The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Number Spiral 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 720th wh3n3v3r 🇨🇿 443 174 9ms 12 Nov 2024 722nd RobertHoeh 441 175 9ms 3 Mar 2025 723rd Andrey-Plotnikov 441 184 9ms 27 Sep 2025 724th DaCuteRaccoon 441 256 471ms 15 May 2022 725th Msleizak 🇫🇷 439 555 13ms 4 Nov 2022 726th Vaekor 438 176 10ms 3 Aug 2023 726th m42km 438 176 15ms 25 Feb 2024 728th taind772 437 252 177ms 27 Jan 2022 729th prplz 🇦🇺 436 55 33ms 26 Jan 2022 730th olleicua 🇺🇸 436 186 8ms 2 Feb 2024 731st Msleizak 🇫🇷 436 411 1ms 4 Nov 2022 732nd pascscha 433 178 16ms 28 Mar 2022 733rd wobblybits 431 179 9ms 23 Aug 2025 734th KatieLG 🇬🇧 431 188 9ms 25 Oct 2024 735th Andriamanitra 🇫🇮 430 164 45ms 29 Nov 2023 736th dokutan 430 258 1ms 6 Mar 2024 737th dokutan 428 263 96ms 5 days ago 738th KatieLG 🇬🇧 427 165 33ms 13 Apr 2022 739th msbranicky 426 181 16ms 12 Jul 2023 739th AstroOrbis 426 181 10ms 23 days ago 741st Feniske 🇫🇷 426 194 262ms 10 Nov 2023 742nd JRaspass 🇬🇧 426 311 37ms 13 Jun 2022 742nd MeWhenI 🇻🇦 426 311 36ms 14 Jun 2022 742nd dokutan 426 311 37ms 9 Jun 2024 742nd CaedenHarper 🇨🇦 426 311 34ms 22 Jan 2025 746th KatieLG-Transpiler 🇬🇧 425 312 35ms 23 Jun 2022 746th KatieLG 🇬🇧 425 312 36ms 30 Sep 2024 748th trist224 🇫🇷 424 182 16ms 23 Nov 2022 749th eranws 424 191 8ms 2 Sep 2023 750th adoxography 422 167 33ms 20 Mar 2022 751st za3k 422 183 9ms 16 Oct 2022 752nd dokutan 422 276 433ms 24 Sep 2025 752nd h3ra993huskp 🇯🇵 422 276 406ms 18 days ago 754th Msleizak 🇫🇷 422 357 7ms 26 Apr 2023 755th Hortaros 419 184 10ms 15 Jun 2023 756th KingSkyrock 🇺🇸 418 194 8ms 6 Nov 2022 757th bac0id 418 214 1ms 22 Sep 2023 758th MeWhenI 🇻🇦 417 206 1ms 11 Oct 2023 759th Shanethegamer 🇺🇸 416 173 70ms 16 Dec 2024 760th jgbaldwinbrown 416 215 1ms 29 Jun 2022 761st TheZwierzLF 🇵🇱 415 176 852ms 9 days ago 762nd CheeseCake628 🇳🇴 415 186 10ms 16 Nov 2024 763rd ravnskjaer 🇩🇰 415 280 336ms 2 days ago 764th HumanoidCPU 415 319 37ms 9 Mar 2025 765th HumanoidCPU 414 255 3,923ms 24 Oct 2024 766th mossprescott 413 187 9ms 9 Jan 2023 766th AlexanderFair 413 187 10ms 26 Jul 2023 768th jtaxen 410 188 16ms 6 Jun 2024 769th iczelia 🇩🇪 406 244 123ms 19 Oct 2025 770th dokutan 406 260 3,633ms 24 Oct 2024 771st codewrite 🇬🇧 405 251 396ms 12 Jul 2025 772nd yoshykai 405 287 406ms 8 Apr 2025 772nd Schmitt-Very-Cool 405 287 472ms 3 Oct 2025 774th msbranicky 404 181 422ms 17 Jan 2024 775th jacekwladzinski 404 191 15ms 6 Oct 2025 776th bwat2 404 288 420ms 8 Mar 2022 777th mrmena 🇦🇺 404 328 37ms 28 Mar 2024 778th HumanoidCPU 403 201 9ms 29 Aug 2024 779th edsrzf 🇳🇿 403 220 5ms 30 Oct 2024 780th matejmatik123 🇸🇰 403 275 981ms 1 Oct 2025 781st Waffle3z 403 310 1ms 12 May 2022 781st DaCuteRaccoon 403 310 1ms 15 May 2022 781st KatieLG 🇬🇧 403 310 1ms 22 May 2022 781st KatieLG-Transpiler 🇬🇧 403 310 1ms 24 Jun 2022 781st HumanoidCPU 403 310 1ms 21 May 2024 781st CaedenHarper 🇨🇦 403 310 1ms 16 Aug 2025 781st snoozingnewt 🇨🇦 403 310 1ms 9 Oct 2025 788th retrohun 403 329 36ms 28 Dec 2022 788th msbranicky 403 329 36ms 21 Sep 2023 790th KatieLG 🇬🇧 402 192 22ms 13 Apr 2022 791st Mabeloid 🇳🇴 402 311 1ms 4 Oct 2024 792nd Pena86 400 193 9ms 1 Oct 2022 792nd TheZwierzLF 🇵🇱 400 193 16ms 18 May 2025 794th dokutan 399 249 61ms 5 days ago 795th msbranicky 399 278 2ms 28 Sep 2023 796th msbranicky 399 313 1ms 20 Sep 2023 797th Emutis 🇱🇹 396 195 10ms 2 Feb 2025 798th MeWhenI 🇻🇦 395 155 286ms 15 Feb 2023 799th KatieLG 🇬🇧 395 464 1,722ms 13 Sep 2025 800th twocatsinatrenchcoat 394 196 9ms 12 May 2022 First Prev 721–800 of 1,724 Next Last