The Calendar hole will go live in approximately 2 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 721st SwordF-Official 576 92 2ms 16 Nov 2025 721st HumanoidCPU 576 92 2ms 29 Nov 2025 723rd Maashau 576 106 2ms 1 Dec 2025 724th BREMAUCY 🇫🇷 573 78 37ms 1 Dec 2025 725th Schmitt-Very-Cool 573 86 10ms 24 days ago 726th MeWhenI 🇻🇦 573 111 16ms 28 Nov 2025 727th HumanoidCPU 572 181 2,256ms 30 Nov 2025 728th Schmitt-Very-Cool 571 128 69ms 23 days ago 729th dokutan 567 110 68ms 16 days ago 730th albanian-laundromat 563 104 1,258ms 30 Oct 2025 731st HumanoidCPU 562 111 110ms 30 Nov 2025 732nd CaedenHarper 🇨🇦 557 121 10ms 30 Nov 2025 733rd TheZwierzLF 🇵🇱 552 81 36ms 7 days ago 734th bitsandbeyond 🇳🇱 551 107 4ms 16 Nov 2025 735th prestosilver 🇺🇸 550 99 130ms 10 days ago 736th SirBogman 🇺🇸 548 59 5ms 26 days ago 737th HumanoidCPU 546 88 264ms 30 Nov 2025 738th dokutan 545 134 692ms 18 days ago 739th Schmitt-Very-Cool 541 130 446ms 1 Dec 2025 740th Schmitt-Very-Cool 541 142 27ms 24 days ago 741st emgordon154 538 79 3ms 24 Nov 2025 742nd dokutan 535 357 12ms 28 Nov 2025 743rd lacrosse 532 84 45ms 29 Nov 2025 744th CLOStrophobic 🇮🇹 530 93 10ms 25 days ago 745th HumanoidCPU 529 95 73ms 29 Nov 2025 746th aksyristos 526 85 54ms 25 days ago 747th aksyristos 526 146 27ms 25 days ago 748th Schmitt-Very-Cool 516 160 265ms 24 days ago 749th logalex8369 🇺🇸 514 96 10ms 10 days ago 750th dokutan 514 115 3ms 2 days ago 751st bitsandbeyond 🇳🇱 512 131 116ms 28 Nov 2025 752nd ravnskjaer 🇩🇰 506 139 337ms 13 days ago 753rd OllieBoyne 🇬🇧 503 98 12ms 17 days ago 754th aksyristos 500 165 248ms 25 days ago 755th te-chnical 497 89 10ms 6 days ago 756th CaedenHarper 🇨🇦 497 94 7ms 29 Nov 2025 757th MeWhenI 🇻🇦 488 80 32ms 24 Nov 2025 758th bitsandbeyond 🇳🇱 470 126 3ms 31 Oct 2025 759th CaedenHarper 🇨🇦 469 218 447ms 30 Nov 2025 760th BREMAUCY 🇫🇷 466 165 27ms 26 days ago 761st DrPrettyman 461 107 26ms 6 days ago 762nd HumanoidCPU 458 149 43ms 30 Nov 2025 763rd aksyristos 455 148 9ms 25 days ago 764th logalex8369 🇺🇸 451 98 10ms 10 days ago 765th dokutan 449 175 96ms 16 days ago 766th robbertvz 433 114 11ms 13 days ago 767th Schmitt-Very-Cool 414 116 268ms 24 days ago 768th UnderKoen 🇳🇱 413 206 4ms 3 Nov 2025 769th dokutan 395 94 6ms 15 days ago 770th dokutan 384 266 392ms 16 days ago 771st Msleizak 🇫🇷 381 126 279ms 28 Nov 2025 772nd BREMAUCY 🇫🇷 363 188 41ms 27 days ago 773rd JOrE20 🇺🇸 360 253 7ms 28 Nov 2025 774th HumanoidCPU 353 166 1,354ms 29 Nov 2025 775th bitsandbeyond 🇳🇱 352 543 14ms 6 Nov 2025 776th aksyristos 334 228 9ms 25 days ago 777th JOrE20 🇺🇸 333 229 9ms 26 days ago 778th JOrE20 🇺🇸 333 248 261ms 27 days ago 779th aksyristos 332 220 78ms 25 days ago 780th dokutan 331 159 88ms 27 days ago 781st CaedenHarper 🇨🇦 330 88 52ms 28 Nov 2025 782nd dokutan 322 217 43ms 27 days ago 783rd dokutan 320 200 14ms 28 Nov 2025 784th MeWhenI 🇻🇦 318 287 7ms 23 Nov 2025 785th aksyristos 315 194 3,712ms 25 days ago 786th KatieLG 🇬🇧 314 326 435ms 30 Nov 2025 787th dokutan 310 274 1ms 28 Nov 2025 788th Schmitt-Very-Cool 293 233 42ms 23 days ago 789th BambooleanLogic 🇸🇪 275 161 10ms 8 days ago 790th JOrE20 🇺🇸 274 310 2ms 24 days ago 791st JOrE20 🇺🇸 267 180 746ms 27 days ago 792nd stefangimmillaro 264 173 1ms 1 Nov 2025 793rd dokutan 260 318 250ms 16 days ago 794th Schmitt-Very-Cool 252 115 48ms 24 days ago 795th aksyristos 250 211 267ms 25 days ago 796th dokutan 247 308 7ms 27 days ago 797th Andrey2001 242 204 9ms 24 days ago 798th aksyristos 237 203 256ms 25 days ago 799th dokutan 232 197 2ms 28 Nov 2025 800th dokutan 227 295 136ms 27 days ago First Prev 721–800 of 1,120 Next Last