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 481st luuumine 🇫🇷 806 58 5ms 23 days ago 482nd emgordon154 805 54 128ms 5 days ago 483rd dokutan 805 61 92ms 27 days ago 484th CaedenHarper 🇨🇦 805 74 101ms 26 days ago 485th Maznek 804 55 9ms 16 days ago 486th MeWhenI 🇻🇦 802 53 3ms 27 days ago 487th CLOStrophobic 🇮🇹 802 95 8ms 22 days ago 488th albanian-laundromat 802 103 262ms 23 Nov 2025 489th MeWhenI 🇻🇦 801 63 5ms 24 Nov 2025 490th albanian-laundromat 801 78 41ms 24 Nov 2025 491st dokutan 801 92 378ms 28 Nov 2025 492nd snoozingnewt 🇨🇦 800 60 726ms 25 days ago 493rd DialFrost 🇸🇬 798 66 125ms 23 days ago 494th JOrE20 🇺🇸 795 62 11ms 25 Nov 2025 494th HumanoidCPU 795 62 11ms 27 days ago 494th Yewzir 🇧🇪 795 62 12ms 26 days ago 494th plcc0 795 62 12ms 25 days ago 494th anter69 🇭🇺 795 62 13ms 25 days ago 494th inventshah 795 62 10ms 18 days ago 494th SB-945 795 62 12ms 7 days ago 501st albanian-laundromat 795 77 2,962ms 23 Nov 2025 502nd Shanethegamer 🇺🇸 794 92 70ms 3 Nov 2025 502nd blaztoma 🇱🇹 794 92 64ms 24 days ago 504th neosimsim 793 96 8ms 23 Nov 2025 505th albanian-laundromat 792 60 374ms 23 Nov 2025 506th Shanethegamer 🇺🇸 792 62 94ms 3 Nov 2025 507th bitsandbeyond 🇳🇱 792 74 1,242ms 31 Oct 2025 508th Shanethegamer 🇺🇸 791 55 133ms 4 Nov 2025 509th MeWhenI 🇻🇦 791 79 39ms 23 Nov 2025 510th bitsandbeyond 🇳🇱 790 72 3ms 2 Nov 2025 511th dokutan 787 75 4ms 24 days ago 512th edsrzf 🇳🇿 786 93 64ms 25 days ago 513th Shanethegamer 🇺🇸 786 100 112ms 3 Nov 2025 514th Natanaelel 🇸🇪 785 55 120ms 4 Nov 2025 515th CaedenHarper 🇨🇦 785 57 36ms 27 days ago 516th ovs-code 🇩🇪 785 77 6ms 27 days ago 517th bitsandbeyond 🇳🇱 785 87 40ms 31 Oct 2025 517th blaztoma 🇱🇹 785 87 42ms 24 days ago 519th emgordon154 784 78 2,848ms 5 days ago 520th MeWhenI 🇻🇦 783 62 1ms 23 Nov 2025 521st emgordon154 783 86 12ms 5 days ago 522nd Kacarott 🇦🇺 781 198 3ms 21 days ago 523rd MeWhenI 🇻🇦 779 63 96ms 23 Nov 2025 524th emgordon154 779 106 265ms 25 Nov 2025 525th bitsandbeyond 🇳🇱 778 70 119ms 2 Nov 2025 526th albanian-laundromat 778 90 3ms 12 days ago 527th vhoulbreque 🇫🇷 778 101 110ms 24 days ago 528th MeWhenI 🇻🇦 776 56 127ms 23 Nov 2025 528th dokutan 776 56 130ms 25 days ago 530th albanian-laundromat 776 88 41ms 24 Nov 2025 531st Shanethegamer 🇺🇸 774 62 235ms 4 Nov 2025 531st albanian-laundromat 774 62 701ms 23 Nov 2025 533rd snoozingnewt 🇨🇦 774 87 10ms 25 days ago 534th DialFrost 🇸🇬 773 65 582ms 24 days ago 535th dokutan 773 77 107ms 20 days ago 536th dokutan 771 58 38ms 25 days ago 537th rucin93 🇵🇱 770 102 119ms 28 Nov 2025 537th madex 🇩🇪 770 102 107ms 24 days ago 539th albanian-laundromat 770 103 31ms 24 Nov 2025 540th albanian-laundromat 769 74 3ms 23 Nov 2025 541st CaedenHarper 🇨🇦 768 96 153ms 27 days ago 542nd CaedenHarper 🇨🇦 767 64 96ms 26 days ago 543rd emgordon154 767 135 1,703ms 44 hours ago 544th HumanoidCPU 766 62 355ms 27 days ago 544th Yewzir 🇧🇪 766 62 374ms 26 days ago 546th MeWhenI 🇻🇦 766 77 4ms 24 Nov 2025 547th albanian-laundromat 764 92 349ms 23 Nov 2025 548th AlephSquirrel 763 38 41ms 25 days ago 549th madex 🇩🇪 763 80 2ms 24 days ago 550th blaztoma 🇱🇹 762 63 248ms 24 days ago 551st dokutan 762 82 38ms 27 days ago 552nd MeWhenI 🇻🇦 761 136 1,783ms 23 Nov 2025 553rd albanian-laundromat 758 64 2ms 23 Nov 2025 554th albanian-laundromat 757 89 10ms 25 days ago 555th dokutan 754 61 783ms 27 days ago 556th dokutan 754 62 5ms 12 days ago 557th H3XDaemon 754 81 2ms 6 days ago 558th MeWhenI 🇻🇦 753 97 63ms 24 Nov 2025 559th DialFrost 🇸🇬 752 136 436ms 22 days ago 560th bitsandbeyond 🇳🇱 751 83 77ms 31 Oct 2025 First Prev 481–560 of 1,118 Next Last