PalindromemordnilaP 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 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 ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 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 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 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 241st JayXon 🇺🇸 851 87 2ms 20 Sep 2024 242nd snoozingnewt 🇨🇦 851 90 9ms 22 Nov 2025 243rd edsrzf 🇳🇿 849 90 5ms 12 days ago 244th JayXon 🇺🇸 849 105 3ms 17 Nov 2025 245th sean-niemann 🇺🇸 848 74 5ms 19 Dec 2024 245th Steffan153 🇫🇮 848 74 4ms 11 Feb 2026 247th rhdqor213 848 106 2ms 7 Jan 2026 248th xsot 🇸🇬 846 50 33ms 20 Dec 2025 249th error256 846 94 109ms 1 Sep 2024 250th ovs-code 🇩🇪 846 95 87ms 1 Sep 2024 250th JayXon 🇺🇸 846 95 155ms 24 May 2025 252nd retrohun 844 99 392ms 9 Dec 2025 253rd GrayJoKing 🇦🇺 843 84 9ms 2 Sep 2024 253rd uttumuttu 🇫🇮 843 84 11ms 30 Sep 2024 253rd didion0 🇺🇸 843 84 10ms 30 May 2025 256th edsrzf 🇳🇿 843 125 41ms 31 Dec 2024 256th kg583 🇺🇸 843 125 41ms 25 Mar 2025 258th edsrzf 🇳🇿 842 96 548ms 31 Jan 2026 259th SirBogman 🇺🇸 841 36 33ms 11 Sep 2024 260th Kacarott 🇦🇺 841 89 62ms 1 Sep 2024 260th error256 841 89 62ms 11 Dec 2025 262nd BlankSpruce 841 91 10ms 1 Sep 2024 262nd KatieLG 🇬🇧 841 91 10ms 1 Sep 2024 262nd ZakkkkAttackkkk 🇵🇭 841 91 10ms 1 Sep 2024 262nd BREMAUCY 🇫🇷 841 91 10ms 3 Sep 2024 262nd charliegaming 841 91 11ms 7 Sep 2024 262nd mbittner20 841 91 10ms 9 Sep 2024 262nd neihousaigaai 841 91 10ms 28 Sep 2024 262nd Rubiksmath 841 91 10ms 1 Oct 2024 262nd lifthrasiir 🇰🇷 841 91 10ms 20 Nov 2024 262nd jameswmccarty 841 91 10ms 2 Dec 2024 262nd croc54 841 91 10ms 12 Jan 2025 262nd Pyroan 841 91 9ms 24 Feb 2025 262nd plcc0 841 91 161ms 6 Mar 2025 262nd WillowWispy 841 91 10ms 21 Mar 2025 262nd keelimeguy 🇺🇸 841 91 10ms 17 May 2025 262nd albanian-laundromat 841 91 10ms 5 Jun 2025 262nd clayboll99 841 91 9ms 15 Jul 2025 262nd vhoulbreque 🇫🇷 841 91 10ms 21 Nov 2025 262nd FortuiteMan 🇫🇷 841 91 9ms 30 Nov 2025 262nd LostSyntax21 🇬🇧 841 91 10ms 30 Nov 2025 262nd CaedenHarper 🇨🇦 841 91 30ms 1 Dec 2025 262nd JOrE20 841 91 10ms 23 Dec 2025 262nd solisolu 841 91 10ms 31 Dec 2025 262nd mateusz-sterczewski 841 91 10ms 15 Jan 2026 262nd Matter1024 🇮🇳 841 91 10ms 31 Jan 2026 262nd Flekay 🇩🇪 841 91 10ms 26 days ago 262nd souta-1326 841 91 11ms 21 days ago 262nd dokutan 841 91 10ms 13 days ago 290th JayXon 🇺🇸 840 111 481ms 20 Sep 2024 291st Shanethegamer 🇺🇸 838 96 157ms 24 May 2025 292nd Shanethegamer 🇺🇸 838 145 1,471ms 4 Sep 2024 292nd m-tkach 🇺🇦 838 145 70ms 27 Sep 2024 294th JayXon 🇺🇸 837 77 75ms 18 Jun 2025 295th sean-niemann 🇺🇸 836 74 164ms 4 Aug 2025 296th MeWhenI 🇻🇦 836 75 5ms 3 Sep 2024 296th xsot 🇸🇬 836 75 5ms 18 Dec 2025 298th Shanethegamer 🇺🇸 836 202 1,516ms 1 Mar 2025 299th xnor-gate 834 82 15ms 5 Mar 2025 300th nwellnhof 🇩🇪 833 48 4ms 1 Sep 2024 301st edsrzf 🇳🇿 833 106 9ms 5 days ago 302nd MeWhenI 🇻🇦 832 55 1,400ms 1 Sep 2024 302nd Natanaelel 🇸🇪 832 55 1,329ms 1 Sep 2024 304th fourth-bit 832 92 9ms 4 Sep 2024 304th bnic24 832 92 11ms 5 Sep 2024 306th nwellnhof 🇩🇪 832 108 2ms 10 Sep 2024 307th sean-niemann 🇺🇸 832 112 492ms 4 Sep 2024 308th error256 832 146 1,401ms 2 May 2025 309th MeWhenI 🇻🇦 830 45 3ms 1 Sep 2024 310th emgordon154 829 59 9ms 15 Nov 2024 311th MeWhenI 🇻🇦 829 75 2,185ms 24 Oct 2024 311th duckyluuk 🇳🇱 829 75 2,222ms 25 Oct 2024 313th emplv 🇱🇻 827 159 281ms 18 Sep 2024 314th MeWhenI 🇻🇦 825 98 401ms 2 Sep 2024 315th emgordon154 824 77 429ms 22 Nov 2024 316th duckyluuk 🇳🇱 824 86 9ms 1 Sep 2024 317th error256 824 98 140ms 12 Feb 2026 318th CLOStrophobic 🇮🇹 824 108 6ms 19 Feb 2025 319th adamnielson42 🇺🇸 823 93 10ms 7 Oct 2024 319th guilhem-roy 🇫🇷 823 93 10ms 31 May 2025 First Prev 241–320 of 765 Next Last