The Tower of Hanoi hole will go live in approximately 13 hours. Why not try and solve it ahead of time?
Recamán 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 375th KatieLG 🇬🇧 868 62 11ms 6 May 2021 375th Irratix 🇳🇱 868 62 9ms 7 May 2022 375th myfatemi04 868 62 10ms 4 Nov 2022 375th yzhs 🇩🇪 868 62 17ms 23 Jun 2023 375th Rubiksmath 868 62 10ms 18 Aug 2023 375th FlorianCassayre 🇫🇷 868 62 18ms 28 Sep 2023 375th SB-945 868 62 9ms 28 Feb 2024 375th bizy-coder 868 62 10ms 17 Aug 2024 375th wh3n3v3r 🇨🇿 868 62 10ms 13 Nov 2024 375th 4atj 868 62 10ms 30 Jun 2025 375th xiaoyiming123 868 62 10ms 24 Jul 2025 375th 123mjb 868 62 16ms 23 Sep 2025 388th jared-hughes 868 71 2ms 16 Feb 2022 388th Shanethegamer 🇺🇸 868 71 2ms 14 Nov 2022 388th GoateSo 868 71 2ms 26 Jul 2023 391st ovs-code 🇩🇪 868 78 15ms 1 Jul 2024 392nd mousetail 🇳🇱 868 98 120ms 13 Sep 2024 393rd GolfingSuccess 🇬🇷 867 59 430ms 15 Jan 2024 393rd MeWhenI 🇻🇦 867 59 397ms 13 Jul 2024 395th lifthrasiir 🇰🇷 867 179 10ms 17 Dec 2024 396th BBoehm 🇩🇪 866 57 9ms 28 Dec 2020 396th neihousaigaai 866 57 8ms 19 Mar 2021 396th Shanethegamer 🇺🇸 866 57 9ms 22 Apr 2023 396th biocommando 🇫🇮 866 57 8ms 12 Aug 2023 396th olleicua 🇺🇸 866 57 8ms 20 Jan 2024 396th helbling 🇨🇭 866 57 9ms 19 Jul 2024 402nd DialFrost 🇸🇬 866 100 102ms 3 hours ago 403rd JayXon 🇺🇸 866 157 1,563ms 15 Sep 2025 404th Shanethegamer 🇺🇸 865 68 86ms 17 Mar 2023 405th Shanethegamer 🇺🇸 865 96 1,303ms 17 Mar 2023 406th ovs-code 🇩🇪 863 47 34ms 24 Jun 2024 406th Andriamanitra 🇫🇮 863 47 37ms 28 Feb 2025 408th Shanethegamer 🇺🇸 863 77 79ms 12 May 2021 408th sean-niemann 🇺🇸 863 77 89ms 30 Dec 2024 410th billings7 🇬🇧 861 95 319ms 21 Nov 2021 411th ovs-code 🇩🇪 861 161 505ms 27 Mar 2025 412th sean-niemann 🇺🇸 860 54 5ms 23 Dec 2023 412th targrik 860 54 4ms 24 Jan 2025 414th sean-niemann 🇺🇸 859 78 44ms 24 Jan 2025 415th annaproxy 859 80 161ms 4 Sep 2022 415th Natanaelel 🇸🇪 859 80 141ms 12 Feb 2025 417th andersk 🇺🇸 859 99 121ms 8 Nov 2022 418th jared-hughes 858 74 2ms 16 Mar 2022 418th janbehrens 🇩🇪 858 74 2ms 21 Nov 2022 420th dbut2 🇦🇺 858 120 255ms 16 Jul 2025 420th edsrzf 🇳🇿 858 120 262ms 2 Sep 2025 422nd Ripick 857 75 120ms 3 Feb 2023 423rd annaproxy 857 79 11ms 22 Sep 2023 424th RockOfStone 856 72 2ms 5 Nov 2021 424th mtirado1 856 72 2ms 25 Dec 2022 424th regr4 856 72 2ms 13 Nov 2023 427th primo-ppcg 🇹🇭 855 51 1,021ms 23 Mar 2021 428th RYNO8 854 63 11ms 26 Aug 2021 428th Bonjour27891 🇻🇳 854 63 16ms 20 Mar 2022 428th frankgraziano 854 63 10ms 15 Feb 2023 428th scpchicken 🇵🇼 854 63 16ms 21 Apr 2023 428th adamnielson42 🇺🇸 854 63 10ms 25 Apr 2023 428th stefangimmillaro 854 63 10ms 30 Jul 2023 428th elgan65536 854 63 10ms 31 Mar 2024 428th jtaxen 854 63 9ms 10 Jun 2024 428th AlephSquirrel 854 63 16ms 26 Jun 2024 428th 5cw 🇺🇸 854 63 13ms 15 Jul 2024 428th Seek64 🇩🇪 854 63 10ms 1 Feb 2025 428th andrewjc2000 854 63 10ms 9 Mar 2025 428th HPWiz 🇳🇿 854 63 10ms 5 days ago 441st Shanethegamer 🇺🇸 853 60 350ms 16 Jan 2024 441st HumanoidCPU 853 60 410ms 17 Jun 2024 441st Babafaba 853 60 324ms 24 days ago 444th Steffan153 🇫🇮 852 55 128ms 22 Aug 2024 445th dvargas46 🇺🇸 851 48 4ms 20 Jun 2022 446th omurakazuaki 🇯🇵 851 58 8ms 25 Feb 2021 446th Andrey-Plotnikov 851 58 8ms 6 Nov 2024 446th Salutations45 851 58 9ms 11 Dec 2024 449th MeWhenI 🇻🇦 851 121 251ms 9 Feb 2023 449th DialFrost 🇸🇬 851 121 243ms 20 Dec 2024 First Prev 376–450 of 1,975 Next Last