The Calendar hole will go live in approximately 4 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 481st Maashau 569 259 2ms 29 Nov 2025 482nd JunkIce 567 158 17ms 19 Jan 2025 483rd helbling 🇨🇭 567 220 9ms 29 Jul 2024 484th JGDoerrer 567 345 190ms 12 Aug 2022 485th coreynash 565 221 9ms 18 Oct 2023 485th Protothor 565 221 10ms 3 hours ago 487th rifatx 564 266 445ms 26 Jul 2024 488th GolfingSuccess 🇬🇷 560 91 73ms 26 Jul 2022 489th DialFrost 🇸🇬 560 115 41ms 4 Dec 2024 490th janbehrens 🇩🇪 560 223 10ms 11 May 2023 491st Re-Adventures 🇮🇳 559 350 182ms 19 Jan 2025 492nd CaedenHarper 🇨🇦 559 363 559ms 7 Oct 2025 493rd dokutan 557 149 383ms 4 Jul 2024 494th msbranicky 556 296 5ms 13 Oct 2023 495th SirBogman 🇺🇸 554 92 50ms 10 Sep 2023 496th MeWhenI 🇻🇦 552 278 18ms 10 Jan 2025 497th edsrzf 🇳🇿 551 208 78ms 28 Jun 2025 498th jmerle 🇳🇱 549 163 10ms 6 Jul 2023 499th AlephSquirrel 548 93 49ms 31 Dec 2022 500th MostParsingVex 548 280 30ms 25 Sep 2024 501st jared-hughes 548 518 1,676ms 16 Sep 2025 502nd a6166231 🇨🇳 547 228 8ms 22 May 2025 503rd MeWhenI 🇻🇦 546 267 4ms 23 May 2023 504th janbehrens 🇩🇪 545 223 10ms 2 Jul 2023 505th albanian-laundromat 545 438 29ms 13 Nov 2025 506th Mabeloid 🇳🇴 542 272 2ms 21 Oct 2025 507th tomh1012 541 277 346ms 4 May 2022 508th bidger 540 376 512ms 5 Jan 2023 509th GolfingSuccess 🇬🇷 540 472 3,100ms 8 Aug 2022 510th adamnielson42 🇺🇸 538 334 12ms 6 Dec 2023 511th albanian-laundromat 538 638 15ms 18 Sep 2025 512th MeWhenI 🇻🇦 536 167 10ms 21 May 2024 513th emgordon154 535 202 8ms 7 Apr 2025 514th Phil-RGOMEGA 535 247 2ms 23 Aug 2023 515th MeWhenI 🇻🇦 534 301 65ms 9 May 2023 516th pschmid0 🇺🇸 533 228 6ms 18 Oct 2022 517th Macweese 532 277 2ms 3 Aug 2025 518th TylerBloom 532 368 211ms 22 Nov 2024 519th ovs-code 🇩🇪 531 192 3ms 10 Feb 2023 520th Natanaelel 🇸🇪 528 117 238ms 12 May 2023 521st emgordon154 528 122 46ms 3 Aug 2024 522nd mathisfun271 527 170 10ms 5 Feb 2024 523rd maxpelic 🇺🇸 527 237 9ms 5 Jul 2022 523rd Lv0Sys 🇵🇱 527 237 10ms 20 days ago 525th JunkIce 525 158 343ms 19 Jan 2025 526th inventshah 524 171 9ms 20 Jan 2023 526th RaBa21 🇭🇺 524 171 16ms 17 Jul 2025 528th blaztoma 🇱🇹 523 123 36ms 24 Oct 2025 529th Jacob385 523 388 368ms 23 Oct 2024 530th Shanethegamer 🇺🇸 521 175 742ms 16 Mar 2025 531st strattonwhisler 518 241 9ms 7 May 2025 532nd Lv0Sys 🇵🇱 515 125 37ms 20 days ago 533rd two-bad 🇬🇧 514 243 10ms 25 Feb 2024 534th retrohun 514 287 2ms 30 Dec 2022 535th KatieLG 🇬🇧 511 126 37ms 2 Oct 2025 536th Ernest1338 511 383 183ms 7 Oct 2023 537th MeWhenI 🇻🇦 509 163 487ms 24 May 2024 538th DialFrost 🇸🇬 509 198 135ms 4 Aug 2024 539th alexsave 509 245 10ms 14 Nov 2025 540th janAkali 🇷🇺 509 313 374ms 8 May 2025 541st olleicua 🇺🇸 507 127 40ms 15 Feb 2024 542nd Shanethegamer 🇺🇸 507 226 74ms 27 Jan 2025 543rd ahmetdemirag 🇨🇾 506 177 10ms 21 Oct 2024 543rd Lv0Sys 🇵🇱 506 177 10ms 20 days ago 545th IISResetMe 504 167 305ms 45 hours ago 546th TaserTheFox 🇺🇸 503 178 9ms 1 May 2023 547th c0d3-4-F00d 🇩🇪 503 293 2ms 4 May 2022 548th MeWhenI 🇻🇦 502 259 396ms 18 Nov 2023 549th dokutan 501 182 378ms 7 Apr 2024 550th Shanethegamer 🇺🇸 500 166 577ms 16 Mar 2025 551st Shanethegamer 🇺🇸 500 179 9ms 16 Mar 2025 552nd Yewzir 🇧🇪 500 300 386ms 20 Jun 2024 553rd gigaprofisi 🇺🇸 499 250 9ms 10 Aug 2025 554th scpchicken 🇵🇼 498 393 238ms 3 May 2022 555th OllieBoyne 🇬🇧 497 180 9ms 31 Aug 2022 555th jared-hughes 497 180 10ms 6 Jan 2023 555th b10011 🇫🇮 497 180 10ms 15 Jan 2023 555th scpchicken 🇵🇼 497 180 9ms 22 Nov 2023 559th quimey 495 181 10ms 23 Mar 2023 560th joaosigma 🇵🇹 495 325 69ms 17 Sep 2025 First Prev 481–560 of 818 Next Last