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 401st ethanlally 836 84 574ms 23 Nov 2025 401st dokutan 836 84 342ms 22 days ago 401st jkelly467 836 84 390ms 19 days ago 404th fuzzylojik-golf 🇺🇸 836 88 371ms 18 days ago 405th GolfingSuccess 🇬🇷 836 94 139ms 22 days ago 405th DialFrost 🇸🇬 836 94 102ms 17 days ago 407th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 408th davecame 835 59 11ms 13 Nov 2025 408th Kacarott 🇦🇺 835 59 11ms 15 Nov 2025 408th commandblockguy 🇺🇸 835 59 11ms 22 days ago 408th YAJUE114514 835 59 12ms 10 days ago 412th dokutan 835 70 3ms 22 days ago 413th dokutan 835 73 2ms 26 days ago 414th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 414th dokutan 835 78 121ms 19 days ago 416th snoozingnewt 🇨🇦 834 53 9ms 22 days ago 416th Yax42 🇫🇷 834 53 9ms 18 days ago 418th KatieLG 🇬🇧 833 57 414ms 20 days ago 418th edsrzf 🇳🇿 833 57 432ms 19 days ago 420th CaedenHarper 🇨🇦 833 75 39ms 20 days ago 421st MeWhenI 🇻🇦 833 99 252ms 27 days ago 422nd jkelly467 833 102 2ms 19 days ago 423rd DialFrost 🇸🇬 832 59 96ms 19 days ago 424th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 425th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 425th blaztoma 🇱🇹 828 54 33ms 20 days ago 427th edsrzf 🇳🇿 828 61 6ms 19 days ago 427th DialFrost 🇸🇬 828 61 5ms 19 days ago 429th Natanaelel 🇸🇪 828 81 120ms 23 days ago 430th kg583 🇺🇸 828 92 9ms 30 Oct 2025 431st bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 432nd rucin93 🇵🇱 822 76 41ms 30 Oct 2025 433rd CaedenHarper 🇨🇦 821 56 806ms 20 days ago 434th 5cw 🇺🇸 821 60 11ms 15 Nov 2025 434th taifu 821 60 12ms 9 hours ago 436th AlephSquirrel 819 93 9ms 30 Oct 2025 437th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 437th fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 439th voytxt 🇨🇿 818 54 9ms 22 Nov 2025 439th KatieLG 🇬🇧 818 54 9ms 20 days ago 439th KrausRaus 🇺🇸 818 54 9ms 17 days ago 442nd dokutan 818 78 385ms 26 days ago 443rd edsrzf 🇳🇿 818 82 158ms 47 hours ago 444th blaztoma 🇱🇹 818 96 149ms 20 days ago 445th blaztoma 🇱🇹 817 101 259ms 19 days ago 446th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 447th snoozingnewt 🇨🇦 816 94 26ms 20 days ago 448th canissimia 🇦🇶 816 209 3ms 25 days ago 449th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 450th MeWhenI 🇻🇦 813 59 238ms 27 days ago 451st bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 452nd bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 453rd bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 454th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 455th AlephSquirrel 812 90 65ms 20 days ago 456th MeWhenI 🇻🇦 810 88 10ms 17 days ago 457th snoozingnewt 🇨🇦 810 94 8ms 20 days ago 457th blaztoma 🇱🇹 810 94 8ms 19 days ago 457th BREMAUCY 🇫🇷 810 94 9ms 14 days ago 460th snoozingnewt 🇨🇦 810 97 120ms 20 days ago 461st Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 462nd albanian-laundromat 808 61 11ms 27 days ago 462nd hiichbindermax 808 61 11ms 17 days ago 462nd Emutis 🇱🇹 808 61 12ms 13 days ago 465th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 466th bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 467th luuumine 🇫🇷 806 58 5ms 17 days ago 468th emgordon154 805 54 128ms 3 hours ago 469th dokutan 805 61 92ms 22 days ago 470th Maznek 803 55 9ms 10 days ago 471st CaedenHarper 🇨🇦 803 74 101ms 20 days ago 472nd MeWhenI 🇻🇦 802 53 3ms 21 days ago 473rd CLOStrophobic 🇮🇹 802 95 8ms 17 days ago 474th MeWhenI 🇻🇦 801 63 5ms 27 days ago 475th albanian-laundromat 801 78 41ms 27 days ago 476th albanian-laundromat 801 103 262ms 27 days ago 477th snoozingnewt 🇨🇦 800 60 726ms 20 days ago 478th dokutan 800 92 378ms 22 days ago 479th DialFrost 🇸🇬 798 66 125ms 17 days ago 480th JOrE20 🇺🇸 795 62 11ms 25 days ago First Prev 401–480 of 1,092 Next Last