The Calendar hole will go live in approximately 13 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 bitsandbeyond 🇳🇱 833 78 119ms 1 Nov 2025 401st dokutan 833 78 121ms 16 days ago 403rd jkelly467 833 102 2ms 16 days ago 404th KatieLG 🇬🇧 832 57 414ms 17 days ago 404th edsrzf 🇳🇿 832 57 432ms 17 days ago 406th dokutan 831 61 92ms 19 days ago 407th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 408th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 408th blaztoma 🇱🇹 828 54 33ms 18 days ago 410th edsrzf 🇳🇿 828 61 6ms 17 days ago 410th DialFrost 🇸🇬 828 61 22ms 16 days ago 412th kg583 🇺🇸 828 92 9ms 30 Oct 2025 413th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 414th Natanaelel 🇸🇪 826 81 120ms 20 days ago 415th blaztoma 🇱🇹 824 101 259ms 16 days ago 416th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 417th 5cw 🇺🇸 821 60 11ms 15 Nov 2025 418th AlephSquirrel 819 93 9ms 30 Oct 2025 419th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 419th fuzzylojik-golf 🇺🇸 818 52 3ms 15 days ago 421st voytxt 🇨🇿 818 54 9ms 26 days ago 421st emgordon154 818 54 9ms 24 days ago 421st KatieLG 🇬🇧 818 54 9ms 17 days ago 421st KrausRaus 🇺🇸 818 54 9ms 14 days ago 425th blaztoma 🇱🇹 818 96 149ms 18 days ago 426th Shanethegamer 🇺🇸 817 62 94ms 3 Nov 2025 427th dokutan 817 78 385ms 24 days ago 428th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 429th snoozingnewt 🇨🇦 816 94 26ms 17 days ago 430th canissimia 🇦🇶 816 209 3ms 22 days ago 431st MeWhenI 🇻🇦 813 55 49ms 27 days ago 432nd MeWhenI 🇻🇦 813 59 238ms 25 days ago 433rd bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 434th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 435th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 436th AlephSquirrel 812 90 65ms 17 days ago 437th bitsandbeyond 🇳🇱 811 70 119ms 2 Nov 2025 438th MeWhenI 🇻🇦 810 88 10ms 14 days ago 439th snoozingnewt 🇨🇦 810 94 8ms 17 days ago 439th blaztoma 🇱🇹 810 94 8ms 16 days ago 439th BREMAUCY 🇫🇷 810 94 9ms 12 days ago 442nd snoozingnewt 🇨🇦 810 97 120ms 17 days ago 443rd Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 443rd DialFrost 🇸🇬 809 60 2ms 14 days ago 445th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 446th albanian-laundromat 808 103 262ms 25 days ago 446th DialFrost 🇸🇬 808 103 247ms 14 days ago 448th albanian-laundromat 807 61 11ms 25 days ago 448th hiichbindermax 807 61 11ms 14 days ago 448th Emutis 🇱🇹 807 61 12ms 11 days ago 451st bitsandbeyond 🇳🇱 807 87 625ms 1 Nov 2025 452nd luuumine 🇫🇷 806 58 5ms 15 days ago 453rd Shanethegamer 🇺🇸 805 55 133ms 4 Nov 2025 454th MeWhenI 🇻🇦 804 63 96ms 25 days ago 455th Maznek 803 55 9ms 8 days ago 456th CaedenHarper 🇨🇦 803 74 101ms 18 days ago 457th MeWhenI 🇻🇦 802 53 3ms 19 days ago 458th CLOStrophobic 🇮🇹 802 95 8ms 14 days ago 459th MeWhenI 🇻🇦 801 63 5ms 24 days ago 460th albanian-laundromat 801 78 41ms 24 days ago 461st Natanaelel 🇸🇪 800 55 127ms 4 Nov 2025 462nd emgordon154 800 60 725ms 17 days ago 462nd snoozingnewt 🇨🇦 800 60 726ms 17 days ago 464th dokutan 800 92 378ms 19 days ago 465th DialFrost 🇸🇬 798 66 125ms 14 days ago 466th JOrE20 🇺🇸 794 62 11ms 22 days ago 466th HumanoidCPU 794 62 11ms 19 days ago 466th Yewzir 🇧🇪 794 62 12ms 18 days ago 466th plcc0 794 62 12ms 17 days ago 466th anter69 🇭🇺 794 62 13ms 17 days ago 466th inventshah 794 62 10ms 10 days ago 472nd Shanethegamer 🇺🇸 794 92 73ms 3 Nov 2025 472nd blaztoma 🇱🇹 794 92 64ms 16 days ago 474th albanian-laundromat 793 77 2,962ms 25 days ago 475th neosimsim 793 96 8ms 25 days ago 476th CaedenHarper 🇨🇦 792 64 96ms 18 days ago 477th MeWhenI 🇻🇦 791 56 127ms 25 days ago 477th dokutan 791 56 130ms 16 days ago 479th MeWhenI 🇻🇦 791 79 39ms 25 days ago 480th albanian-laundromat 790 60 374ms 25 days ago First Prev 401–480 of 1,065 Next Last