The Calendar hole will go live in approximately 11 days. 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 77th pardouin 🇫🇷 924 69 388ms 20 days ago 77th DialFrost 🇸🇬 924 69 413ms 18 days ago 77th KasperKivimaeki 🇫🇮 924 69 383ms 17 days ago 84th rucin93 🇵🇱 924 76 388ms 30 Oct 2025 84th GolfingSuccess 🇬🇷 924 76 444ms 30 Oct 2025 84th stefangimmillaro 924 76 431ms 31 Oct 2025 84th sean-niemann 🇺🇸 924 76 479ms 31 Oct 2025 84th edsrzf 🇳🇿 924 76 553ms 31 Oct 2025 84th KasperKivimaeki 🇫🇮 924 76 492ms 1 Nov 2025 84th namelessiw 924 76 367ms 21 days ago 84th DialFrost 🇸🇬 924 76 361ms 18 days ago 92nd bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 92nd GolfingSuccess 🇬🇷 923 52 743ms 19 days ago 92nd sean-niemann 🇺🇸 923 52 762ms 18 days ago 95th rucin93 🇵🇱 923 66 2ms 30 Oct 2025 95th KasperKivimaeki 🇫🇮 923 66 2ms 30 Oct 2025 95th saito-ta 🇯🇵 923 66 2ms 5 Nov 2025 95th DialFrost 🇸🇬 923 66 2ms 18 days ago 95th AdrienHache 🇫🇷 923 66 2ms 17 days ago 100th edsrzf 🇳🇿 923 73 9ms 18 days ago 101st lukegustafson 🇺🇸 922 48 131ms 18 days ago 102nd sean-niemann 🇺🇸 921 55 97ms 18 days ago 103rd stefangimmillaro 920 48 8ms 31 Oct 2025 103rd rucin93 🇵🇱 920 48 9ms 31 Oct 2025 103rd bitsandbeyond 🇳🇱 920 48 8ms 31 Oct 2025 103rd GolfingSuccess 🇬🇷 920 48 8ms 3 Nov 2025 103rd ovs-code 🇩🇪 920 48 8ms 21 days ago 103rd sean-niemann 🇺🇸 920 48 9ms 18 days ago 103rd xsot 🇸🇬 920 48 9ms 17 days ago 110th GrayJoKing 🇦🇺 918 47 87ms 16 days ago 111th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 112th Shanethegamer 🇺🇸 918 62 291ms 3 Nov 2025 112th MeWhenI 🇻🇦 918 62 120ms 25 days ago 112th edsrzf 🇳🇿 918 62 181ms 18 days ago 115th GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 116th sean-niemann 🇺🇸 918 84 81ms 18 days ago 117th Shanethegamer 🇺🇸 917 49 420ms 3 Nov 2025 117th sean-niemann 🇺🇸 917 49 232ms 44 hours ago 119th rucin93 🇵🇱 917 71 116ms 30 Oct 2025 119th kumavale 917 71 124ms 31 Oct 2025 119th stefangimmillaro 917 71 119ms 31 Oct 2025 119th CaedenHarper 🇨🇦 917 71 121ms 19 days ago 119th edsrzf 🇳🇿 917 71 115ms 18 days ago 119th sean-niemann 🇺🇸 917 71 119ms 18 days ago 119th DialFrost 🇸🇬 917 71 119ms 18 days ago 119th JayXon 🇺🇸 917 71 132ms 3 hours ago 127th sean-niemann 🇺🇸 915 91 265ms 31 Oct 2025 127th stefangimmillaro 915 91 268ms 1 Nov 2025 127th pardouin 🇫🇷 915 91 251ms 20 days ago 130th sean-niemann 🇺🇸 914 65 117ms 18 days ago 131st Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 131st m-tkach 🇺🇦 914 84 27ms 18 days ago 133rd kg583 🇺🇸 913 52 365ms 30 Oct 2025 133rd sean-niemann 🇺🇸 913 52 390ms 18 days ago 135th sean-niemann 🇺🇸 913 64 5ms 18 days ago 136th Kacarott 🇦🇺 913 80 69ms 20 days ago 136th ovs-code 🇩🇪 913 80 101ms 20 days ago 138th xnor-gate 912 54 11ms 20 days ago 138th hellopir2 912 54 10ms 20 days ago 138th rucin93 🇵🇱 912 54 12ms 11 days ago 141st pardouin 🇫🇷 912 77 357ms 20 days ago 142nd stefangimmillaro 911 55 82ms 31 Oct 2025 143rd Shanethegamer 🇺🇸 911 66 1,247ms 3 Nov 2025 143rd edsrzf 🇳🇿 911 66 1,434ms 18 days ago 145th pardouin 🇫🇷 911 67 4,035ms 1 Nov 2025 145th bitsandbeyond 🇳🇱 911 67 4,371ms 2 Nov 2025 145th sean-niemann 🇺🇸 911 67 3,694ms 18 days ago 148th stefangimmillaro 911 75 41ms 31 Oct 2025 149th edsrzf 🇳🇿 910 65 5ms 45 hours ago 150th bitsandbeyond 🇳🇱 910 70 397ms 1 Nov 2025 150th namelessiw 910 70 417ms 2 Nov 2025 152nd kg583 🇺🇸 910 74 11ms 30 Oct 2025 153rd Mukundan314 909 67 2ms 26 days ago 153rd luuumine 🇫🇷 909 67 2ms 16 days ago 153rd Alex-x90 🇺🇸 909 67 2ms 15 days ago 156th IanUtley 909 70 10ms 7 Nov 2025 156th annaproxy 909 70 10ms 17 days ago 158th kg583 🇺🇸 908 65 5ms 30 Oct 2025 158th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 160th sean-niemann 🇺🇸 908 81 388ms 31 Oct 2025 First Prev 81–160 of 1,076 Next Last