The Calendar hole will go live in approximately 7 hours. Why not try and solve it ahead of time?
Tower of Hanoi 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 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 Chars Time Submitted 160th ovs-code 🇩🇪 913 80 69ms 29 Nov 2025 162nd bitsandbeyond 🇳🇱 912 70 392ms 1 Nov 2025 162nd namelessiw 912 70 407ms 2 Nov 2025 164th Mukundan314 911 67 2ms 23 Nov 2025 164th luuumine 🇫🇷 911 67 2ms 3 Dec 2025 164th Alex-x90 🇺🇸 911 67 2ms 27 days ago 167th stefangimmillaro 911 75 41ms 31 Oct 2025 168th edsrzf 🇳🇿 910 65 5ms 13 days ago 169th kg583 🇺🇸 910 74 11ms 30 Oct 2025 170th sean-niemann 🇺🇸 910 81 388ms 31 Oct 2025 170th KasperKivimaeki 🇫🇮 910 81 367ms 31 Oct 2025 170th ovs-code 🇩🇪 910 81 387ms 31 Oct 2025 170th rucin93 🇵🇱 910 81 383ms 31 Oct 2025 170th edsrzf 🇳🇿 910 81 357ms 1 Dec 2025 170th DialFrost 🇸🇬 910 81 363ms 2 Dec 2025 170th JayXon 🇺🇸 910 81 467ms 10 days ago 177th IanUtley 909 70 10ms 7 Nov 2025 177th annaproxy 909 70 10ms 2 Dec 2025 179th GolfingSuccess 🇬🇷 909 85 60ms 30 Oct 2025 179th rucin93 🇵🇱 909 85 60ms 30 Oct 2025 179th KasperKivimaeki 🇫🇮 909 85 61ms 31 Oct 2025 179th bitsandbeyond 🇳🇱 909 85 60ms 1 Nov 2025 179th ovs-code 🇩🇪 909 85 53ms 3 Nov 2025 179th pardouin 🇫🇷 909 85 56ms 29 Nov 2025 179th m-tkach 🇺🇦 909 85 52ms 1 Dec 2025 179th DialFrost 🇸🇬 909 85 62ms 2 Dec 2025 179th AdrienHache 🇫🇷 909 85 71ms 2 Dec 2025 179th xsot 🇸🇬 909 85 59ms 2 Dec 2025 189th kg583 🇺🇸 908 65 5ms 30 Oct 2025 189th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 191st stefangimmillaro 908 91 268ms 1 Nov 2025 191st pardouin 🇫🇷 908 91 251ms 29 Nov 2025 193rd Natanaelel 🇸🇪 906 32 39ms 6 days ago 194th lukegustafson 🇺🇸 906 48 131ms 1 Dec 2025 195th sean-niemann 🇺🇸 906 69 40ms 1 Dec 2025 196th ovs-code 🇩🇪 906 74 120ms 28 Nov 2025 197th luuumine 🇫🇷 904 72 117ms 3 Dec 2025 197th emgordon154 904 72 132ms 10 days ago 199th emgordon154 903 67 5ms 23 Nov 2025 200th edsrzf 🇳🇿 903 69 82ms 14 days ago 201st emgordon154 903 87 103ms 27 days ago 202nd targrik 902 56 5ms 30 Oct 2025 203rd bitsandbeyond 🇳🇱 902 66 100ms 2 Nov 2025 203rd stefangimmillaro 902 66 124ms 4 Nov 2025 205th GrayJoKing 🇦🇺 902 79 9ms 26 days ago 206th DialFrost 🇸🇬 901 71 18ms 9 days ago 207th CaedenHarper 🇨🇦 901 78 416ms 29 Nov 2025 207th m-tkach 🇺🇦 901 78 657ms 1 Dec 2025 209th jkelly467 900 68 3,209ms 1 Dec 2025 210th MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 211th luuumine 🇫🇷 899 86 53ms 20 days ago 212th edsrzf 🇳🇿 898 59 2ms 31 Oct 2025 212th CaedenHarper 🇨🇦 898 59 2ms 30 Nov 2025 212th GrayJoKing 🇦🇺 898 59 2ms 27 days ago 215th CaedenHarper 🇨🇦 898 68 2ms 29 Nov 2025 215th m-tkach 🇺🇦 898 68 2ms 1 Dec 2025 217th edsrzf 🇳🇿 898 78 3ms 1 Dec 2025 218th GolfingSuccess 🇬🇷 898 92 275ms 30 Oct 2025 218th edsrzf 🇳🇿 898 92 264ms 31 Oct 2025 218th KasperKivimaeki 🇫🇮 898 92 280ms 31 Oct 2025 221st saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 221st MeWhenI 🇻🇦 897 51 542ms 29 Nov 2025 223rd stefangimmillaro 897 55 11ms 30 Oct 2025 223rd bricknellj 897 55 12ms 30 Oct 2025 223rd ovs-code 🇩🇪 897 55 13ms 31 Oct 2025 223rd bitsandbeyond 🇳🇱 897 55 11ms 1 Nov 2025 223rd GolfingSuccess 🇬🇷 897 55 13ms 3 Nov 2025 223rd Mukundan314 897 55 11ms 15 Nov 2025 223rd m-tkach 🇺🇦 897 55 11ms 24 Nov 2025 223rd snoozingnewt 🇨🇦 897 55 12ms 28 Nov 2025 223rd luuumine 🇫🇷 897 55 12ms 28 Nov 2025 223rd dokutan 897 55 13ms 1 Dec 2025 223rd xsot 🇸🇬 897 55 11ms 2 Dec 2025 223rd vhoulbreque 🇫🇷 897 55 13ms 2 Dec 2025 223rd jared-hughes 897 55 11ms 27 days ago 223rd duckyluuk 🇳🇱 897 55 12ms 27 days ago 223rd GrayJoKing 🇦🇺 897 55 12ms 26 days ago 223rd enigma 897 55 14ms 11 days ago 223rd taifu 897 55 25ms 10 days ago 223rd nwellnhof 🇩🇪 897 55 11ms 2 hours ago First Prev 161–240 of 1,125 Next Last