The Tower of Hanoi hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Kaprekar Numbers 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 899th Shanethegamer 🇺🇸 0 448 3ms 18 Sep 2025 899th HumanoidCPU 0 448 2ms 6 Oct 2025 903rd Shanethegamer 🇺🇸 0 449 171ms 16 Apr 2025 903rd Shanethegamer 🇺🇸 0 449 14ms 17 Apr 2025 903rd Shanethegamer 🇺🇸 0 449 84ms 17 Apr 2025 903rd Shanethegamer 🇺🇸 0 449 2ms 1 May 2025 903rd Shanethegamer 🇺🇸 0 449 159ms 2 Jul 2025 903rd HumanoidCPU 0 449 163ms 18 Aug 2025 903rd HumanoidCPU 0 449 15ms 18 Aug 2025 903rd HumanoidCPU 0 449 96ms 18 Aug 2025 903rd HumanoidCPU 0 449 2ms 18 Aug 2025 903rd HumanoidCPU 0 449 169ms 18 Aug 2025 913th KatieLG 🇬🇧 0 450 1ms 7 days ago 914th Shanethegamer 🇺🇸 0 452 1,121ms 16 Apr 2025 914th Shanethegamer 🇺🇸 0 452 1ms 17 Apr 2025 914th HumanoidCPU 0 452 2ms 18 Aug 2025 914th HumanoidCPU 0 452 1,089ms 18 Aug 2025 918th Shanethegamer 🇺🇸 0 454 7ms 17 Apr 2025 918th HumanoidCPU 0 454 7ms 18 Aug 2025 920th Shanethegamer 🇺🇸 0 457 63ms 16 Apr 2025 920th HumanoidCPU 0 457 62ms 18 Aug 2025 922nd Shanethegamer 🇺🇸 0 466 65ms 3 Jul 2025 923rd HumanoidCPU 0 468 88ms 18 Aug 2025 924th Shanethegamer 🇺🇸 0 487 272ms 17 Apr 2025 924th HumanoidCPU 0 487 272ms 18 Aug 2025 926th Shanethegamer 🇺🇸 0 493 291ms 11 May 2025 927th KatieLG 🇬🇧 0 508 48ms 20 Apr 2025 928th KatieLG 🇬🇧 0 509 357ms 20 Apr 2025 929th KatieLG 🇬🇧 0 510 2ms 9 Feb 2025 929th HumanoidCPU 0 510 2ms 18 Aug 2025 929th Shanethegamer 🇺🇸 0 510 2ms 23 Sep 2025 932nd KatieLG 🇬🇧 0 513 2ms 20 Apr 2025 932nd HumanoidCPU 0 513 2ms 18 Aug 2025 934th KatieLG 🇬🇧 0 515 2ms 20 Apr 2025 934th KatieLG 🇬🇧 0 515 1,028ms 20 Apr 2025 934th KatieLG 🇬🇧 0 515 2ms 7 days ago 937th KatieLG 🇬🇧 0 516 16ms 20 Apr 2025 937th KatieLG 🇬🇧 0 516 89ms 20 Apr 2025 937th KatieLG 🇬🇧 0 516 8ms 20 Apr 2025 940th KatieLG 🇬🇧 0 517 171ms 23 Apr 2025 941st KatieLG 🇬🇧 0 519 1ms 20 Apr 2025 942nd KatieLG 🇬🇧 0 520 81ms 23 Apr 2025 943rd KatieLG 🇬🇧 0 521 8ms 20 Apr 2025 944th Shanethegamer 🇺🇸 0 527 3ms 28 Jul 2025 944th HumanoidCPU 0 527 4ms 18 Aug 2025 946th KatieLG 🇬🇧 0 529 139ms 24 Oct 2025 947th Shanethegamer 🇺🇸 0 535 4ms 20 Apr 2025 947th HumanoidCPU 0 535 4ms 18 Aug 2025 949th KatieLG 🇬🇧 0 549 4ms 7 days ago 950th KatieLG 🇬🇧 0 554 73ms 20 Apr 2025 951st KatieLG 🇬🇧 0 556 270ms 20 Apr 2025 952nd HumanoidCPU 0 560 283ms 18 Aug 2025 953rd KatieLG 🇬🇧 0 563 65ms 20 Apr 2025 954th KatieLG 🇬🇧 0 565 274ms 20 Apr 2025 955th HumanoidCPU 0 575 13ms 17 days ago 956th KatieLG 🇬🇧 0 581 5ms 20 Apr 2025 957th HumanoidCPU 0 585 6ms 12 days ago 958th KatieLG 🇬🇧 0 644 6ms 20 Apr 2025 958th Shanethegamer 🇺🇸 0 644 6ms 23 Apr 2025 958th HumanoidCPU 0 644 6ms 19 days ago 961st KatieLG 🇬🇧 0 711 15ms 20 Apr 2025 961st Shanethegamer 🇺🇸 0 711 1ms 23 Apr 2025 963rd KatieLG 🇬🇧 0 779 1ms 20 Apr 2025 964th KatieLG 🇬🇧 0 915 8ms 20 Apr 2025 964th KatieLG 🇬🇧 0 915 3ms 20 Apr 2025 966th Shanethegamer 🇺🇸 0 1,322 7ms 23 Apr 2025 967th KatieLG 🇬🇧 0 1,390 7ms 20 Apr 2025 First Prev 901–967 of 967
