 377th lynn 649 138 9ms 15 Feb 2023 377th zacjl 649 138 10ms 27 Apr 2025 377th blaztoma 🇱🇹 649 138 10ms 13 Nov 2025 383rd mtirado1 649 204 2ms 14 Aug 2022 384th bizy-coder 648 128 417ms 21 Jan 2024 384th DialFrost 🇸🇬 648 128 446ms 22 Jan 2024 384th ovs-code 🇩🇪 648 128 456ms 21 Jan 2025 387th dokutan 648 167 10ms 1 Jul 2024 388th MeWhenI 🇻🇦 648 223 528ms 17 Apr 2024 389th MeWhenI 🇻🇦 648 246 381ms 30 Jan 2023 390th ian-h-chamberlain 🇺🇸 648 302 200ms 22 Jun 2022 391st ericlangedijk 🇸🇮 646 232 357ms 5 May 2022 391st stefangimmillaro 646 232 437ms 15 Jun 2025 393rd Yewzir 🇧🇪 645 249 61ms 29 Dec 2023 394th luuumine 🇫🇷 644 139 11ms 22 Oct 2025 395th ovs-code 🇩🇪 644 166 124ms 18 Jun 2024 396th 4hg 🇺🇸 643 100 43ms 25 Jan 2023 397th KatieLG 🇬🇧 643 129 386ms 6 Oct 2025 398th Natanaelel 🇸🇪 642 291 145ms 28 Jul 2025 399th osmith93 640 251 95ms 10 Jul 2022 400th MeWhenI 🇻🇦 639 215 41ms 4 Sep 2024 First Prev 321–400 of 817 Next Last