The Tower of Hanoi hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Number Spiral 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 900th Mabeloid 🇳🇴 356 361 263ms 4 Oct 2024 902nd msbranicky 355 177 16ms 12 Jul 2023 903rd kawamuu5 355 286 364ms 28 Jun 2023 904th msbranicky 355 315 116ms 30 Aug 2023 905th pascscha 353 178 15ms 28 Mar 2022 906th DaCuteRaccoon 353 314 61ms 15 May 2022 906th retrohun 353 314 58ms 28 Dec 2022 906th HumanoidCPU 353 314 62ms 21 May 2024 906th Shanethegamer 🇺🇸 353 314 65ms 15 Aug 2024 906th Mabeloid 🇳🇴 353 314 65ms 4 Oct 2024 906th dokutan 353 314 63ms 10 Feb 2025 906th CaedenHarper 🇨🇦 353 314 63ms 16 Aug 2025 913th Shanethegamer 🇺🇸 353 330 324ms 25 Sep 2025 913th HumanoidCPU 353 330 336ms 20 days ago 915th JRaspass 🇬🇧 352 308 1ms 25 Jan 2022 915th MeWhenI 🇻🇦 352 308 1ms 25 Jan 2022 915th adriweb 🇫🇷 352 308 2ms 5 Sep 2023 915th Shanethegamer 🇺🇸 352 308 1ms 15 Aug 2024 915th HumanoidCPU 352 308 2ms 4 Mar 2025 915th CaedenHarper 🇨🇦 352 308 2ms 16 Aug 2025 921st kkoenig 352 365 257ms 3 Jan 2024 922nd wobblybits 351 179 10ms 23 Aug 2025 923rd bac0id 351 290 335ms 22 Sep 2023 924th StarmaQ 350 310 3ms 11 Feb 2022 924th Mabeloid 🇳🇴 350 310 2ms 4 Oct 2024 926th msbranicky 350 317 60ms 13 Sep 2023 927th Msleizak 🇫🇷 350 379 38ms 3 Nov 2022 928th jeff-at-tamer-dot-codes 🇺🇸 348 181 9ms 10 Oct 2023 928th jatloe 348 181 9ms 28 Jan 2024 928th Jacob385 348 181 9ms 22 Apr 2024 928th cuboids 348 181 9ms 11 Jul 2024 928th AstroOrbis 348 181 9ms 3 days ago 933rd KatieLG 🇬🇧 348 318 63ms 27 Jan 2022 934th KatieLG-Transpiler 🇬🇧 347 307 1,264ms 24 Jun 2022 934th msbranicky 347 307 1,245ms 23 Sep 2023 934th HumanoidCPU 347 307 1,203ms 28 Apr 2024 934th dokutan 347 307 1,213ms 21 Aug 2024 934th JDiLenarda 🇫🇷 347 307 1,314ms 27 Sep 2024 934th CaedenHarper 🇨🇦 347 307 1,226ms 25 Jan 2025 940th trist224 🇫🇷 346 182 15ms 23 Nov 2022 941st KatieLG 🇬🇧 346 308 1,208ms 30 Jan 2022 942nd za3k 344 183 10ms 16 Oct 2022 943rd retrohun 344 315 2ms 28 Dec 2022 944th MeWhenI 🇻🇦 344 320 108ms 25 Jan 2022 944th JGDoerrer 344 320 107ms 29 Jan 2022 944th retrohun 344 320 110ms 28 Dec 2022 944th HumanoidCPU 344 320 113ms 22 Apr 2024 944th Shanethegamer 🇺🇸 344 320 109ms 15 Aug 2024 944th Mabeloid 🇳🇴 344 320 110ms 4 Oct 2024 944th CatsAreFluffy 344 320 112ms 15 Nov 2024 951st aubergine-sauce 343 261 2ms 31 May 2023 952nd msbranicky 342 177 507ms 17 Jan 2024 953rd Hortaros 342 184 9ms 15 Jun 2023 954th MeWhenI 🇻🇦 342 200 133ms 28 Oct 2024 955th KatieLG-Transpiler 🇬🇧 342 317 1ms 23 Jun 2022 955th KatieLG 🇬🇧 342 317 1ms 8 Jan 2025 957th KatieLG-Transpiler 🇬🇧 341 322 2ms 24 Jun 2022 957th mousetail 🇳🇱 341 322 4ms 20 Dec 2022 957th retrohun 341 322 2ms 26 Dec 2022 957th adamnielson42 🇺🇸 341 322 2ms 2 Oct 2023 961st KatieLG 🇬🇧 341 331 430ms 28 Feb 2022 961st HumanoidCPU 341 331 439ms 27 Jun 2024 961st Shanethegamer 🇺🇸 341 331 468ms 15 Aug 2024 964th sbercx 340 324 105ms 1 Aug 2023 965th CaedenHarper 🇨🇦 340 332 444ms 24 Jan 2025 966th CheeseCake628 🇳🇴 338 186 9ms 16 Nov 2024 967th bac0id 337 345 309ms 26 Sep 2023 968th mossprescott 336 187 9ms 9 Jan 2023 968th AlexanderFair 336 187 10ms 26 Jul 2023 970th Jacob385 335 181 404ms 22 Apr 2024 971st jtaxen 335 188 16ms 6 Jun 2024 972nd KatieLG 🇬🇧 335 329 109ms 29 Sep 2024 973rd KatieLG 🇬🇧 335 347 330ms 24 Sep 2025 974th a6166231 🇨🇳 334 243 8ms 24 Jun 2025 975th Mabeloid 🇳🇴 334 338 141ms 4 Oct 2024 First Prev 901–975 of 1,692 Next Last