The Calendar hole will go live in approximately 3 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 BREMAUCY 🇫🇷 585 109 461ms 26 days ago 722nd Schmitt-Very-Cool 584 86 10ms 23 days ago 723rd dokutan 582 73 216ms 28 Nov 2025 724th Protothor 582 76 9ms 24 days ago 725th SwordF-Official 576 92 2ms 16 Nov 2025 725th HumanoidCPU 576 92 2ms 29 Nov 2025 727th Maashau 576 106 2ms 26 days ago 728th BREMAUCY 🇫🇷 573 78 37ms 26 days ago 729th MeWhenI 🇻🇦 573 111 16ms 28 Nov 2025 730th HumanoidCPU 572 181 2,256ms 30 Nov 2025 731st Schmitt-Very-Cool 571 128 69ms 22 days ago 732nd FortuiteMan 🇫🇷 564 120 13ms 3 days ago 733rd bitsandbeyond 🇳🇱 563 71 51ms 7 Nov 2025 734th albanian-laundromat 563 104 1,258ms 30 Oct 2025 735th CaedenHarper 🇨🇦 557 121 10ms 30 Nov 2025 736th TheZwierzLF 🇵🇱 552 81 36ms 6 days ago 737th bitsandbeyond 🇳🇱 551 107 4ms 16 Nov 2025 738th prestosilver 🇺🇸 550 99 130ms 9 days ago 739th SirBogman 🇺🇸 548 59 5ms 25 days ago 740th HumanoidCPU 546 88 264ms 27 days ago 741st Schmitt-Very-Cool 541 130 446ms 27 days ago 742nd Schmitt-Very-Cool 541 142 27ms 23 days ago 743rd CLOStrophobic 🇮🇹 540 93 10ms 24 days ago 744th emgordon154 538 79 3ms 24 Nov 2025 745th dokutan 535 357 12ms 28 Nov 2025 746th lacrosse 532 84 45ms 29 Nov 2025 747th HumanoidCPU 529 95 73ms 29 Nov 2025 748th aksyristos 526 85 54ms 24 days ago 749th aksyristos 526 146 27ms 24 days ago 750th logalex8369 🇺🇸 523 96 10ms 9 days ago 751st Schmitt-Very-Cool 516 160 265ms 23 days ago 752nd OllieBoyne 🇬🇧 513 98 12ms 16 days ago 753rd bitsandbeyond 🇳🇱 512 131 116ms 28 Nov 2025 754th ravnskjaer 🇩🇰 506 139 337ms 12 days ago 755th bitsandbeyond 🇳🇱 503 126 3ms 31 Oct 2025 756th aksyristos 500 165 248ms 24 days ago 757th te-chnical 497 89 10ms 5 days ago 758th CaedenHarper 🇨🇦 497 94 7ms 29 Nov 2025 759th MeWhenI 🇻🇦 488 80 32ms 24 Nov 2025 760th DrPrettyman 469 107 26ms 5 days ago 761st CaedenHarper 🇨🇦 469 218 447ms 30 Nov 2025 762nd BREMAUCY 🇫🇷 466 165 27ms 25 days ago 763rd HumanoidCPU 458 149 43ms 30 Nov 2025 764th aksyristos 455 148 9ms 24 days ago 765th dokutan 454 175 96ms 15 days ago 766th logalex8369 🇺🇸 451 98 10ms 9 days ago 767th robbertvz 441 114 11ms 12 days ago 768th dokutan 439 161 67ms 15 days ago 769th Schmitt-Very-Cool 414 116 268ms 23 days ago 770th UnderKoen 🇳🇱 413 206 4ms 3 Nov 2025 771st dokutan 399 95 6ms 14 days ago 772nd dokutan 384 266 392ms 15 days ago 773rd dokutan 382 166 2ms 25 days ago 774th Msleizak 🇫🇷 381 126 279ms 28 Nov 2025 775th dokutan 373 196 744ms 22 days ago 776th dokutan 363 122 130ms 26 days ago 777th BREMAUCY 🇫🇷 363 188 41ms 25 days ago 778th JOrE20 🇺🇸 360 253 7ms 28 Nov 2025 779th HumanoidCPU 353 166 1,354ms 29 Nov 2025 780th bitsandbeyond 🇳🇱 352 543 14ms 6 Nov 2025 781st aksyristos 334 228 9ms 24 days ago 782nd JOrE20 🇺🇸 333 229 9ms 25 days ago 783rd JOrE20 🇺🇸 333 248 261ms 26 days ago 784th aksyristos 332 220 78ms 24 days ago 785th CaedenHarper 🇨🇦 330 88 52ms 28 Nov 2025 786th dokutan 320 200 14ms 28 Nov 2025 787th MeWhenI 🇻🇦 318 287 7ms 23 Nov 2025 788th aksyristos 315 194 3,712ms 24 days ago 789th KatieLG 🇬🇧 314 326 477ms 27 days ago 790th dokutan 310 274 1ms 28 Nov 2025 791st Schmitt-Very-Cool 293 233 42ms 22 days ago 792nd BambooleanLogic 🇸🇪 275 161 10ms 6 days ago 793rd JOrE20 🇺🇸 274 310 2ms 23 days ago 794th JOrE20 🇺🇸 267 180 746ms 26 days ago 795th stefangimmillaro 264 173 1ms 1 Nov 2025 796th dokutan 260 318 250ms 15 days ago 797th Schmitt-Very-Cool 252 115 48ms 23 days ago 798th aksyristos 250 211 267ms 24 days ago 799th dokutan 247 308 7ms 26 days ago 800th Andrey2001 246 204 9ms 23 days ago First Prev 721–800 of 1,132 Next Last