The Calendar hole will go live in approximately 11 days. Why not try and solve it ahead of time?
Tower of Hanoi in all languages in bytes. 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 Bytes Time Submitted 481st albanian-laundromat 801 78 41ms 26 days ago 482nd albanian-laundromat 801 103 262ms 27 days ago 482nd DialFrost 🇸🇬 801 103 247ms 17 days ago 484th Natanaelel 🇸🇪 800 55 127ms 4 Nov 2025 485th snoozingnewt 🇨🇦 800 60 726ms 19 days ago 486th dokutan 800 92 378ms 22 days ago 487th DialFrost 🇸🇬 798 66 125ms 17 days ago 488th Shanethegamer 🇺🇸 794 92 73ms 3 Nov 2025 488th blaztoma 🇱🇹 794 92 64ms 18 days ago 490th Shanethegamer 🇺🇸 794 100 112ms 3 Nov 2025 491st albanian-laundromat 793 77 2,962ms 27 days ago 492nd neosimsim 793 96 8ms 27 days ago 493rd MeWhenI 🇻🇦 792 56 127ms 27 days ago 494th Shanethegamer 🇺🇸 792 62 94ms 3 Nov 2025 495th MeWhenI 🇻🇦 791 79 39ms 27 days ago 496th albanian-laundromat 790 74 3ms 27 days ago 497th dokutan 787 75 4ms 18 days ago 498th edsrzf 🇳🇿 786 93 66ms 19 days ago 499th vhoulbreque 🇫🇷 786 101 110ms 18 days ago 500th CaedenHarper 🇨🇦 785 57 36ms 21 days ago 501st ovs-code 🇩🇪 785 77 6ms 21 days ago 502nd bitsandbeyond 🇳🇱 785 87 40ms 31 Oct 2025 502nd blaztoma 🇱🇹 785 87 42ms 19 days ago 504th MeWhenI 🇻🇦 783 62 1ms 27 days ago 505th MeWhenI 🇻🇦 779 63 96ms 27 days ago 506th rucin93 🇵🇱 779 102 119ms 22 days ago 506th madex 🇩🇪 779 102 107ms 19 days ago 508th albanian-laundromat 778 90 4ms 6 days ago 509th emgordon154 778 106 265ms 25 days ago 510th albanian-laundromat 776 88 41ms 26 days ago 511th Shanethegamer 🇺🇸 774 62 241ms 4 Nov 2025 511th albanian-laundromat 774 62 701ms 27 days ago 513th emgordon154 774 87 11ms 26 days ago 513th snoozingnewt 🇨🇦 774 87 10ms 19 days ago 515th dokutan 772 77 107ms 15 days ago 516th DialFrost 🇸🇬 771 65 582ms 18 days ago 517th albanian-laundromat 770 103 31ms 26 days ago 518th HumanoidCPU 769 74 129ms 21 days ago 518th Ripick 769 74 137ms 20 days ago 520th CaedenHarper 🇨🇦 767 64 96ms 20 days ago 521st MeWhenI 🇻🇦 766 77 4ms 26 days ago 522nd CaedenHarper 🇨🇦 766 96 153ms 21 days ago 523rd CaedenHarper 🇨🇦 764 58 125ms 20 days ago 524th albanian-laundromat 764 92 349ms 27 days ago 525th AlephSquirrel 763 38 63ms 20 days ago 526th emgordon154 763 80 3,931ms 20 days ago 527th madex 🇩🇪 762 80 2ms 18 days ago 528th dokutan 762 82 38ms 22 days ago 529th blaztoma 🇱🇹 761 63 256ms 19 days ago 530th MeWhenI 🇻🇦 761 136 1,783ms 27 days ago 530th emgordon154 761 136 1,699ms 26 days ago 532nd Shanethegamer 🇺🇸 760 93 78ms 2 Nov 2025 533rd albanian-laundromat 759 75 128ms 25 days ago 534th albanian-laundromat 758 64 2ms 27 days ago 535th albanian-laundromat 757 89 10ms 20 days ago 536th dokutan 754 61 783ms 22 days ago 537th dokutan 754 62 6ms 7 days ago 538th H3XDaemon 753 81 2ms 10 hours ago 539th MeWhenI 🇻🇦 753 97 70ms 26 days ago 540th DialFrost 🇸🇬 752 136 436ms 17 days ago 541st duckyluuk 🇳🇱 750 95 8ms 30 Oct 2025 542nd dokutan 749 59 9ms 22 days ago 543rd bitsandbeyond 🇳🇱 748 90 10ms 31 Oct 2025 544th HumanoidCPU 747 102 8ms 20 days ago 544th bitsandbeyond 🇳🇱 747 102 9ms 20 days ago 546th MeWhenI 🇻🇦 745 57 311ms 26 days ago 546th CaedenHarper 🇨🇦 745 57 275ms 20 days ago 546th bitsandbeyond 🇳🇱 745 57 203ms 20 days ago 549th albanian-laundromat 745 64 2ms 27 days ago 550th MeWhenI 🇻🇦 744 95 78ms 27 days ago 551st MeWhenI 🇻🇦 742 71 87ms 27 days ago 551st snoozingnewt 🇨🇦 742 71 91ms 22 days ago 553rd HumanoidCPU 742 107 106ms 20 days ago 554th emgordon154 741 138 455ms 26 days ago 554th Shanethegamer 🇺🇸 741 138 432ms 16 days ago 556th blaztoma 🇱🇹 740 91 10ms 18 days ago 557th MeWhenI 🇻🇦 739 115 2ms 27 days ago 558th iczelia 🇩🇪 737 60 9ms 19 days ago 559th dokutan 733 61 38ms 22 days ago 559th KatieLG 🇬🇧 733 61 36ms 20 days ago First Prev 481–560 of 1,104 Next Last