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 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 641st Yewzir 🇧🇪 664 92 2,990ms 25 days ago 642nd Yewzir 🇧🇪 662 116 27ms 25 days ago 643rd GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 644th bitsandbeyond 🇳🇱 660 119 111ms 31 Oct 2025 645th CaedenHarper 🇨🇦 660 157 2,347ms 25 days ago 646th LostSyntax21 🇬🇧 657 75 20ms 24 days ago 647th msbranicky 657 93 2,878ms 21 days ago 648th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 649th MeWhenI 🇻🇦 656 95 78ms 23 Nov 2025 650th bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 651st GolfingSuccess 🇬🇷 651 157 447ms 18 days ago 652nd albanian-laundromat 650 91 4ms 24 Nov 2025 653rd bitsandbeyond 🇳🇱 650 98 9ms 16 Nov 2025 654th Ripick 649 76 12ms 14 Nov 2025 654th scpchicken 🇵🇼 649 76 11ms 20 days ago 656th AutumnWind75 649 119 385ms 15 days ago 657th BREMAUCY 🇫🇷 642 74 454ms 24 days ago 658th AlephSquirrel 641 105 8ms 24 days ago 659th mousetail 🇳🇱 640 77 11ms 23 Nov 2025 660th GolfingSuccess 🇬🇷 635 72 1ms 30 Oct 2025 661st dokutan 635 163 1,613ms 19 days ago 662nd HumanoidCPU 633 111 370ms 26 days ago 663rd HumanoidCPU 633 122 58ms 26 days ago 664th JOrE20 🇺🇸 632 70 8ms 27 days ago 665th Bmrl7 632 78 11ms 5 days ago 666th BREMAUCY 🇫🇷 630 97 3,199ms 22 days ago 667th msbranicky 630 131 269ms 21 days ago 668th stackofbears 629 62 39ms 2 days ago 669th prestosilver 🇺🇸 629 97 2ms 22 days ago 670th aksyristos 628 123 54ms 21 days ago 671st msbranicky 624 79 11ms 26 Nov 2025 672nd msbranicky 624 108 8ms 21 days ago 673rd alexsave 623 71 9ms 25 days ago 674th HumanoidCPU 620 85 90ms 26 days ago 675th HumanoidCPU 620 105 111ms 26 days ago 676th albanian-laundromat 616 82 4ms 25 Nov 2025 677th albanian-laundromat 616 99 2ms 25 days ago 678th MeWhenI 🇻🇦 615 76 5ms 23 Nov 2025 679th IISResetMe 615 78 273ms 25 days ago 680th MeWhenI 🇻🇦 615 104 17ms 23 Nov 2025 681st HumanoidCPU 614 72 9ms 26 days ago 681st olleicua 🇺🇸 614 72 10ms 17 days ago 683rd JOrE20 🇺🇸 613 102 43ms 27 days ago 684th tomh1012 613 104 415ms 24 days ago 685th HumanoidCPU 609 121 407ms 25 days ago 686th HumanoidCPU 608 105 404ms 26 days ago 687th AlephSquirrel 607 79 248ms 24 days ago 688th MeWhenI 🇻🇦 605 100 6ms 24 Nov 2025 689th D-MOVE 🇵🇭 604 74 39ms 16 days ago 690th MeWhenI 🇻🇦 604 111 125ms 24 Nov 2025 691st msbranicky 601 79 448ms 21 days ago 692nd themoonisacheese 601 82 11ms 16 days ago 693rd Schmitt-Very-Cool 600 127 10ms 19 days ago 694th CaedenHarper 🇨🇦 599 88 107ms 25 days ago 695th Nicronmil 598 74 9ms 14 days ago 695th two-bad 🇬🇧 598 74 10ms 8 days ago 697th anter69 🇭🇺 597 77 809ms 19 days ago 698th olleicua 🇺🇸 596 75 39ms 18 days ago 699th HumanoidCPU 595 107 9ms 26 days ago 700th RDShah 594 83 11ms 23 days ago 701st Natanaelel 🇸🇪 594 139 263ms 5 hours ago 702nd CaedenHarper 🇨🇦 592 81 240ms 25 days ago 703rd KatieLG 🇬🇧 589 108 8ms 24 days ago 704th HumanoidCPU 588 74 130ms 26 days ago 705th FortuiteMan 🇫🇷 586 114 13ms 28 hours ago 706th BREMAUCY 🇫🇷 586 141 260ms 23 days ago 707th Yewzir 🇧🇪 585 82 285ms 25 days ago 708th aksyristos 585 83 2ms 22 days ago 709th BREMAUCY 🇫🇷 585 109 461ms 24 days ago 710th MeWhenI 🇻🇦 583 74 106ms 24 Nov 2025 711th dokutan 582 73 216ms 27 days ago 712th Protothor 582 76 9ms 21 days ago 713th zgialor-lab 580 85 28ms 8 days ago 714th SwordF-Official 575 92 2ms 16 Nov 2025 714th HumanoidCPU 575 92 2ms 26 days ago 716th Maashau 575 106 2ms 24 days ago 717th BREMAUCY 🇫🇷 573 78 37ms 24 days ago 718th Schmitt-Very-Cool 573 86 10ms 20 days ago 719th MeWhenI 🇻🇦 573 111 16ms 27 days ago 720th HumanoidCPU 572 181 2,256ms 25 days ago First Prev 641–720 of 1,113 Next Last