The Calendar hole will go live in approximately 6 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 481st MeWhenI 🇻🇦 802 53 3ms 26 days ago 482nd CLOStrophobic 🇮🇹 802 95 8ms 21 days ago 483rd albanian-laundromat 802 103 262ms 23 Nov 2025 484th MeWhenI 🇻🇦 801 63 5ms 24 Nov 2025 485th albanian-laundromat 801 78 41ms 24 Nov 2025 486th dokutan 801 92 378ms 26 days ago 487th snoozingnewt 🇨🇦 800 60 726ms 24 days ago 488th DialFrost 🇸🇬 798 66 125ms 21 days ago 489th JOrE20 🇺🇸 795 62 11ms 25 Nov 2025 489th HumanoidCPU 795 62 11ms 26 days ago 489th Yewzir 🇧🇪 795 62 12ms 25 days ago 489th plcc0 795 62 12ms 24 days ago 489th anter69 🇭🇺 795 62 13ms 24 days ago 489th inventshah 795 62 10ms 17 days ago 489th SB-945 795 62 12ms 6 days ago 496th albanian-laundromat 794 77 2,962ms 23 Nov 2025 497th Shanethegamer 🇺🇸 794 92 70ms 3 Nov 2025 497th blaztoma 🇱🇹 794 92 64ms 23 days ago 499th neosimsim 793 96 8ms 23 Nov 2025 500th albanian-laundromat 792 60 374ms 23 Nov 2025 501st Shanethegamer 🇺🇸 792 62 94ms 3 Nov 2025 502nd bitsandbeyond 🇳🇱 792 74 1,242ms 31 Oct 2025 503rd Shanethegamer 🇺🇸 791 55 133ms 4 Nov 2025 504th MeWhenI 🇻🇦 791 79 39ms 23 Nov 2025 505th bitsandbeyond 🇳🇱 790 72 3ms 2 Nov 2025 506th dokutan 787 75 4ms 23 days ago 507th edsrzf 🇳🇿 786 93 64ms 24 days ago 508th Shanethegamer 🇺🇸 786 100 112ms 3 Nov 2025 509th Natanaelel 🇸🇪 785 55 120ms 4 Nov 2025 510th CaedenHarper 🇨🇦 785 57 36ms 26 days ago 511th ovs-code 🇩🇪 785 77 6ms 25 days ago 512th bitsandbeyond 🇳🇱 785 87 40ms 31 Oct 2025 512th blaztoma 🇱🇹 785 87 42ms 23 days ago 514th emgordon154 784 78 2,848ms 4 days ago 515th MeWhenI 🇻🇦 783 62 1ms 23 Nov 2025 516th emgordon154 783 86 12ms 4 days ago 517th Kacarott 🇦🇺 781 198 3ms 20 days ago 518th MeWhenI 🇻🇦 779 63 96ms 23 Nov 2025 519th emgordon154 779 106 265ms 25 Nov 2025 520th bitsandbeyond 🇳🇱 778 70 119ms 2 Nov 2025 521st albanian-laundromat 778 90 3ms 11 days ago 522nd vhoulbreque 🇫🇷 778 101 110ms 23 days ago 523rd MeWhenI 🇻🇦 776 56 127ms 23 Nov 2025 523rd dokutan 776 56 130ms 23 days ago 525th albanian-laundromat 776 88 41ms 24 Nov 2025 526th Shanethegamer 🇺🇸 774 62 235ms 4 Nov 2025 526th albanian-laundromat 774 62 701ms 23 Nov 2025 528th snoozingnewt 🇨🇦 774 87 10ms 24 days ago 529th DialFrost 🇸🇬 773 65 582ms 23 days ago 530th dokutan 773 77 107ms 19 days ago 531st dokutan 771 58 38ms 23 days ago 532nd rucin93 🇵🇱 770 102 119ms 27 days ago 532nd madex 🇩🇪 770 102 107ms 23 days ago 534th albanian-laundromat 770 103 31ms 24 Nov 2025 535th albanian-laundromat 769 74 3ms 23 Nov 2025 536th CaedenHarper 🇨🇦 768 96 153ms 26 days ago 537th CaedenHarper 🇨🇦 767 64 96ms 25 days ago 538th emgordon154 767 135 1,703ms 17 hours ago 539th HumanoidCPU 766 62 355ms 26 days ago 539th Yewzir 🇧🇪 766 62 374ms 25 days ago 541st MeWhenI 🇻🇦 766 77 4ms 24 Nov 2025 542nd albanian-laundromat 764 92 349ms 23 Nov 2025 543rd AlephSquirrel 763 38 41ms 24 days ago 544th madex 🇩🇪 762 80 2ms 23 days ago 545th dokutan 762 82 38ms 26 days ago 546th blaztoma 🇱🇹 761 63 248ms 23 days ago 547th MeWhenI 🇻🇦 761 136 1,783ms 23 Nov 2025 548th albanian-laundromat 758 64 2ms 23 Nov 2025 549th albanian-laundromat 757 89 10ms 24 days ago 550th dokutan 754 61 783ms 26 days ago 551st dokutan 754 62 5ms 11 days ago 552nd H3XDaemon 753 81 2ms 5 days ago 553rd MeWhenI 🇻🇦 753 97 63ms 24 Nov 2025 554th DialFrost 🇸🇬 752 136 436ms 21 days ago 555th bitsandbeyond 🇳🇱 751 83 77ms 31 Oct 2025 556th CaedenHarper 🇨🇦 750 58 125ms 25 days ago 557th dokutan 750 59 9ms 27 days ago 558th duckyluuk 🇳🇱 750 95 8ms 30 Oct 2025 559th bitsandbeyond 🇳🇱 748 90 10ms 31 Oct 2025 560th HumanoidCPU 747 102 8ms 25 days ago First Prev 481–560 of 1,113 Next Last