The Calendar hole will go live in approximately 9 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 albanian-laundromat 801 78 41ms 24 Nov 2025 482nd dokutan 801 92 378ms 24 days ago 483rd albanian-laundromat 801 103 262ms 23 Nov 2025 484th snoozingnewt 🇨🇦 800 60 726ms 21 days ago 485th DialFrost 🇸🇬 798 66 125ms 19 days ago 486th JOrE20 🇺🇸 795 62 11ms 27 days ago 486th HumanoidCPU 795 62 11ms 23 days ago 486th Yewzir 🇧🇪 795 62 12ms 22 days ago 486th plcc0 795 62 12ms 22 days ago 486th anter69 🇭🇺 795 62 13ms 21 days ago 486th inventshah 795 62 10ms 14 days ago 486th SB-945 795 62 12ms 3 days ago 493rd albanian-laundromat 794 77 2,962ms 23 Nov 2025 494th Shanethegamer 🇺🇸 794 92 73ms 3 Nov 2025 494th blaztoma 🇱🇹 794 92 64ms 20 days ago 496th neosimsim 793 96 8ms 23 Nov 2025 497th Shanethegamer 🇺🇸 792 62 94ms 3 Nov 2025 498th bitsandbeyond 🇳🇱 792 74 1,242ms 31 Oct 2025 499th Shanethegamer 🇺🇸 791 55 133ms 4 Nov 2025 500th albanian-laundromat 791 60 374ms 23 Nov 2025 501st MeWhenI 🇻🇦 791 79 39ms 23 Nov 2025 502nd bitsandbeyond 🇳🇱 790 72 3ms 2 Nov 2025 503rd dokutan 787 75 4ms 20 days ago 504th edsrzf 🇳🇿 786 93 66ms 21 days ago 505th Shanethegamer 🇺🇸 786 100 112ms 3 Nov 2025 506th Natanaelel 🇸🇪 785 55 127ms 4 Nov 2025 507th CaedenHarper 🇨🇦 785 57 36ms 23 days ago 508th ovs-code 🇩🇪 785 77 6ms 23 days ago 509th bitsandbeyond 🇳🇱 785 87 40ms 31 Oct 2025 509th blaztoma 🇱🇹 785 87 42ms 21 days ago 511th emgordon154 784 78 4,266ms 44 hours ago 512th MeWhenI 🇻🇦 783 62 1ms 23 Nov 2025 513th emgordon154 783 86 17ms 44 hours ago 514th MeWhenI 🇻🇦 779 63 96ms 23 Nov 2025 515th bitsandbeyond 🇳🇱 778 70 119ms 2 Nov 2025 516th albanian-laundromat 778 90 4ms 8 days ago 517th vhoulbreque 🇫🇷 778 101 110ms 20 days ago 518th emgordon154 778 106 265ms 26 days ago 519th MeWhenI 🇻🇦 776 56 127ms 23 Nov 2025 519th dokutan 776 56 130ms 21 days ago 521st albanian-laundromat 776 88 41ms 24 Nov 2025 522nd Shanethegamer 🇺🇸 774 62 241ms 4 Nov 2025 522nd albanian-laundromat 774 62 701ms 23 Nov 2025 524th snoozingnewt 🇨🇦 774 87 10ms 21 days ago 525th DialFrost 🇸🇬 773 65 582ms 20 days ago 526th dokutan 773 77 107ms 16 days ago 527th dokutan 771 58 43ms 21 days ago 528th rucin93 🇵🇱 770 102 119ms 24 days ago 528th madex 🇩🇪 770 102 107ms 20 days ago 530th albanian-laundromat 770 103 31ms 24 Nov 2025 531st albanian-laundromat 769 74 3ms 23 Nov 2025 532nd CaedenHarper 🇨🇦 768 96 153ms 23 days ago 533rd CaedenHarper 🇨🇦 767 64 96ms 22 days ago 534th HumanoidCPU 766 62 355ms 23 days ago 534th Yewzir 🇧🇪 766 62 374ms 22 days ago 536th MeWhenI 🇻🇦 766 77 4ms 24 Nov 2025 537th albanian-laundromat 764 92 349ms 23 Nov 2025 538th AlephSquirrel 763 38 63ms 21 days ago 539th madex 🇩🇪 762 80 2ms 20 days ago 540th dokutan 762 82 38ms 23 days ago 541st blaztoma 🇱🇹 761 63 256ms 21 days ago 542nd MeWhenI 🇻🇦 761 136 1,783ms 23 Nov 2025 542nd emgordon154 761 136 1,699ms 24 Nov 2025 544th albanian-laundromat 758 64 2ms 23 Nov 2025 545th albanian-laundromat 757 89 10ms 21 days ago 546th dokutan 754 61 783ms 23 days ago 547th dokutan 754 62 6ms 8 days ago 548th H3XDaemon 753 81 2ms 2 days ago 549th MeWhenI 🇻🇦 753 97 70ms 24 Nov 2025 550th DialFrost 🇸🇬 752 136 436ms 19 days ago 551st bitsandbeyond 🇳🇱 751 83 77ms 31 Oct 2025 552nd CaedenHarper 🇨🇦 750 58 125ms 22 days ago 553rd duckyluuk 🇳🇱 750 95 8ms 30 Oct 2025 554th dokutan 749 59 9ms 24 days ago 555th bitsandbeyond 🇳🇱 748 90 10ms 31 Oct 2025 556th HumanoidCPU 747 102 8ms 22 days ago 556th bitsandbeyond 🇳🇱 747 102 9ms 22 days ago 558th MeWhenI 🇻🇦 745 57 311ms 24 Nov 2025 558th CaedenHarper 🇨🇦 745 57 275ms 22 days ago 558th bitsandbeyond 🇳🇱 745 57 203ms 22 days ago First Prev 481–560 of 1,104 Next Last