The Multitap Input hole will go live in approximately 10 hours. Why not try and solve it ahead of time?
PalindromemordnilaP 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 Calendar 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 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 ArkScript 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 ArkScript 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 Calendar 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 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 241st rak1507 🇬🇧 819 31 3ms 11 Sep 2024 242nd sean-niemann 🇺🇸 819 151 103ms 16 Jan 2025 243rd dokutan 818 71 427ms 13 Sep 2024 243rd KatieLG 🇬🇧 818 71 361ms 28 Oct 2024 245th JayXon 🇺🇸 818 243 1,894ms 10 Jul 2025 246th canissimia 🇦🇶 816 116 13ms 4 Sep 2024 247th m-tkach 🇺🇦 816 170 652ms 15 Jan 2025 248th RyanMHsiao 815 244 1,930ms 25 Sep 2024 249th GrayJoKing 🇦🇺 814 84 13ms 1 Sep 2024 249th annaproxy 814 84 17ms 22 Oct 2024 251st tomtheisen 🇺🇸 814 109 437ms 8 Nov 2024 252nd ovs-code 🇩🇪 813 52 39ms 1 Sep 2024 253rd error256 811 99 116ms 4 Sep 2024 254th error256 810 77 4ms 1 Sep 2024 255th error256 810 150 57ms 5 May 2025 256th MostParsingVex 809 153 51ms 3 Oct 2024 257th primo-ppcg 🇹🇭 809 232 145ms 1 Dec 2025 258th SirBogman 🇺🇸 806 155 45ms 3 Sep 2024 259th error256 805 87 6ms 16 Apr 2025 259th edsrzf 🇳🇿 805 87 6ms 1 Dec 2025 261st GolfingSuccess 🇬🇷 805 210 1,431ms 8 Feb 2025 262nd kg583 🇺🇸 802 112 7ms 9 May 2025 263rd ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 264th m-tkach 🇺🇦 802 177 27ms 27 Sep 2024 265th emgordon154 801 211 1,431ms 24 Jan 2025 266th MeWhenI 🇻🇦 799 50 3ms 1 Sep 2024 266th retrohun 799 50 3ms 9 Mar 2025 268th namelessiw 799 111 422ms 22 Apr 2025 269th albanian-laundromat 798 201 4ms 8 days ago 270th nwellnhof 🇩🇪 797 134 395ms 2 Sep 2024 270th tailorspy 797 134 485ms 16 Sep 2024 272nd DialFrost 🇸🇬 796 94 95ms 17 Mar 2025 273rd MeWhenI 🇻🇦 795 101 127ms 3 Sep 2024 274th lifthrasiir 🇰🇷 793 32 2ms 29 Nov 2024 275th rucin93 🇵🇱 792 76 131ms 31 Oct 2024 276th FlorianCassayre 🇫🇷 790 79 14ms 15 Sep 2024 277th pardouin 🇫🇷 789 73 100ms 3 Sep 2024 278th stefangimmillaro 789 166 262ms 4 Sep 2024 279th mousetail 🇳🇱 787 62 66ms 3 Sep 2024 279th GolfingSuccess 🇬🇷 787 62 12ms 2 Dec 2025 281st kg583 🇺🇸 787 89 7ms 20 Dec 2025 282nd ovs-code 🇩🇪 787 95 89ms 1 Sep 2024 283rd sean-niemann 🇺🇸 785 113 431ms 5 Sep 2024 284th MeWhenI 🇻🇦 785 157 15ms 7 Sep 2024 285th albanian-laundromat 782 114 2ms 27 Nov 2025 286th nwellnhof 🇩🇪 780 80 16ms 4 Sep 2024 286th canissimia 🇦🇶 780 80 17ms 12 Sep 2024 286th rzv-me 780 80 5ms 5 Oct 2024 286th RaBa21 🇭🇺 780 80 10ms 18 Jul 2025 286th 4atj 780 80 16ms 1 Dec 2025 286th HPWiz 🇳🇿 780 80 15ms 6 Dec 2025 286th zgialor-lab 780 80 11ms 17 Dec 2025 293rd KingSkyrock 🇺🇸 778 91 10ms 14 Oct 2024 293rd HumanoidCPU 778 91 9ms 22 Nov 2025 295th stefangimmillaro 778 114 428ms 4 Sep 2024 296th MeWhenI 🇻🇦 777 39 33ms 2 Sep 2024 297th the-zammers 774 114 117ms 1 Dec 2024 298th dokutan 773 104 167ms 1 Sep 2024 299th bizy-coder 771 81 14ms 1 Sep 2024 299th Natanaelel 🇸🇪 771 81 15ms 1 Sep 2024 299th GrayJoKing 🇦🇺 771 81 15ms 2 Sep 2024 299th bricknellj 771 81 15ms 6 Sep 2024 299th wh3n3v3r 🇨🇿 771 81 10ms 11 Nov 2024 299th xnor-gate 771 81 15ms 4 Mar 2025 299th retrohun 771 81 16ms 9 Mar 2025 299th 051 🇸🇬 771 81 15ms 8 Oct 2025 299th edsrzf 🇳🇿 771 81 15ms 1 Dec 2025 308th error256 769 139 470ms 24 Sep 2024 309th emgordon154 769 156 372ms 4 Mar 2025 310th JunkIce 764 76 397ms 3 Dec 2024 311th emplv 🇱🇻 762 79 128ms 1 Nov 2024 312th jatloe 761 82 11ms 4 Sep 2024 312th rchalamala 761 82 10ms 2 Jan 2025 314th error256 760 116 122ms 2 Sep 2024 315th kg583 🇺🇸 757 102 5ms 19 Dec 2025 316th sean-niemann 🇺🇸 755 118 3ms 16 Jan 2025 317th Shanethegamer 🇺🇸 754 117 119ms 1 Sep 2024 318th emgordon154 753 94 9ms 1 Sep 2024 318th stefangimmillaro 753 94 9ms 4 Sep 2024 320th targrik 752 83 6ms 8 Feb 2025 First Prev 241–320 of 731 Next Last