The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Spelling Numbers 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 561st boxjelly 581 565 4ms 17 Feb 2021 562nd kjetillll 🇮🇩 580 305 4ms 19 May 2021 563rd sean-niemann 🇺🇸 580 414 487ms 24 Sep 2025 563rd dokutan 580 414 481ms 23 Oct 2025 565th bricknellj 579 328 13ms 19 Jul 2024 566th Florian-Mt 579 464 10ms 12 Jul 2024 567th cmayer777 579 598 82ms 19 Dec 2022 568th SkimnerPhi 578 465 10ms 5 Dec 2020 569th anter69 🇭🇺 577 329 15ms 13 Mar 2025 570th sebipopa 🇷🇴 576 467 10ms 12 Sep 2022 570th Ow0cast 576 467 11ms 17 Oct 2025 572nd ETHproductions 🇺🇸 574 468 15ms 19 Dec 2018 573rd MeWhenI 🇻🇦 573 309 4ms 16 Apr 2023 574th Kacarott 🇦🇺 572 396 87ms 13 Sep 2024 575th sultan 571 421 396ms 26 Feb 2024 576th ian-h-chamberlain 🇺🇸 571 640 262ms 25 days ago 577th ericlangedijk 🇸🇮 566 702 27ms 18 Feb 2022 578th janbehrens 🇩🇪 564 314 5ms 28 May 2021 579th stefangimmillaro 564 426 476ms 6 Oct 2025 580th lacroixjonathan87 561 487 9ms 6 Sep 2020 581st janbehrens 🇩🇪 559 340 14ms 17 Jun 2023 582nd CaedenHarper 🇨🇦 559 430 468ms 5 Oct 2025 583rd ahmetdemirag 🇨🇾 556 342 13ms 11 Aug 2024 584th TFeld00 🇩🇰 554 343 32ms 11 Nov 2020 585th MeWhenI 🇻🇦 554 369 36ms 13 Dec 2021 586th yokasuretsu 552 225 176ms 30 Nov 2021 587th neihousaigaai 549 346 13ms 7 Jul 2021 587th sultan 549 346 13ms 26 Feb 2024 587th 051 🇸🇬 549 346 25ms 28 Feb 2024 590th marcin7Cd 548 347 20ms 16 Dec 2020 590th CornerMercury 🇬🇧 548 347 13ms 2 days ago 592nd TimCurwick 🇺🇸 548 451 335ms 27 Jan 2021 593rd annaproxy 547 560 17ms 13 Jan 2023 594th lrustand 546 348 14ms 18 Jan 2018 595th jared-hughes 544 349 13ms 25 Mar 2022 595th shelerr 544 349 13ms 23 Aug 2025 597th akshatj27 🇦🇶 544 494 11ms 11 Jan 2022 598th StefanHabel 🇨🇦 543 350 22ms 20 Apr 2024 599th TornadoCookie 543 605 3ms 25 Dec 2022 600th Attero 🇸🇪 541 351 13ms 13 Oct 2020 601st zakariamouhid 540 498 10ms 14 May 2023 602nd scpchicken 🇵🇼 538 329 5ms 30 Jan 2023 603rd inventshah 537 354 34ms 27 Jan 2023 603rd TaserTheFox 🇺🇸 537 354 19ms 20 Apr 2023 605th KevinMarquette 🇺🇸 536 461 314ms 8 Jun 2020 606th OllieBoyne 🇬🇧 535 355 14ms 18 Apr 2022 607th lynn 535 479 26ms 25 Jul 2021 608th jacklynnepenick 534 356 13ms 17 Aug 2021 608th annaproxy 534 356 21ms 14 Aug 2022 610th keelanfh 532 357 15ms 14 Mar 2023 611th daedals 531 358 15ms 22 May 2019 611th GolfingSuccess 🇬🇷 531 358 14ms 14 Mar 2025 613th OddballGreg 531 449 39ms 26 Sep 2020 614th logvp 529 359 13ms 27 Dec 2023 615th annaproxy 529 557 371ms 29 Mar 2022 616th galloj 🇨🇿 528 361 277ms 26 Feb 2023 617th AlexDaniel 🇪🇪 527 236 209ms 14 Nov 2017 618th cmdrsabre 527 257 848ms 7 Feb 2020 619th yzhs 🇩🇪 526 361 12ms 29 Feb 2020 619th duckyluuk 🇳🇱 526 361 33ms 6 Sep 2024 619th Pyroan 526 361 15ms 8 Mar 2025 622nd jatloe 525 362 17ms 28 Oct 2024 622nd Artemis21 🇬🇧 525 362 14ms 13 days ago 624th fourth-bit 523 363 13ms 14 Jul 2023 624th mathisfun271 523 363 14ms 23 Nov 2023 626th chartung17 522 460 415ms 1 Jan 2024 627th markus-rekdal 521 365 20ms 15 Nov 2019 627th MichalMarsalek 🇨🇿 521 365 13ms 8 Dec 2022 629th rambox11 518 519 11ms 19 Jul 2018 630th Irratix 🇳🇱 516 368 1,002ms 4 Jul 2022 631st dzhang314 515 369 22ms 13 Aug 2019 631st prplz 🇦🇺 515 369 13ms 19 Oct 2020 633rd tomh1012 514 573 375ms 21 Nov 2021 634th myfatemi04 511 372 14ms 9 Jan 2018 634th CedricGebistorf 511 372 13ms 13 Mar 2022 634th msbranicky 511 372 19ms 9 Aug 2023 637th btjones0 509 373 21ms 28 Dec 2020 637th AkashTandon167 509 373 13ms 24 Jan 2021 637th quimey 509 373 12ms 3 Aug 2023 637th andrewjc2000 509 373 12ms 27 Mar 2025 First Prev 561–640 of 1,052 Next Last
