The Tower of Hanoi hole will go live in approximately 3 hours. Why not try and solve it ahead of time?
Rijndael S-box 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 601st dokutan 276 572 2,820ms 24 Oct 2024 602nd Jacob385 275 538 305ms 4 Aug 2024 603rd alphafalfa 275 572 16ms 1 Aug 2025 604th Mabeloid 🇳🇴 272 232 2ms 15 Oct 2025 605th aksyristos 272 321 13ms 11 Sep 2023 606th Yewzir 🇧🇪 272 593 1,566ms 16 days ago 607th dokutan 271 495 4ms 10 Apr 2025 608th msbranicky 269 626 3ms 12 Sep 2023 609th plcc0 268 326 10ms 10 Apr 2025 610th bac0id 267 236 2ms 8 Jan 2025 611th dokutan 267 305 47ms 13 Mar 2025 612th msbranicky 267 590 2,913ms 11 Jan 2025 613th trinityy-7 266 237 2ms 10 Oct 2023 614th YAJUE114514 265 329 440ms 1 Jul 2025 615th JunkIce 265 338 622ms 13 Feb 2025 616th KatieLG 🇬🇧 265 769 4ms 11 Aug 2024 616th Shanethegamer 🇺🇸 265 769 4ms 11 Aug 2024 616th HumanoidCPU 265 769 5ms 13 Aug 2024 616th KatieLG-Transpiler 🇬🇧 265 769 5ms 16 Aug 2024 616th Mabeloid 🇳🇴 265 769 8ms 21 Sep 2024 616th CaedenHarper 🇨🇦 265 769 4ms 22 Jan 2025 616th snoozingnewt 🇺🇸 265 769 4ms 28 Sep 2025 623rd tomtheisen 🇺🇸 264 521 367ms 13 Feb 2025 624th peachey2k2 262 240 2ms 8 days ago 625th msbranicky 262 638 135ms 1 Sep 2023 626th c0d3-4-F00d 🇩🇪 261 241 2ms 4 Dec 2023 627th helbling 🇨🇭 260 242 2ms 25 Jul 2024 628th Shanethegamer 🇺🇸 259 781 22ms 1 Sep 2023 628th KatieLG 🇬🇧 259 781 22ms 2 Sep 2023 628th KatieLG-Transpiler 🇬🇧 259 781 21ms 2 Sep 2023 628th snoozingnewt 🇺🇸 259 781 22ms 5 Sep 2023 628th vgamula 🇺🇦 259 781 22ms 6 Sep 2023 628th HumanoidCPU 259 781 22ms 16 Apr 2024 628th Mabeloid 🇳🇴 259 781 21ms 21 Sep 2024 628th dokutan 259 781 23ms 18 Oct 2024 628th CaedenHarper 🇨🇦 259 781 25ms 22 Jan 2025 637th ndren 259 782 28ms 20 Jan 2025 638th Martymoose98 258 244 2ms 30 May 2025 639th JunkIce 258 338 11ms 13 Feb 2025 640th blaztoma 🇱🇹 255 540 374ms 6 Sep 2025 641st 1231234md5 🇨🇳 254 344 17ms 12 Dec 2023 642nd Shanethegamer 🇺🇸 253 782 62ms 1 Sep 2023 642nd HumanoidCPU 253 782 61ms 27 May 2024 642nd dokutan 253 782 64ms 30 Jul 2024 642nd Mabeloid 🇳🇴 253 782 63ms 21 Sep 2024 642nd CaedenHarper 🇨🇦 253 782 64ms 22 Jan 2025 647th rak1507 🇬🇧 252 347 46ms 1 Sep 2023 648th dokutan 251 588 329ms 24 Sep 2025 649th KatieLG 🇬🇧 251 712 3ms 22 Aug 2024 650th KatieLG 🇬🇧 250 792 60ms 2 Sep 2023 651st dokutan 249 422 71ms 22 Jun 2025 652nd gigaprofisi 🇺🇸 248 254 3ms 16 Jul 2025 653rd KatieLG 🇬🇧 246 430 9ms 5 Oct 2025 654th kallmi28 🇨🇿 244 258 2ms 8 Nov 2023 655th dokutan 244 791 141ms 18 Oct 2024 656th KatieLG-Transpiler 🇬🇧 244 809 620ms 2 Sep 2023 657th MeWhenI 🇻🇦 243 779 9ms 1 Sep 2023 657th Shanethegamer 🇺🇸 243 779 9ms 1 Sep 2023 657th HumanoidCPU 243 779 10ms 16 Apr 2024 657th Mabeloid 🇳🇴 243 779 14ms 21 Sep 2024 657th dokutan 243 779 10ms 18 Oct 2024 657th CaedenHarper 🇨🇦 243 779 10ms 22 Jan 2025 663rd Shanethegamer 🇺🇸 243 795 111ms 1 Sep 2023 663rd KatieLG 🇬🇧 243 795 129ms 2 Sep 2023 663rd KatieLG-Transpiler 🇬🇧 243 795 122ms 2 Sep 2023 663rd msbranicky 243 795 107ms 11 Sep 2023 663rd HumanoidCPU 243 795 146ms 16 Apr 2024 663rd Mabeloid 🇳🇴 243 795 110ms 21 Sep 2024 663rd CaedenHarper 🇨🇦 243 795 163ms 21 Jan 2025 670th yzhs 🇩🇪 242 260 2ms 24 Mar 2024 671st msbranicky 242 596 1ms 10 Oct 2023 672nd msbranicky 242 637 6ms 1 Sep 2023 673rd snoozingnewt 🇺🇸 242 798 139ms 4 Sep 2023 674th LostSyntax21 🇬🇧 241 363 33ms 23 Oct 2025 675th MeWhenI 🇻🇦 241 800 141ms 1 Sep 2023 First Prev 601–675 of 1,323 Next Last