The Calendar hole will go live in approximately 12 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 CaedenHarper 🇨🇦 833 75 39ms 19 days ago 402nd bitsandbeyond 🇳🇱 833 78 119ms 1 Nov 2025 402nd dokutan 833 78 121ms 18 days ago 404th jkelly467 833 102 2ms 17 days ago 405th KatieLG 🇬🇧 832 57 414ms 18 days ago 405th edsrzf 🇳🇿 832 57 432ms 18 days ago 407th dokutan 831 61 92ms 20 days ago 408th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 409th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 409th blaztoma 🇱🇹 828 54 33ms 19 days ago 411th edsrzf 🇳🇿 828 61 6ms 18 days ago 411th DialFrost 🇸🇬 828 61 22ms 17 days ago 413th Natanaelel 🇸🇪 828 81 120ms 22 days ago 414th kg583 🇺🇸 828 92 9ms 30 Oct 2025 415th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 416th blaztoma 🇱🇹 824 101 259ms 17 days ago 417th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 418th 5cw 🇺🇸 821 60 11ms 15 Nov 2025 418th enigma 821 60 13ms 81 mins ago 420th AlephSquirrel 819 93 9ms 30 Oct 2025 421st Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 421st fuzzylojik-golf 🇺🇸 818 52 3ms 16 days ago 423rd voytxt 🇨🇿 818 54 9ms 27 days ago 423rd emgordon154 818 54 9ms 25 days ago 423rd KatieLG 🇬🇧 818 54 9ms 18 days ago 423rd KrausRaus 🇺🇸 818 54 9ms 16 days ago 427th edsrzf 🇳🇿 818 82 158ms 13 hours ago 428th blaztoma 🇱🇹 818 96 149ms 19 days ago 429th Shanethegamer 🇺🇸 817 62 94ms 3 Nov 2025 430th dokutan 817 78 385ms 25 days ago 431st KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 432nd snoozingnewt 🇨🇦 816 94 26ms 18 days ago 433rd canissimia 🇦🇶 816 209 3ms 23 days ago 434th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 435th MeWhenI 🇻🇦 813 59 238ms 26 days ago 436th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 437th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 438th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 439th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 440th AlephSquirrel 812 90 65ms 18 days ago 441st MeWhenI 🇻🇦 810 88 10ms 15 days ago 442nd snoozingnewt 🇨🇦 810 94 8ms 18 days ago 442nd blaztoma 🇱🇹 810 94 8ms 17 days ago 442nd BREMAUCY 🇫🇷 810 94 9ms 13 days ago 445th snoozingnewt 🇨🇦 810 97 120ms 18 days ago 446th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 446th DialFrost 🇸🇬 809 60 2ms 16 days ago 448th albanian-laundromat 808 61 11ms 26 days ago 448th hiichbindermax 808 61 11ms 15 days ago 448th Emutis 🇱🇹 808 61 12ms 12 days ago 451st Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 452nd albanian-laundromat 808 103 262ms 26 days ago 452nd DialFrost 🇸🇬 808 103 247ms 16 days ago 454th bitsandbeyond 🇳🇱 807 87 625ms 1 Nov 2025 455th luuumine 🇫🇷 806 58 5ms 16 days ago 456th Shanethegamer 🇺🇸 805 55 133ms 4 Nov 2025 457th MeWhenI 🇻🇦 804 63 96ms 26 days ago 458th Maznek 803 55 9ms 9 days ago 459th CaedenHarper 🇨🇦 803 74 101ms 19 days ago 460th MeWhenI 🇻🇦 802 53 3ms 20 days ago 461st CLOStrophobic 🇮🇹 802 95 8ms 15 days ago 462nd MeWhenI 🇻🇦 801 63 5ms 25 days ago 463rd albanian-laundromat 801 78 41ms 25 days ago 464th emgordon154 800 60 725ms 18 days ago 464th snoozingnewt 🇨🇦 800 60 726ms 18 days ago 466th dokutan 800 92 378ms 21 days ago 467th DialFrost 🇸🇬 798 66 125ms 16 days ago 468th JOrE20 🇺🇸 795 62 11ms 24 days ago 468th HumanoidCPU 795 62 11ms 20 days ago 468th Yewzir 🇧🇪 795 62 12ms 19 days ago 468th plcc0 795 62 12ms 18 days ago 468th anter69 🇭🇺 795 62 13ms 18 days ago 468th inventshah 795 62 10ms 11 days ago 468th SB-945 795 62 12ms 6 hours ago 475th Shanethegamer 🇺🇸 794 92 73ms 3 Nov 2025 475th blaztoma 🇱🇹 794 92 64ms 17 days ago 477th albanian-laundromat 793 77 2,962ms 26 days ago 478th neosimsim 793 96 8ms 26 days ago 479th CaedenHarper 🇨🇦 792 64 96ms 19 days ago 480th MeWhenI 🇻🇦 791 56 127ms 26 days ago First Prev 401–480 of 1,072 Next Last