The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Tower of Hanoi 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 401st GolfingSuccess 🇬🇷 836 94 139ms 22 days ago 401st DialFrost 🇸🇬 836 94 102ms 17 days ago 403rd rucin93 🇵🇱 835 56 5ms 30 Oct 2025 404th davecame 835 59 11ms 13 Nov 2025 404th Kacarott 🇦🇺 835 59 11ms 15 Nov 2025 404th commandblockguy 🇺🇸 835 59 11ms 22 days ago 404th YAJUE114514 835 59 12ms 10 days ago 408th dokutan 835 70 3ms 21 days ago 409th dokutan 835 73 2ms 26 days ago 410th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 410th dokutan 835 78 121ms 19 days ago 412th snoozingnewt 🇨🇦 834 53 9ms 22 days ago 412th Yax42 🇫🇷 834 53 9ms 18 days ago 414th KatieLG 🇬🇧 833 57 414ms 19 days ago 414th edsrzf 🇳🇿 833 57 432ms 19 days ago 416th CaedenHarper 🇨🇦 833 75 39ms 20 days ago 417th MeWhenI 🇻🇦 833 99 252ms 27 days ago 418th jkelly467 833 102 2ms 18 days ago 419th DialFrost 🇸🇬 832 59 96ms 18 days ago 420th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 421st Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 421st blaztoma 🇱🇹 828 54 33ms 20 days ago 423rd emgordon154 828 58 1,129ms 13 hours ago 424th edsrzf 🇳🇿 828 61 6ms 19 days ago 424th DialFrost 🇸🇬 828 61 6ms 18 days ago 426th Natanaelel 🇸🇪 828 81 120ms 23 days ago 427th kg583 🇺🇸 828 92 9ms 30 Oct 2025 428th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 429th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 430th CaedenHarper 🇨🇦 821 56 806ms 20 days ago 431st 5cw 🇺🇸 821 60 11ms 15 Nov 2025 431st taifu 821 60 12ms 74 mins ago 433rd AlephSquirrel 819 93 9ms 30 Oct 2025 434th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 434th fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 436th voytxt 🇨🇿 818 54 9ms 22 Nov 2025 436th KatieLG 🇬🇧 818 54 9ms 19 days ago 436th KrausRaus 🇺🇸 818 54 9ms 17 days ago 439th dokutan 818 78 385ms 26 days ago 440th edsrzf 🇳🇿 818 82 158ms 38 hours ago 441st blaztoma 🇱🇹 818 96 149ms 20 days ago 442nd blaztoma 🇱🇹 817 101 259ms 19 days ago 443rd KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 444th snoozingnewt 🇨🇦 816 94 26ms 19 days ago 445th canissimia 🇦🇶 816 209 3ms 24 days ago 446th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 447th MeWhenI 🇻🇦 813 59 238ms 27 days ago 448th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 449th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 450th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 451st Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 452nd AlephSquirrel 812 90 65ms 19 days ago 453rd MeWhenI 🇻🇦 810 88 10ms 16 days ago 454th snoozingnewt 🇨🇦 810 94 8ms 19 days ago 454th blaztoma 🇱🇹 810 94 8ms 19 days ago 454th BREMAUCY 🇫🇷 810 94 9ms 14 days ago 457th snoozingnewt 🇨🇦 810 97 120ms 19 days ago 458th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 459th albanian-laundromat 808 61 11ms 27 days ago 459th hiichbindermax 808 61 11ms 16 days ago 459th Emutis 🇱🇹 808 61 12ms 13 days ago 462nd Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 463rd bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 464th luuumine 🇫🇷 806 58 5ms 17 days ago 465th dokutan 805 61 92ms 21 days ago 466th Maznek 803 55 9ms 10 days ago 467th CaedenHarper 🇨🇦 803 74 101ms 20 days ago 468th MeWhenI 🇻🇦 802 53 3ms 21 days ago 469th CLOStrophobic 🇮🇹 802 95 8ms 16 days ago 470th MeWhenI 🇻🇦 801 63 5ms 26 days ago 471st albanian-laundromat 801 78 41ms 26 days ago 472nd albanian-laundromat 801 103 262ms 27 days ago 472nd DialFrost 🇸🇬 801 103 247ms 17 days ago 474th snoozingnewt 🇨🇦 800 60 726ms 19 days ago 475th dokutan 800 92 378ms 22 days ago 476th DialFrost 🇸🇬 798 66 125ms 17 days ago 477th JOrE20 🇺🇸 795 62 11ms 25 days ago 477th HumanoidCPU 795 62 11ms 21 days ago 477th Yewzir 🇧🇪 795 62 12ms 20 days ago 477th plcc0 795 62 12ms 19 days ago First Prev 401–480 of 1,088 Next Last