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 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 KatieLG 🇬🇧 589 108 8ms 30 Nov 2025 722nd BREMAUCY 🇫🇷 586 109 461ms 1 Dec 2025 723rd BREMAUCY 🇫🇷 586 141 260ms 2 Dec 2025 724th Yewzir 🇧🇪 585 82 285ms 30 Nov 2025 725th aksyristos 585 83 2ms 3 Dec 2025 726th MeWhenI 🇻🇦 584 74 106ms 24 Nov 2025 727th Schmitt-Very-Cool 584 86 10ms 26 days ago 728th dokutan 582 73 216ms 28 Nov 2025 729th Protothor 582 76 9ms 27 days ago 730th SwordF-Official 576 92 2ms 16 Nov 2025 730th HumanoidCPU 576 92 2ms 29 Nov 2025 732nd Maashau 576 106 2ms 1 Dec 2025 733rd BREMAUCY 🇫🇷 574 78 37ms 1 Dec 2025 734th MeWhenI 🇻🇦 573 111 16ms 28 Nov 2025 735th HumanoidCPU 572 181 2,256ms 30 Nov 2025 736th Schmitt-Very-Cool 571 128 69ms 25 days ago 737th FortuiteMan 🇫🇷 564 120 13ms 7 days ago 738th bitsandbeyond 🇳🇱 563 71 51ms 7 Nov 2025 739th albanian-laundromat 563 104 1,258ms 30 Oct 2025 740th CaedenHarper 🇨🇦 557 121 10ms 30 Nov 2025 741st TheZwierzLF 🇵🇱 552 81 36ms 9 days ago 742nd bitsandbeyond 🇳🇱 551 107 4ms 16 Nov 2025 743rd prestosilver 🇺🇸 549 99 130ms 12 days ago 744th SirBogman 🇺🇸 548 59 5ms 2 Dec 2025 745th HumanoidCPU 546 88 264ms 30 Nov 2025 746th Schmitt-Very-Cool 541 130 446ms 1 Dec 2025 747th Schmitt-Very-Cool 541 142 27ms 26 days ago 748th CLOStrophobic 🇮🇹 540 93 10ms 27 days ago 749th emgordon154 538 79 3ms 24 Nov 2025 750th dokutan 535 357 12ms 28 Nov 2025 751st lacrosse 533 84 45ms 29 Nov 2025 752nd HumanoidCPU 529 95 73ms 29 Nov 2025 753rd aksyristos 526 85 54ms 3 Dec 2025 754th aksyristos 526 146 27ms 3 Dec 2025 755th logalex8369 🇺🇸 523 96 10ms 12 days ago 756th Schmitt-Very-Cool 517 160 265ms 26 days ago 757th OllieBoyne 🇬🇧 513 98 12ms 19 days ago 758th bitsandbeyond 🇳🇱 512 131 116ms 28 Nov 2025 759th ravnskjaer 🇩🇰 506 139 337ms 16 days ago 760th bitsandbeyond 🇳🇱 503 126 3ms 31 Oct 2025 761st aksyristos 501 165 248ms 3 Dec 2025 762nd CaedenHarper 🇨🇦 498 94 7ms 29 Nov 2025 763rd te-chnical 497 89 10ms 8 days ago 764th MeWhenI 🇻🇦 488 80 32ms 24 Nov 2025 765th DrPrettyman 470 107 26ms 9 days ago 766th CaedenHarper 🇨🇦 469 218 1,500ms 30 Nov 2025 767th BREMAUCY 🇫🇷 466 165 27ms 2 Dec 2025 768th HumanoidCPU 458 149 43ms 30 Nov 2025 769th aksyristos 455 148 9ms 3 Dec 2025 770th dokutan 454 175 96ms 18 days ago 771st logalex8369 🇺🇸 451 98 10ms 12 days ago 772nd robbertvz 441 114 11ms 16 days ago 773rd dokutan 439 161 67ms 18 days ago 774th Schmitt-Very-Cool 414 116 268ms 26 days ago 775th UnderKoen 🇳🇱 413 206 4ms 3 Nov 2025 776th dokutan 399 95 6ms 17 days ago 777th dokutan 384 266 1,426ms 18 days ago 778th dokutan 382 166 2ms 3 Dec 2025 779th Msleizak 🇫🇷 381 126 279ms 28 Nov 2025 780th dokutan 373 196 744ms 25 days ago 781st dokutan 363 122 130ms 1 Dec 2025 782nd BREMAUCY 🇫🇷 363 188 41ms 2 Dec 2025 783rd JOrE20 🇺🇸 360 253 7ms 28 Nov 2025 784th HumanoidCPU 353 166 1,354ms 29 Nov 2025 785th bitsandbeyond 🇳🇱 352 543 14ms 6 Nov 2025 786th aksyristos 334 228 9ms 3 Dec 2025 787th JOrE20 🇺🇸 333 229 9ms 2 Dec 2025 788th JOrE20 🇺🇸 333 248 261ms 1 Dec 2025 789th aksyristos 332 220 78ms 3 Dec 2025 790th CaedenHarper 🇨🇦 330 88 52ms 28 Nov 2025 791st dokutan 320 200 14ms 28 Nov 2025 792nd MeWhenI 🇻🇦 318 287 7ms 23 Nov 2025 793rd aksyristos 315 194 3,712ms 3 Dec 2025 794th KatieLG 🇬🇧 314 326 1,454ms 30 Nov 2025 795th dokutan 310 274 1ms 28 Nov 2025 796th Schmitt-Very-Cool 293 233 42ms 25 days ago 797th BambooleanLogic 🇸🇪 275 161 10ms 10 days ago 798th JOrE20 🇺🇸 274 310 2ms 26 days ago 799th JOrE20 🇺🇸 267 180 746ms 1 Dec 2025 800th stefangimmillaro 264 173 1ms 1 Nov 2025 First Prev 721–800 of 1,137 Next Last