The Tower of Hanoi hole will go live momentarily. Why not try and solve it ahead of time?
Emirp Numbers (Long) in C# in bytes. 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 Bytes Time Submitted 1st JayXon 🇺🇸 1,000 109 465ms 6 Nov 2022 2nd primo-ppcg 🇹🇭 991 110 361ms 10 Apr 2025 3rd nwellnhof 🇩🇪 973 112 361ms 14 Mar 2023 3rd tomtheisen 🇺🇸 973 112 379ms 10 Apr 2025 5th DialFrost 🇸🇬 965 113 343ms 16 Aug 2025 6th namelessiw 940 116 394ms 14 Aug 2025 7th Yax42 🇫🇷 932 117 396ms 15 Aug 2025 8th MeWhenI 🇻🇦 916 119 342ms 19 Jun 2025 9th stefangimmillaro 893 122 361ms 20 Jun 2025 10th janbehrens 🇩🇪 886 123 349ms 17 Apr 2025 11th AdrienHache 🇫🇷 838 130 415ms 15 Aug 2025 12th sean-niemann 🇺🇸 832 131 461ms 25 Sep 2025 13th Steffan153 🇫🇮 826 132 476ms 8 Nov 2022 14th Yewzir 🇧🇪 790 138 340ms 11 Feb 2024 15th kmathis22 722 151 343ms 26 Sep 2025 16th Shanethegamer 🇺🇸 717 152 443ms 20 Apr 2023 17th SmartK8 🇨🇿 699 156 690ms 31 Oct 2022 17th annaproxy 699 156 453ms 24 Oct 2023 19th dokutan 694 157 340ms 12 days ago 20th tomh1012 690 158 369ms 8 Nov 2022 20th bac0id 690 158 362ms 29 Jun 2024 22nd CatsAreFluffy 686 159 477ms 28 Nov 2022 23rd arctouch-cristiannevianna 681 160 488ms 25 May 2023 24th ChrisTheisen 623 175 378ms 19 Dec 2022 24th msbranicky 623 175 418ms 27 Aug 2023 26th rifatx 616 177 442ms 10 Jul 2024 27th snoozingnewt 🇺🇸 602 181 384ms 9 Oct 2025 28th najs91 596 183 417ms 31 Oct 2024 29th CaedenHarper 🇨🇦 592 184 510ms 19 Oct 2025 30th postie77 583 187 354ms 30 May 2023 31st KatieLG 🇬🇧 580 188 392ms 13 Oct 2024 32nd ElysiaVesper 540 202 353ms 19 Nov 2023 33rd hamhub7 509 214 389ms 30 Dec 2022 33rd Adix-null 🇱🇹 509 214 354ms 29 Jul 2023 35th Mikey-Beep 🇬🇧 482 226 436ms 3 Sep 2024 36th kevinnaviapaiva 359 304 344ms 22 Feb 2025 37th eldritchconundrum 124 882 393ms 31 Oct 2022 38th aliakseikalosha 111 979 484ms 31 Oct 2022 39th HumanoidCPU 93 1,174 316ms 24 Aug 2024 40th retrohun 77 1,412 386ms 27 Dec 2022 40th Mabeloid 🇳🇴 77 1,412 314ms 17 Sep 2024 42nd KatieLG-Transpiler 🇬🇧 77 1,416 311ms 29 Oct 2022 1–42 of 42