The Calendar hole will go live in approximately 6 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 721st HumanoidCPU 572 181 2,256ms 25 days ago 722nd Schmitt-Very-Cool 571 128 69ms 19 days ago 723rd FortuiteMan 🇫🇷 564 120 13ms 22 hours ago 724th bitsandbeyond 🇳🇱 563 71 51ms 7 Nov 2025 725th albanian-laundromat 563 104 1,258ms 30 Oct 2025 726th CaedenHarper 🇨🇦 557 121 10ms 25 days ago 727th TheZwierzLF 🇵🇱 552 81 36ms 3 days ago 728th bitsandbeyond 🇳🇱 551 107 4ms 16 Nov 2025 729th prestosilver 🇺🇸 550 99 130ms 6 days ago 730th SirBogman 🇺🇸 548 59 5ms 22 days ago 731st HumanoidCPU 545 88 264ms 25 days ago 732nd Schmitt-Very-Cool 541 130 446ms 24 days ago 733rd CLOStrophobic 🇮🇹 540 93 10ms 21 days ago 734th Schmitt-Very-Cool 540 142 27ms 20 days ago 735th emgordon154 538 79 3ms 24 Nov 2025 736th dokutan 535 357 12ms 26 days ago 737th lacrosse 532 84 45ms 25 days ago 738th HumanoidCPU 529 95 73ms 26 days ago 739th aksyristos 526 85 54ms 21 days ago 740th aksyristos 526 146 27ms 21 days ago 741st logalex8369 🇺🇸 523 96 10ms 6 days ago 742nd Schmitt-Very-Cool 515 160 265ms 20 days ago 743rd OllieBoyne 🇬🇧 512 98 12ms 13 days ago 744th bitsandbeyond 🇳🇱 512 131 116ms 26 days ago 745th ravnskjaer 🇩🇰 506 139 337ms 9 days ago 746th bitsandbeyond 🇳🇱 503 126 3ms 31 Oct 2025 747th aksyristos 500 165 248ms 21 days ago 748th te-chnical 497 89 10ms 2 days ago 749th CaedenHarper 🇨🇦 497 94 7ms 26 days ago 750th MeWhenI 🇻🇦 488 80 32ms 24 Nov 2025 751st DrPrettyman 469 107 26ms 2 days ago 752nd CaedenHarper 🇨🇦 469 218 447ms 25 days ago 753rd BREMAUCY 🇫🇷 465 165 27ms 22 days ago 754th HumanoidCPU 458 149 43ms 25 days ago 755th aksyristos 455 148 9ms 21 days ago 756th dokutan 454 175 96ms 12 days ago 757th logalex8369 🇺🇸 451 98 10ms 6 days ago 758th robbertvz 441 114 11ms 9 days ago 759th dokutan 439 161 67ms 12 days ago 760th Schmitt-Very-Cool 413 116 268ms 20 days ago 761st UnderKoen 🇳🇱 413 206 4ms 3 Nov 2025 762nd dokutan 399 95 6ms 11 days ago 763rd dokutan 384 266 392ms 12 days ago 764th dokutan 382 166 2ms 22 days ago 765th Msleizak 🇫🇷 381 126 279ms 26 days ago 766th dokutan 373 196 744ms 19 days ago 767th dokutan 363 122 130ms 23 days ago 768th BREMAUCY 🇫🇷 363 188 41ms 23 days ago 769th JOrE20 🇺🇸 360 253 7ms 26 days ago 770th HumanoidCPU 353 166 1,354ms 26 days ago 771st bitsandbeyond 🇳🇱 352 543 14ms 6 Nov 2025 772nd aksyristos 334 228 9ms 21 days ago 773rd JOrE20 🇺🇸 333 229 9ms 22 days ago 774th JOrE20 🇺🇸 333 248 261ms 23 days ago 775th aksyristos 332 220 78ms 21 days ago 776th CaedenHarper 🇨🇦 330 88 52ms 26 days ago 777th dokutan 320 200 14ms 26 days ago 778th MeWhenI 🇻🇦 318 287 7ms 23 Nov 2025 779th aksyristos 315 194 3,712ms 21 days ago 780th KatieLG 🇬🇧 314 326 477ms 25 days ago 781st dokutan 310 274 1ms 26 days ago 782nd Schmitt-Very-Cool 293 233 42ms 19 days ago 783rd BambooleanLogic 🇸🇪 275 161 10ms 4 days ago 784th JOrE20 🇺🇸 274 310 2ms 20 days ago 785th JOrE20 🇺🇸 267 180 746ms 23 days ago 786th stefangimmillaro 264 173 1ms 1 Nov 2025 787th dokutan 259 318 250ms 12 days ago 788th Schmitt-Very-Cool 252 115 48ms 20 days ago 789th aksyristos 250 211 267ms 21 days ago 790th dokutan 247 308 7ms 23 days ago 791st Andrey2001 246 204 9ms 20 days ago 792nd dokutan 238 221 81ms 23 days ago 793rd aksyristos 236 203 256ms 21 days ago 794th dokutan 232 197 2ms 26 days ago 795th dokutan 230 303 41ms 23 days ago 796th dokutan 227 295 136ms 23 days ago 797th KatieLG 🇬🇧 223 327 61ms 25 days ago 798th KatieLG 🇬🇧 222 256 8ms 25 days ago 799th dokutan 198 360 9ms 23 days ago 800th dokutan 190 255 2ms 23 days ago First Prev 721–800 of 1,122 Next Last