The Calendar hole will go live in approximately 8 days. Why not try and solve it ahead of time?
Hexdump in all languages in bytes. 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 Bytes Time Submitted 321st AdrienHache 🇫🇷 791 128 51ms 18 days ago 322nd mtirado1 791 204 2ms 14 Aug 2022 323rd MeWhenI 🇻🇦 790 106 3ms 16 May 2023 324th jared-hughes 790 170 412ms 18 Jul 2022 325th emgordon154 787 122 1,180ms 4 Dec 2024 326th mathisfun271 785 170 10ms 5 Feb 2024 327th janbehrens 🇩🇪 785 171 182ms 11 May 2022 328th Shanethegamer 🇺🇸 785 226 74ms 27 Jan 2025 329th IanUtley 783 236 16ms 19 Aug 2023 330th MeWhenI 🇻🇦 783 245 268ms 9 Feb 2023 330th DialFrost 🇸🇬 783 245 278ms 6 Sep 2024 332nd inventshah 782 192 3ms 9 Feb 2023 333rd Andrey-Plotnikov 782 217 9ms 9 Nov 2024 334th edsrzf 🇳🇿 781 123 1,099ms 11 Jul 2025 335th inventshah 780 171 9ms 20 Jan 2023 335th plcc0 780 171 9ms 9 Oct 2025 337th ScottHamper 780 196 358ms 5 May 2022 338th edsrzf 🇳🇿 779 371 1,720ms 13 Sep 2025 339th andersk 🇺🇸 778 256 217ms 30 Oct 2022 339th amillh 778 256 211ms 6 Nov 2022 341st 4hg 🇺🇸 777 117 34ms 26 Jul 2023 342nd DialFrost 🇸🇬 776 183 4,054ms 28 Oct 2024 343rd Shanethegamer 🇺🇸 776 192 502ms 31 Jan 2025 344th Shanethegamer 🇺🇸 775 176 742ms 16 Mar 2025 345th BambooleanLogic 🇸🇪 775 219 11ms 13 Oct 2022 346th emplv 🇱🇻 774 162 5ms 26 May 2022 347th albanian-laundromat 773 450 467ms 27 Oct 2025 348th helbling 🇨🇭 771 220 9ms 29 Jul 2024 349th edsrzf 🇳🇿 770 260 6ms 5 Mar 2025 350th MeWhenI 🇻🇦 770 290 45ms 29 Apr 2025 351st inventshah 768 214 77ms 16 Nov 2022 352nd coreynash 768 221 9ms 18 Oct 2023 353rd blaztoma 🇱🇹 764 123 51ms 24 Oct 2025 354th Shanethegamer 🇺🇸 763 186 4,918ms 16 Feb 2025 355th prestosilver 🇺🇸 762 197 3ms 10 days ago 356th janbehrens 🇩🇪 761 223 10ms 11 May 2023 357th janbehrens 🇩🇪 761 271 496ms 11 May 2023 358th thisishowmymindworks 🇳🇴 758 224 9ms 7 Jun 2023 359th ovs-code 🇩🇪 757 192 3ms 10 Feb 2023 360th DialFrost 🇸🇬 757 198 135ms 4 Aug 2024 361st roavin 757 202 373ms 13 Jun 2022 361st namelessiw 757 202 415ms 1 Aug 2025 363rd emgordon154 757 255 109ms 6 Nov 2025 364th sultan 756 273 632ms 24 Feb 2024 365th ahmetdemirag 🇨🇾 754 177 10ms 21 Oct 2024 365th Lv0Sys 🇵🇱 754 177 10ms 16 days ago 367th primo-ppcg 🇹🇭 754 178 96ms 2 May 2022 368th Lv0Sys 🇵🇱 751 125 47ms 15 days ago 369th emgordon154 750 202 8ms 7 Apr 2025 370th Irratix 🇳🇱 749 178 11ms 4 May 2022 370th TaserTheFox 🇺🇸 749 178 9ms 1 May 2023 372nd GolfingSuccess 🇬🇷 749 464 485ms 8 Feb 2025 373rd zakariamouhid 748 227 9ms 24 Feb 2023 374th sean-niemann 🇺🇸 748 247 43ms 28 Apr 2023 375th jared-hughes 747 201 3ms 19 Jul 2022 376th MeWhenI 🇻🇦 747 226 2ms 13 Oct 2023 377th DialFrost 🇸🇬 745 129 1,231ms 4 Dec 2024 378th Shanethegamer 🇺🇸 745 179 9ms 16 Mar 2025 379th BlankSpruce 744 221 75ms 29 Aug 2024 380th a6166231 🇨🇳 744 228 8ms 22 May 2025 381st albanian-laundromat 743 164 820ms 3 Nov 2025 382nd stefangimmillaro 743 191 4,227ms 12 Nov 2024 383rd OllieBoyne 🇬🇧 741 180 9ms 31 Aug 2022 383rd jared-hughes 741 180 10ms 6 Jan 2023 383rd b10011 🇫🇮 741 180 10ms 15 Jan 2023 383rd scpchicken 🇵🇼 741 180 9ms 22 Nov 2023 387th olleicua 🇺🇸 740 127 50ms 15 Feb 2024 388th MeWhenI 🇻🇦 739 391 1,680ms 7 Nov 2025 389th antimon2 🇯🇵 738 185 701ms 10 Sep 2022 390th quimey 737 181 10ms 23 Mar 2023 391st Yewzir 🇧🇪 737 229 4ms 8 Jun 2024 392nd MeWhenI 🇻🇦 736 282 98ms 15 Oct 2022 393rd MeWhenI 🇻🇦 735 208 356ms 8 Dec 2022 394th MeWhenI 🇻🇦 734 163 487ms 24 May 2024 395th DialFrost 🇸🇬 732 209 445ms 10 Jan 2025 396th jared-hughes 731 225 72ms 20 Jul 2022 397th JDiLenarda 🇫🇷 730 252 1,504ms 3 Jul 2025 398th guilhem-roy 🇫🇷 729 183 10ms 5 May 2022 398th Koshu 729 183 9ms 7 Dec 2023 400th stefangimmillaro 729 273 191ms 4 Jun 2025 First Prev 321–400 of 822 Next Last