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 149th 40fied4t 880 87 10ms 6 May 2025 149th ryyyn 🇺🇸 880 87 11ms 10 Jun 2025 149th commandz0 🇺🇸 880 87 10ms 11 Jul 2025 149th hiichbindermax 880 87 10ms 19 Aug 2025 149th Babafaba 880 87 11ms 22 Oct 2025 149th blaztoma 🇱🇹 880 87 10ms 11 Jan 2026 149th Lv0Sys 🇵🇱 880 87 11ms 22 Feb 2026 168th GrayJoKing 🇦🇺 879 60 12ms 3 Sep 2024 168th error256 879 60 12ms 3 Sep 2024 168th edsrzf 🇳🇿 879 60 12ms 1 Dec 2025 171st JayXon 🇺🇸 879 71 2,318ms 8 Nov 2024 171st pardouin 🇫🇷 879 71 2,555ms 17 Nov 2024 173rd JayXon 🇺🇸 878 137 224ms 10 Jul 2025 173rd acotis 878 137 238ms 24 Sep 2025 175th IanUtley 877 78 15ms 1 Sep 2024 175th kops-cg 877 78 15ms 6 Mar 2025 177th ashtraypettingzoo 🇺🇸 876 29 2ms 1 Sep 2024 177th GolfingSuccess 🇬🇷 876 29 3ms 25 Mar 2025 179th JayXon 🇺🇸 876 122 432ms 18 Sep 2024 180th GolfingSuccess 🇬🇷 875 48 5ms 13 Dec 2024 180th MeWhenI 🇻🇦 875 48 5ms 31 Dec 2024 182nd emplv 🇱🇻 875 81 10ms 16 Sep 2024 182nd vlpx 🇫🇮 875 81 10ms 23 Sep 2024 182nd lukegustafson 🇺🇸 875 81 11ms 26 May 2025 185th error256 875 87 6ms 16 Apr 2025 185th edsrzf 🇳🇿 875 87 7ms 1 Dec 2025 187th JayXon 🇺🇸 874 91 110ms 10 Sep 2024 188th AdrienHache 🇫🇷 872 56 54ms 3 Dec 2025 189th alemelis 872 60 286ms 1 Sep 2024 190th pardouin 🇫🇷 872 71 155ms 17 Apr 2025 191st error256 872 73 129ms 28 Feb 2026 192nd edsrzf 🇳🇿 871 72 6ms 31 Jan 2026 193rd error256 871 74 74ms 6 Sep 2024 194th JayXon 🇺🇸 871 151 335ms 10 Sep 2024 194th nwellnhof 🇩🇪 871 151 330ms 10 Sep 2024 194th 0xjac 🇨🇭 871 151 332ms 25 Nov 2025 197th AlephSquirrel 870 88 137ms 1 Sep 2024 197th ahmetdemirag 🇨🇾 870 88 9ms 3 Sep 2024 197th anter69 🇭🇺 870 88 10ms 3 Sep 2024 197th hellwue 870 88 11ms 4 Sep 2024 197th Schreipfelerer 870 88 11ms 11 Sep 2024 197th abhishekg999 870 88 11ms 17 Sep 2024 197th bob-th 870 88 10ms 17 Sep 2024 197th InigoK 🇺🇸 870 88 10ms 18 Sep 2024 197th moustave 870 88 11ms 24 Oct 2024 197th andrewjc2000 870 88 9ms 10 Mar 2025 197th KasperKivimaeki 🇫🇮 870 88 21ms 19 Feb 2026 208th xsot 🇸🇬 869 58 8ms 19 Dec 2025 209th error256 869 93 535ms 24 Jul 2025 210th error256 869 112 467ms 24 Sep 2025 210th sean-niemann 🇺🇸 869 112 480ms 24 Sep 2025 210th MeWhenI 🇻🇦 869 112 441ms 7 Nov 2025 210th Steffan153 🇫🇮 869 112 383ms 11 Feb 2026 214th error256 867 72 2,345ms 24 Oct 2024 215th sean-niemann 🇺🇸 866 88 7ms 16 Aug 2025 216th Frowny 865 35 33ms 1 Sep 2024 216th Natanaelel 🇸🇪 865 35 32ms 1 Sep 2024 216th 4hg 🇺🇸 865 35 33ms 5 Sep 2024 219th kumavale 865 139 240ms 28 Oct 2025 220th voytxt 🇨🇿 864 82 10ms 1 Sep 2024 220th dmrichwa 🇺🇸 864 82 10ms 2 Sep 2024 220th Lv0Sys 🇵🇱 864 82 10ms 22 Feb 2026 223rd JayXon 🇺🇸 863 53 1,366ms 2 Sep 2024 223rd pardouin 🇫🇷 863 53 1,384ms 4 Sep 2025 225th GrayJoKing 🇦🇺 861 57 6ms 20 Mar 2025 226th OllieBoyne 🇬🇧 861 89 11ms 9 Sep 2024 226th davecame 861 89 10ms 17 Sep 2024 226th Bmrl7 861 89 11ms 3 Oct 2024 226th DialFrost 🇸🇬 861 89 12ms 21 Nov 2024 226th CommandLeo 🇮🇹 861 89 10ms 27 Nov 2025 226th firegene 🇮🇪 861 89 13ms 3 Feb 2026 226th ThijsLuttikhuis 861 89 10ms 19 days ago 233rd JayXon 🇺🇸 860 94 530ms 23 Jul 2025 234th JayXon 🇺🇸 859 94 118ms 10 Sep 2024 235th MeWhenI 🇻🇦 858 57 6ms 1 Sep 2024 236th duckyluuk 🇳🇱 858 74 416ms 1 Sep 2024 237th DialFrost 🇸🇬 858 103 122ms 21 Nov 2024 238th duckyluuk 🇳🇱 857 49 6ms 26 Nov 2025 239th ovs-code 🇩🇪 857 61 279ms 1 Sep 2024 240th JayXon 🇺🇸 857 87 2ms 20 Sep 2024 First Prev 161–240 of 776 Next Last