The Calendar hole will go live in approximately 10 days. Why not try and solve it ahead of time?
Tower of Hanoi in all languages 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 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 Bytes Time Submitted 160th bitsandbeyond 🇳🇱 912 67 4,371ms 2 Nov 2025 162nd stefangimmillaro 911 55 82ms 31 Oct 2025 163rd Shanethegamer 🇺🇸 911 66 1,247ms 3 Nov 2025 163rd edsrzf 🇳🇿 911 66 1,434ms 20 days ago 165th bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 165th namelessiw 911 70 417ms 2 Nov 2025 167th stefangimmillaro 911 75 41ms 31 Oct 2025 168th Mukundan314 910 67 2ms 23 Nov 2025 168th luuumine 🇫🇷 910 67 2ms 18 days ago 168th Alex-x90 🇺🇸 910 67 2ms 17 days ago 171st sean-niemann 🇺🇸 910 81 388ms 31 Oct 2025 171st KasperKivimaeki 🇫🇮 910 81 367ms 31 Oct 2025 171st ovs-code 🇩🇪 910 81 387ms 31 Oct 2025 171st rucin93 🇵🇱 910 81 383ms 31 Oct 2025 171st edsrzf 🇳🇿 910 81 357ms 20 days ago 171st DialFrost 🇸🇬 910 81 363ms 19 days ago 171st JayXon 🇺🇸 910 81 467ms 10 hours ago 178th IanUtley 909 70 10ms 7 Nov 2025 178th annaproxy 909 70 10ms 19 days ago 180th kg583 🇺🇸 908 65 5ms 30 Oct 2025 180th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 182nd GolfingSuccess 🇬🇷 908 85 76ms 30 Oct 2025 182nd rucin93 🇵🇱 908 85 69ms 30 Oct 2025 182nd KasperKivimaeki 🇫🇮 908 85 80ms 31 Oct 2025 182nd bitsandbeyond 🇳🇱 908 85 60ms 1 Nov 2025 182nd ovs-code 🇩🇪 908 85 71ms 3 Nov 2025 182nd pardouin 🇫🇷 908 85 78ms 22 days ago 182nd m-tkach 🇺🇦 908 85 76ms 20 days ago 182nd DialFrost 🇸🇬 908 85 62ms 19 days ago 182nd AdrienHache 🇫🇷 908 85 71ms 19 days ago 182nd xsot 🇸🇬 908 85 64ms 19 days ago 192nd sean-niemann 🇺🇸 906 69 40ms 19 days ago 193rd ovs-code 🇩🇪 906 74 120ms 23 days ago 194th pardouin 🇫🇷 906 91 251ms 21 days ago 195th edsrzf 🇳🇿 905 70 4ms 31 Oct 2025 195th MeWhenI 🇻🇦 905 70 4ms 27 days ago 197th luuumine 🇫🇷 904 72 117ms 18 days ago 197th emgordon154 904 72 140ms 17 hours ago 199th emgordon154 903 67 5ms 27 days ago 200th targrik 902 56 8ms 30 Oct 2025 201st bitsandbeyond 🇳🇱 902 66 108ms 2 Nov 2025 201st stefangimmillaro 902 66 124ms 4 Nov 2025 203rd GrayJoKing 🇦🇺 902 79 9ms 16 days ago 204th emgordon154 902 88 103ms 17 days ago 205th CaedenHarper 🇨🇦 901 78 416ms 22 days ago 205th m-tkach 🇺🇦 901 78 657ms 20 days ago 207th MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 208th jkelly467 899 68 3,920ms 19 days ago 209th sean-niemann 🇺🇸 899 74 21ms 18 hours ago 210th sean-niemann 🇺🇸 898 67 1,225ms 19 days ago 211th kg583 🇺🇸 898 75 10ms 30 Oct 2025 212th edsrzf 🇳🇿 898 78 3ms 20 days ago 213th luuumine 🇫🇷 898 86 71ms 10 days ago 214th saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 214th MeWhenI 🇻🇦 897 51 542ms 22 days ago 216th CaedenHarper 🇨🇦 897 68 2ms 22 days ago 216th m-tkach 🇺🇦 897 68 2ms 20 days ago 218th AlephSquirrel 896 56 11ms 30 Oct 2025 218th hallvabo 🇳🇴 896 56 11ms 30 Oct 2025 218th bizy-coder 896 56 13ms 25 days ago 218th ndren 896 56 13ms 21 days ago 218th zacjl 896 56 12ms 21 days ago 218th klixel 🇨🇦 896 56 11ms 14 days ago 224th edsrzf 🇳🇿 896 59 2ms 31 Oct 2025 224th CaedenHarper 🇨🇦 896 59 2ms 21 days ago 224th GrayJoKing 🇦🇺 896 59 2ms 17 days ago 227th GolfingSuccess 🇬🇷 896 92 275ms 30 Oct 2025 227th stefangimmillaro 896 92 264ms 31 Oct 2025 227th edsrzf 🇳🇿 896 92 264ms 31 Oct 2025 227th KasperKivimaeki 🇫🇮 896 92 280ms 31 Oct 2025 231st kg583 🇺🇸 895 55 480ms 30 Oct 2025 231st bitsandbeyond 🇳🇱 895 55 512ms 1 Nov 2025 231st Shanethegamer 🇺🇸 895 55 525ms 3 Nov 2025 231st m-tkach 🇺🇦 895 55 475ms 27 days ago 231st ovs-code 🇩🇪 895 55 415ms 23 days ago 231st emgordon154 895 55 502ms 35 hours ago 237th kg583 🇺🇸 895 78 58ms 30 Oct 2025 237th edsrzf 🇳🇿 895 78 41ms 31 Oct 2025 239th edsrzf 🇳🇿 895 79 78ms 20 days ago 240th m-tkach 🇺🇦 895 95 2ms 20 days ago First Prev 161–240 of 1,110 Next Last