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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Gray Code Decoder Gray Code Encoder 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 Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 478th nstearns96 🇬🇧 716 107 11ms 13 Nov 2024 478th rchalamala 716 107 10ms 2 Jan 2025 478th brochmann 🇸🇪 716 107 10ms 16 Oct 2025 484th Shanethegamer 🇺🇸 716 114 120ms 2 Sep 2024 485th snyderek 🇺🇸 716 150 57ms 15 Sep 2024 486th jusaka 714 89 423ms 11 hours ago 487th alexsave 709 100 11ms 22 Sep 2024 488th JesseNoEyes 🇺🇸 709 108 11ms 30 Sep 2024 489th error256 708 97 15ms 14 Jan 2026 490th adriweb 🇫🇷 707 98 2ms 4 Sep 2024 490th sean-niemann 🇺🇸 707 98 2ms 5 Sep 2024 490th dokutan 707 98 2ms 14 Sep 2024 493rd MostParsingVex 707 152 1,843ms 18 Mar 2026 494th CaedenHarper 🇨🇦 707 187 352ms 8 Nov 2025 495th DialFrost 🇸🇬 706 61 1,104ms 31 Aug 2025 495th Steffan153 🇫🇮 706 61 879ms 17 Feb 2026 497th HumanoidCPU 706 90 514ms 2 Sep 2024 498th MeWhenI 🇻🇦 705 88 142ms 1 Sep 2024 498th error256 705 88 148ms 10 Sep 2024 500th ovs-code 🇩🇪 705 128 2ms 1 Sep 2024 501st snoozingnewt 🇨🇦 703 91 98ms 10 Mar 2026 502nd Mabeloid 🇳🇴 703 109 11ms 1 Sep 2024 502nd MassimoParisi 703 109 12ms 18 Sep 2024 502nd klixel 🇨🇦 703 109 10ms 21 Sep 2024 502nd NotNoper 703 109 10ms 29 Oct 2024 502nd za3k 703 109 10ms 15 Jul 2025 502nd RaBa21 🇭🇺 703 109 10ms 18 Jul 2025 502nd zgialor-lab 703 109 11ms 17 Dec 2025 509th elgan65536 🇺🇸 703 172 198ms 23 Sep 2024 510th emgordon154 702 101 10ms 1 Sep 2024 511th sean-niemann 🇺🇸 702 107 3ms 23 Aug 2025 512th sean-niemann 🇺🇸 702 114 109ms 7 Sep 2024 513th frosster 🇨🇦 700 99 2ms 21 Mar 2025 514th KatieLG 🇬🇧 699 91 506ms 1 Sep 2024 514th flekAI 699 91 436ms 4 days ago 516th MeWhenI 🇻🇦 698 59 1,026ms 13 Jun 2025 517th Andrey2001 696 110 14ms 31 Jan 2026 518th prestosilver 🇺🇸 696 117 475ms 15 days ago 519th stefangimmillaro 695 90 2,318ms 14 Nov 2024 520th JDiLenarda 🇫🇷 695 170 1,554ms 3 Sep 2024 521st DialFrost 🇸🇬 692 118 81ms 22 Jun 2025 522nd JunkIce 691 92 561ms 3 Dec 2024 523rd aksyristos 690 111 13ms 1 Sep 2024 523rd wh3n3v3r 🇨🇿 690 111 12ms 11 Nov 2024 523rd AstroOrbis 690 111 10ms 30 Jun 2025 526th kaascevich 690 116 1,820ms 15 Sep 2025 527th GolfingSuccess 🇬🇷 689 131 2ms 1 Sep 2024 528th MeWhenI 🇻🇦 684 117 115ms 2 Sep 2024 528th stefangimmillaro 684 117 102ms 2 Sep 2024 530th DialFrost 🇸🇬 683 62 36ms 30 Jan 2025 531st error256 683 63 1,008ms 20 Dec 2025 532nd madex 🇩🇪 683 177 229ms 17 Sep 2024 533rd olleicua 🇺🇸 682 104 10ms 11 Sep 2024 533rd charliegaming 682 104 11ms 28 Nov 2024 535th BlankSpruce 680 158 61ms 1 Sep 2024 536th dcgjb 677 69 297ms 11 Sep 2024 537th chunes3 🇺🇸 675 112 64ms 1 Sep 2024 538th alicethecatwhisperermeow 674 132 464ms 14 Sep 2024 539th stefangimmillaro 673 63 35ms 2 Sep 2024 539th SirBogman 🇺🇸 673 63 36ms 5 Sep 2024 541st madeforlosers 669 106 11ms 23 Oct 2024 542nd DialFrost 🇸🇬 668 181 205ms 12 Apr 2025 543rd snoozingnewt 🇨🇦 668 194 44ms 3 days ago 544th voytxt 🇨🇿 667 93 162ms 17 Apr 2025 545th DialFrost 🇸🇬 666 96 99ms 28 Nov 2025 546th dokutan 665 79 195ms 3 Sep 2024 547th dokutan 663 107 11ms 5 Jun 2025 548th GolfingSuccess 🇬🇷 663 162 444ms 1 Sep 2024 548th ovs-code 🇩🇪 663 162 2,827ms 1 Sep 2024 550th albanian-laundromat 🇺🇸 662 189 44ms 14 Sep 2025 551st lukechampine 661 200 342ms 7 Jun 2025 551st jerrandolph 661 200 334ms 21 Sep 2025 553rd NickTheEASDude 🇺🇸 660 105 2ms 7 Oct 2025 554th LeoCh01 660 116 10ms 1 Sep 2024 555th msbranicky 660 136 3ms 1 Sep 2024 556th m-tkach 🇺🇦 660 169 29ms 9 Feb 2026 557th msbranicky 659 95 2,276ms 8 Jan 2025 558th Shanethegamer 🇺🇸 659 135 445ms 1 Sep 2024 559th AlephSquirrel 658 248 3ms 29 Sep 2024 560th Shanethegamer 🇺🇸 653 95 153ms 8 Jan 2025 First Prev 481–560 of 870 Next Last