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 479th dokutan 704 98 2ms 14 Sep 2024 482nd MeWhenI 🇻🇦 703 88 131ms 1 Sep 2024 482nd error256 703 88 133ms 10 Sep 2024 484th Mabeloid 🇳🇴 703 109 10ms 1 Sep 2024 484th MassimoParisi 703 109 10ms 18 Sep 2024 484th klixel 🇨🇦 703 109 9ms 21 Sep 2024 484th NotNoper 703 109 10ms 29 Oct 2024 484th za3k 703 109 10ms 15 Jul 2025 484th RaBa21 🇭🇺 703 109 9ms 18 Jul 2025 484th zgialor-lab 703 109 10ms 17 Dec 2025 491st CaedenHarper 🇨🇦 703 187 279ms 8 Nov 2025 492nd DialFrost 🇸🇬 702 61 973ms 31 Aug 2025 492nd Steffan153 🇫🇮 702 61 712ms 23 days ago 494th ovs-code 🇩🇪 702 128 2ms 1 Sep 2024 495th emgordon154 701 101 10ms 1 Sep 2024 496th snoozingnewt 🇨🇦 699 91 98ms 2 days ago 497th KatieLG 🇬🇧 697 91 464ms 1 Sep 2024 498th frosster 🇨🇦 697 99 2ms 21 Mar 2025 499th sean-niemann 🇺🇸 697 114 108ms 7 Sep 2024 500th elgan65536 🇺🇸 697 172 194ms 23 Sep 2024 501st Andrey2001 696 110 10ms 31 Jan 2026 502nd MeWhenI 🇻🇦 694 59 1,026ms 13 Jun 2025 503rd MostParsingVex 694 154 1,893ms 15 Sep 2024 504th sean-niemann 🇺🇸 692 107 3ms 23 Aug 2025 505th stefangimmillaro 691 90 2,365ms 14 Nov 2024 506th JunkIce 690 92 490ms 3 Dec 2024 507th aksyristos 690 111 10ms 1 Sep 2024 507th wh3n3v3r 🇨🇿 690 111 9ms 11 Nov 2024 507th AstroOrbis 690 111 10ms 30 Jun 2025 510th emgordon154 690 288 1,906ms 2 Oct 2024 511th GolfingSuccess 🇬🇷 686 131 2ms 1 Sep 2024 512th kaascevich 685 116 1,758ms 15 Sep 2025 513th DialFrost 🇸🇬 682 62 37ms 30 Jan 2025 514th olleicua 🇺🇸 681 104 10ms 11 Sep 2024 514th charliegaming 681 104 11ms 28 Nov 2024 516th DialFrost 🇸🇬 681 118 93ms 22 Jun 2025 517th error256 680 63 930ms 20 Dec 2025 518th MeWhenI 🇻🇦 679 117 117ms 2 Sep 2024 518th stefangimmillaro 679 117 99ms 2 Sep 2024 520th madex 🇩🇪 678 177 220ms 17 Sep 2024 521st BlankSpruce 676 158 66ms 1 Sep 2024 522nd dcgjb 674 69 305ms 11 Sep 2024 523rd alicethecatwhisperermeow 672 132 447ms 14 Sep 2024 524th stefangimmillaro 671 63 34ms 2 Sep 2024 524th SirBogman 🇺🇸 671 63 37ms 5 Sep 2024 526th madeforlosers 668 106 15ms 23 Oct 2024 527th chunes3 🇺🇸 668 112 64ms 1 Sep 2024 528th prestosilver 🇺🇸 668 121 479ms 4 Feb 2026 529th voytxt 🇨🇿 665 93 147ms 17 Apr 2025 530th DialFrost 🇸🇬 663 96 105ms 28 Nov 2025 531st DialFrost 🇸🇬 663 181 203ms 12 Apr 2025 532nd dokutan 662 79 182ms 3 Sep 2024 533rd Maznek 662 107 10ms 8 Oct 2024 533rd dokutan 662 107 10ms 5 Jun 2025 535th LeoCh01 660 116 11ms 1 Sep 2024 536th GolfingSuccess 🇬🇷 660 162 471ms 1 Sep 2024 536th ovs-code 🇩🇪 660 162 3,010ms 1 Sep 2024 538th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 539th Shanethegamer 🇺🇸 657 135 435ms 1 Sep 2024 540th lukechampine 657 200 274ms 7 Jun 2025 540th jerrandolph 657 200 296ms 21 Sep 2025 542nd msbranicky 656 136 3ms 1 Sep 2024 543rd msbranicky 655 95 2,221ms 8 Jan 2025 544th albanian-laundromat 655 189 44ms 14 Sep 2025 545th TFeld00 🇩🇰 651 65 35ms 3 Sep 2024 546th Shanethegamer 🇺🇸 651 95 142ms 8 Jan 2025 547th ShiraJoseph 🇺🇸 650 109 9ms 22 Sep 2024 548th msbranicky 648 203 285ms 1 Sep 2024 549th Shanethegamer 🇺🇸 647 206 32ms 4 Sep 2024 550th AlephSquirrel 647 248 3ms 29 Sep 2024 551st stefangimmillaro 645 71 1,320ms 3 Sep 2024 552nd Waffle3z 645 107 2ms 2 Oct 2024 553rd stefangimmillaro 645 151 494ms 6 Oct 2025 554th mrxz 🇳🇱 644 110 11ms 22 Sep 2024 554th weliveinhell 🇭🇹 644 110 11ms 28 Sep 2024 556th Zhenyu-Bo 643 119 9ms 1 Aug 2025 556th tomh1012 643 119 11ms 10 days ago 558th BlankSpruce 642 140 2ms 1 Sep 2024 559th anter69 🇭🇺 641 66 33ms 25 Oct 2024 560th aDwarfNamedUrist 640 138 119ms 4 Sep 2024 First Prev 481–560 of 765 Next Last