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 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 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 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 Lily 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 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 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 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 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 400th Artemis21 🇬🇧 766 100 11ms 4 Jan 2025 402nd dokutan 764 83 456ms 3 Sep 2024 402nd lifthrasiir 🇰🇷 764 83 431ms 2 Dec 2024 402nd albanian-laundromat 764 83 461ms 4 Aug 2025 402nd CaedenHarper 🇨🇦 764 83 494ms 9 Aug 2025 406th CatsAreFluffy 763 64 49ms 4 Nov 2024 407th error256 762 116 122ms 2 Sep 2024 408th madex 🇩🇪 758 101 10ms 1 Sep 2024 408th RedzGoose 🇦🇺 758 101 10ms 15 Oct 2024 408th JunkIce 758 101 10ms 25 Oct 2024 411th kg583 🇺🇸 757 102 5ms 19 Dec 2025 412th Shanethegamer 🇺🇸 755 117 119ms 1 Sep 2024 413th sean-niemann 🇺🇸 755 118 3ms 16 Jan 2025 414th targrik 754 83 5ms 8 Feb 2025 415th stefangimmillaro 753 94 10ms 4 Sep 2024 416th DialFrost 🇸🇬 752 96 106ms 28 Nov 2025 416th snoozingnewt 🇨🇦 752 96 105ms 5 Dec 2025 418th sciencejiho 751 102 9ms 13 Sep 2024 418th Papushkado 751 102 10ms 10 Nov 2025 418th TheSecondComing123 751 102 10ms 15 days ago 421st DialFrost 🇸🇬 751 225 1,591ms 20 Jan 2025 422nd UnderKoen 🇳🇱 750 185 63ms 1 Dec 2025 423rd error256 748 226 1,578ms 28 Mar 2025 424th Shanethegamer 🇺🇸 745 95 11ms 1 Sep 2024 424th HumanoidCPU 745 95 11ms 29 Oct 2024 426th Mikey-Beep 🇬🇧 745 119 430ms 2 Sep 2024 427th julian-hoelz 743 103 10ms 16 Sep 2024 427th StefanHabel 🇨🇦 743 103 94ms 22 Mar 2025 429th pardouin 🇫🇷 741 87 90ms 3 Sep 2024 429th Steffan153 🇫🇮 741 87 74ms 8 days ago 431st MostParsingVex 741 164 70ms 6 Jan 2025 432nd xsot 🇸🇬 739 58 1,009ms 19 Dec 2025 433rd stefangimmillaro 739 169 43ms 3 Sep 2024 434th Shanethegamer 🇺🇸 737 71 233ms 1 Sep 2024 434th MarcMush 🇫🇷 737 71 536ms 16 Sep 2024 436th ComputerKWasTaken 🇺🇸 736 104 10ms 2 Sep 2024 436th elgan65536 🇺🇸 736 104 9ms 23 Sep 2024 436th NickTheEASDude 🇺🇸 736 104 10ms 7 Oct 2025 439th Shanethegamer 🇺🇸 735 105 4ms 1 Sep 2024 440th FlyingPenguin223 734 94 1ms 18 Sep 2024 441st DialFrost 🇸🇬 734 271 1,620ms 17 Jan 2026 442nd GolfingSuccess 🇬🇷 733 30 55ms 1 Sep 2024 442nd MeWhenI 🇻🇦 733 30 61ms 8 Jun 2025 442nd CaedenHarper 🇨🇦 733 30 45ms 1 Dec 2025 445th error256 733 121 430ms 24 Sep 2024 446th snoozingnewt 🇨🇦 731 110 88ms 22 Nov 2025 447th targrik 730 97 12ms 8 Feb 2025 448th Shanethegamer 🇺🇸 729 122 6ms 4 Oct 2024 449th albanian-laundromat 728 232 1,614ms 15 Oct 2025 450th emgordon154 726 63 1,252ms 18 Nov 2024 451st bitsandbeyond 🇳🇱 726 64 273ms 1 Dec 2025 452nd Shanethegamer 🇺🇸 726 95 2ms 2 Sep 2024 453rd CutSandstone 722 106 12ms 21 Dec 2024 454th janAkali 🇷🇺 722 112 341ms 7 days ago 455th GrayJoKing 🇦🇺 720 86 119ms 2 Sep 2024 456th Shanethegamer 🇺🇸 720 128 473ms 1 Sep 2024 457th dokutan 719 124 2ms 5 Sep 2024 458th Kacarott 🇦🇺 717 132 3ms 4 Sep 2024 459th kg583 🇺🇸 716 106 6ms 26 Sep 2025 460th galloj 🇨🇿 715 107 10ms 4 Sep 2024 460th FlorianCassayre 🇫🇷 715 107 10ms 9 Sep 2024 460th jared-hughes 715 107 10ms 10 Sep 2024 460th nstearns96 🇬🇧 715 107 9ms 13 Nov 2024 460th rchalamala 715 107 10ms 2 Jan 2025 460th brochmann 🇸🇪 715 107 9ms 16 Oct 2025 466th mykytamatiukha 714 168 232ms 15 Jan 2026 467th snyderek 🇺🇸 712 150 50ms 15 Sep 2024 468th JesseNoEyes 🇺🇸 709 108 10ms 30 Sep 2024 469th alexsave 708 100 11ms 22 Sep 2024 470th JDiLenarda 🇫🇷 708 170 1,518ms 3 Sep 2024 471st error256 705 97 15ms 14 Jan 2026 472nd HumanoidCPU 704 90 452ms 2 Sep 2024 473rd adriweb 🇫🇷 704 98 2ms 4 Sep 2024 473rd sean-niemann 🇺🇸 704 98 2ms 5 Sep 2024 473rd dokutan 704 98 2ms 14 Sep 2024 476th Shanethegamer 🇺🇸 704 114 107ms 2 Sep 2024 477th MeWhenI 🇻🇦 703 88 130ms 1 Sep 2024 477th error256 703 88 125ms 10 Sep 2024 479th DialFrost 🇸🇬 702 61 973ms 31 Aug 2025 479th Steffan153 🇫🇮 702 61 712ms 2 days ago First Prev 401–480 of 748 Next Last