The Calendar hole will go live in approximately 10 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 398th DialFrost 🇸🇬 837 68 4ms 17 days ago 402nd fuzzylojik-golf 🇺🇸 837 88 371ms 18 days ago 403rd Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 403rd MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 405th bitsandbeyond 🇳🇱 836 52 125ms 1 Nov 2025 406th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 407th dokutan 836 73 2ms 26 days ago 408th ethanlally 836 84 574ms 23 Nov 2025 408th dokutan 836 84 342ms 22 days ago 408th jkelly467 836 84 390ms 19 days ago 411th GolfingSuccess 🇬🇷 836 94 139ms 22 days ago 411th DialFrost 🇸🇬 836 94 102ms 17 days ago 413th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 414th davecame 835 59 11ms 13 Nov 2025 414th Kacarott 🇦🇺 835 59 11ms 15 Nov 2025 414th commandblockguy 🇺🇸 835 59 11ms 22 days ago 414th YAJUE114514 835 59 12ms 10 days ago 418th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 418th dokutan 835 78 121ms 19 days ago 420th snoozingnewt 🇨🇦 834 53 9ms 22 days ago 420th Yax42 🇫🇷 834 53 9ms 18 days ago 422nd KatieLG 🇬🇧 833 57 414ms 20 days ago 422nd edsrzf 🇳🇿 833 57 432ms 19 days ago 424th CaedenHarper 🇨🇦 833 75 39ms 21 days ago 425th MeWhenI 🇻🇦 833 99 252ms 27 days ago 426th jkelly467 833 102 2ms 19 days ago 427th DialFrost 🇸🇬 832 59 96ms 19 days ago 428th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 429th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 429th blaztoma 🇱🇹 828 54 33ms 20 days ago 431st edsrzf 🇳🇿 828 61 6ms 19 days ago 431st DialFrost 🇸🇬 828 61 5ms 19 days ago 433rd Natanaelel 🇸🇪 828 81 120ms 23 days ago 434th bitsandbeyond 🇳🇱 828 89 363ms 2 Nov 2025 435th kg583 🇺🇸 828 92 9ms 30 Oct 2025 436th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 437th CaedenHarper 🇨🇦 821 56 806ms 21 days ago 438th 5cw 🇺🇸 821 60 11ms 15 Nov 2025 438th taifu 821 60 12ms 13 hours ago 440th AlephSquirrel 819 93 9ms 30 Oct 2025 441st Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 441st fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 443rd voytxt 🇨🇿 818 54 9ms 22 Nov 2025 443rd KatieLG 🇬🇧 818 54 9ms 20 days ago 443rd KrausRaus 🇺🇸 818 54 9ms 17 days ago 446th dokutan 818 78 385ms 26 days ago 447th edsrzf 🇳🇿 818 82 158ms 2 days ago 448th blaztoma 🇱🇹 818 96 149ms 20 days ago 449th blaztoma 🇱🇹 817 101 259ms 19 days ago 450th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 451st snoozingnewt 🇨🇦 816 94 26ms 20 days ago 452nd canissimia 🇦🇶 816 209 3ms 25 days ago 453rd MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 454th MeWhenI 🇻🇦 813 59 238ms 27 days ago 455th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 455th dokutan 813 70 3ms 22 days ago 457th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 458th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 459th AlephSquirrel 812 90 65ms 20 days ago 460th MeWhenI 🇻🇦 810 88 10ms 17 days ago 461st snoozingnewt 🇨🇦 810 94 8ms 20 days ago 461st blaztoma 🇱🇹 810 94 8ms 19 days ago 461st BREMAUCY 🇫🇷 810 94 9ms 14 days ago 464th snoozingnewt 🇨🇦 810 97 120ms 20 days ago 465th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 466th albanian-laundromat 808 61 11ms 23 Nov 2025 466th hiichbindermax 808 61 11ms 17 days ago 466th Emutis 🇱🇹 808 61 12ms 13 days ago 469th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 470th bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 471st luuumine 🇫🇷 806 58 5ms 17 days ago 472nd emgordon154 805 54 128ms 6 hours ago 473rd dokutan 805 61 92ms 22 days ago 474th CaedenHarper 🇨🇦 805 74 101ms 21 days ago 475th Maznek 803 55 9ms 10 days ago 476th MeWhenI 🇻🇦 802 53 3ms 22 days ago 477th CLOStrophobic 🇮🇹 802 95 8ms 17 days ago 478th MeWhenI 🇻🇦 801 63 5ms 27 days ago 479th albanian-laundromat 801 78 41ms 27 days ago 480th dokutan 801 92 378ms 22 days ago First Prev 401–480 of 1,097 Next Last