The Calendar hole will go live in approximately 5 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 MeWhenI 🇻🇦 845 70 4ms 24 Nov 2025 402nd edsrzf 🇳🇿 845 93 137ms 25 days ago 403rd Natanaelel 🇸🇪 844 53 38ms 4 Nov 2025 404th emgordon154 842 57 906ms 5 days ago 405th blaztoma 🇱🇹 842 60 7ms 26 days ago 406th dokutan 840 92 58ms 24 Nov 2025 407th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 408th Shanethegamer 🇺🇸 837 68 4ms 4 Nov 2025 408th MeWhenI 🇻🇦 837 68 3ms 23 Nov 2025 408th edsrzf 🇳🇿 837 68 3ms 25 days ago 408th DialFrost 🇸🇬 837 68 3ms 23 days ago 412th fuzzylojik-golf 🇺🇸 837 88 371ms 24 days ago 413th Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 413th MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 415th bitsandbeyond 🇳🇱 836 52 125ms 1 Nov 2025 416th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 417th davecame 836 59 11ms 13 Nov 2025 417th Kacarott 🇦🇺 836 59 11ms 15 Nov 2025 417th commandblockguy 🇺🇸 836 59 11ms 28 Nov 2025 417th YAJUE114514 836 59 12ms 16 days ago 421st dokutan 836 73 2ms 24 Nov 2025 422nd ethanlally 836 84 574ms 23 Nov 2025 422nd dokutan 836 84 342ms 28 Nov 2025 422nd jkelly467 836 84 390ms 24 days ago 425th GolfingSuccess 🇬🇷 836 94 139ms 28 Nov 2025 425th DialFrost 🇸🇬 836 94 102ms 23 days ago 427th snoozingnewt 🇨🇦 835 53 9ms 28 Nov 2025 427th Yax42 🇫🇷 835 53 9ms 24 days ago 429th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 430th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 430th dokutan 835 78 121ms 25 days ago 432nd MeWhenI 🇻🇦 834 99 252ms 23 Nov 2025 433rd KatieLG 🇬🇧 833 57 414ms 25 days ago 433rd edsrzf 🇳🇿 833 57 432ms 25 days ago 433rd Natanaelel 🇸🇪 833 57 484ms 32 hours ago 436th CaedenHarper 🇨🇦 833 75 39ms 26 days ago 437th jkelly467 833 102 2ms 24 days ago 438th DialFrost 🇸🇬 832 59 96ms 24 days ago 439th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 440th Shanethegamer 🇺🇸 828 54 39ms 3 Nov 2025 440th blaztoma 🇱🇹 828 54 35ms 26 days ago 442nd edsrzf 🇳🇿 828 61 6ms 25 days ago 442nd DialFrost 🇸🇬 828 61 5ms 24 days ago 444th Natanaelel 🇸🇪 828 81 120ms 27 Nov 2025 445th bitsandbeyond 🇳🇱 828 89 363ms 2 Nov 2025 446th kg583 🇺🇸 828 92 9ms 30 Oct 2025 447th sean-niemann 🇺🇸 825 66 215ms 24 days ago 448th 5cw 🇺🇸 822 60 11ms 15 Nov 2025 448th Lv0Sys 🇵🇱 822 60 12ms 2 days ago 450th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 451st CaedenHarper 🇨🇦 821 56 806ms 26 days ago 452nd voytxt 🇨🇿 819 54 9ms 22 Nov 2025 452nd KatieLG 🇬🇧 819 54 9ms 25 days ago 452nd KrausRaus 🇺🇸 819 54 9ms 23 days ago 455th AlephSquirrel 819 93 9ms 30 Oct 2025 456th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 456th fuzzylojik-golf 🇺🇸 818 52 3ms 23 days ago 458th dokutan 818 78 385ms 24 Nov 2025 459th edsrzf 🇳🇿 818 82 158ms 7 days ago 460th snoozingnewt 🇨🇦 818 94 26ms 25 days ago 461st blaztoma 🇱🇹 818 96 124ms 26 days ago 462nd blaztoma 🇱🇹 817 101 259ms 25 days ago 463rd KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 464th MeWhenI 🇻🇦 814 59 223ms 23 Nov 2025 465th MeWhenI 🇻🇦 813 55 35ms 21 Nov 2025 466th CaedenHarper 🇨🇦 813 67 165ms 26 days ago 467th dokutan 813 70 3ms 27 days ago 468th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 469th AlephSquirrel 812 90 65ms 25 days ago 470th MeWhenI 🇻🇦 810 88 10ms 22 days ago 471st snoozingnewt 🇨🇦 810 94 8ms 25 days ago 471st blaztoma 🇱🇹 810 94 8ms 25 days ago 471st BREMAUCY 🇫🇷 810 94 9ms 20 days ago 474th snoozingnewt 🇨🇦 810 97 120ms 25 days ago 475th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 476th albanian-laundromat 808 61 11ms 23 Nov 2025 476th hiichbindermax 808 61 11ms 22 days ago 476th Emutis 🇱🇹 808 61 12ms 19 days ago 479th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 480th bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 First Prev 401–480 of 1,118 Next Last