The Calendar hole will go live in approximately 7 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 400th aksyristos 683 113 10ms 30 Dec 2022 402nd CLOStrophobic 🇮🇹 683 145 5ms 1 Mar 2025 403rd DialFrost 🇸🇬 681 130 6ms 17 Nov 2023 404th GrayJoKing 🇦🇺 681 146 76ms 2 Jun 2022 405th Steffan153 🇫🇮 680 171 429ms 26 Feb 2024 406th MeWhenI 🇻🇦 678 175 3ms 24 Jul 2023 407th HumanoidCPU 678 359 10ms 21 May 2024 408th SirBogman 🇺🇸 677 114 9ms 11 May 2022 408th Babafaba 677 114 9ms 26 days ago 410th stefangimmillaro 676 156 3,286ms 11 Nov 2024 411th stefangimmillaro 673 151 377ms 11 Nov 2024 412th RYNO8 671 115 9ms 25 Aug 2023 413th edsrzf 🇳🇿 670 141 3ms 25 Nov 2024 414th MeWhenI 🇻🇦 670 192 271ms 9 Feb 2023 415th AlephSquirrel 669 148 5ms 17 Mar 2023 415th Natanaelel 🇸🇪 669 148 131ms 16 Jun 2025 417th Yewzir 🇧🇪 668 160 110ms 4 Feb 2024 418th MeWhenI 🇻🇦 666 124 251ms 29 Jan 2023 419th DialFrost 🇸🇬 665 106 36ms 2 Jun 2024 420th annaproxy 665 116 10ms 26 Jan 2022 420th Bubbler-4 665 116 9ms 28 Jan 2022 420th QuincyNash 🇺🇸 665 116 9ms 29 Nov 2022 420th firegene 🇮🇪 665 116 10ms 26 Jan 2023 424th dokutan 663 367 10ms 31 Oct 2023 424th CaedenHarper 🇨🇦 663 367 10ms 24 Jan 2025 426th DialFrost 🇸🇬 661 169 130ms 25 Dec 2023 427th yzhs 🇩🇪 660 150 114ms 26 Jun 2023 428th MarcMush 🇫🇷 659 93 1,029ms 7 Jan 2024 429th Irratix 🇳🇱 659 117 9ms 25 Apr 2022 429th mathisfun271 659 117 9ms 15 Dec 2023 429th ndren 659 117 10ms 25 Jul 2025 429th CaedenHarper 🇨🇦 659 117 10ms 6 Oct 2025 433rd tayloia 🇬🇧 659 123 8ms 2 May 2023 433rd targrik 659 123 9ms 9 Jun 2025 435th jared-hughes 659 128 2ms 17 Jul 2022 436th Alessandro-Balconi 🇮🇹 658 90 85ms 15 Jul 2023 437th Jasper-Ty 🇵🇭 658 136 1ms 27 Apr 2024 438th stefangimmillaro 656 169 129ms 31 Aug 2023 439th emgordon154 656 196 259ms 17 Jan 2025 440th GrayJoKing 🇦🇺 655 110 62ms 27 Jul 2025 441st Yewzir 🇧🇪 655 145 105ms 22 Dec 2024 442nd DialFrost 🇸🇬 654 150 2ms 15 Apr 2025 443rd sean-niemann 🇺🇸 653 112 2ms 19 Nov 2023 443rd SirBogman 🇺🇸 653 112 838ms 20 Jan 2024 443rd CaedenHarper 🇨🇦 653 112 557ms 14 Aug 2025 443rd Babafaba 653 112 617ms 26 days ago 447th error256 653 136 6ms 23 Dec 2024 448th MeWhenI 🇻🇦 652 153 41ms 4 Sep 2024 449th stefangimmillaro 652 169 125ms 13 Nov 2023 450th pschmid0 🇺🇸 651 136 5ms 23 Oct 2022 451st InigoK 🇺🇸 648 119 9ms 8 Jun 2023 452nd edsrzf 🇳🇿 648 137 8ms 13 days ago 453rd error256 648 138 2ms 24 Dec 2024 454th Yewzir 🇧🇪 647 113 1ms 21 Dec 2023 455th edsrzf 🇳🇿 647 153 6ms 13 days ago 456th snoozingnewt 🇨🇦 646 137 5ms 16 Sep 2025 457th DialFrost 🇸🇬 645 95 1,754ms 24 May 2024 458th duckyluuk 🇳🇱 645 186 9ms 18 Dec 2024 459th DialFrost 🇸🇬 644 92 85ms 23 Nov 2025 460th madex 🇩🇪 644 139 2ms 18 Mar 2022 461st Alex-x90 🇺🇸 643 120 9ms 15 Sep 2023 461st fourth-bit 643 120 9ms 8 Oct 2024 463rd sean-niemann 🇺🇸 641 120 140ms 21 Oct 2025 464th m-tkach 🇺🇦 641 153 2ms 27 Oct 2022 465th stefangimmillaro 639 127 8ms 27 Sep 2024 466th betaveros 638 121 9ms 6 Jan 2023 467th HumanoidCPU 637 174 65ms 29 Aug 2024 468th rucin93 🇵🇱 636 121 142ms 27 Dec 2024 469th tatzyr 🇯🇵 635 111 36ms 15 Feb 2025 470th hemphen 635 160 346ms 6 Aug 2022 471st Artemis21 🇬🇧 632 122 9ms 10 Jan 2025 471st plcc0 632 122 9ms 25 Mar 2025 473rd MeWhenI 🇻🇦 631 179 474ms 4 Mar 2022 474th KenanSi 630 48 2ms 24 Feb 2022 475th MeWhenI 🇻🇦 629 185 457ms 7 Nov 2025 476th Yewzir 🇧🇪 628 162 315ms 30 Dec 2023 477th Waffle3z 627 177 1ms 26 Jan 2022 478th tobeannouncd 626 158 120ms 10 Jan 2024 479th DialFrost 🇸🇬 625 117 2ms 21 Dec 2024 480th lynn 625 241 7ms 16 Mar 2023 First Prev 401–480 of 1,726 Next Last