PalindromemordnilaP in all languages in chars. 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 Dragon Curve 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 Dragon Curve 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 Chars Time Submitted 464th mateusz-sterczewski 687 91 10ms 15 Jan 2026 464th Matter1024 🇮🇳 687 91 12ms 31 Jan 2026 464th souta-1326 687 91 11ms 19 Feb 2026 484th MeWhenI 🇻🇦 686 88 127ms 1 Sep 2024 484th error256 686 88 129ms 10 Sep 2024 486th DialFrost 🇸🇬 683 62 40ms 30 Jan 2025 486th KatieLG 🇬🇧 683 62 40ms 2 Oct 2025 488th error256 682 63 1,191ms 20 Dec 2025 489th olleicua 🇺🇸 682 104 11ms 11 Sep 2024 490th MeWhenI 🇻🇦 682 117 114ms 2 Sep 2024 490th stefangimmillaro 682 117 103ms 2 Sep 2024 492nd madex 🇩🇪 681 177 226ms 17 Sep 2024 493rd dokutan 680 156 42ms 1 Sep 2024 494th fourth-bit 679 92 9ms 4 Sep 2024 494th bnic24 679 92 10ms 5 Sep 2024 494th Jakob-L-M 679 92 11ms 8 days ago 497th BlankSpruce 678 158 64ms 1 Sep 2024 498th dcgjb 677 69 290ms 11 Sep 2024 499th chunes3 🇺🇸 675 112 64ms 1 Sep 2024 500th alicethecatwhisperermeow 673 132 451ms 14 Sep 2024 501st stefangimmillaro 672 63 44ms 2 Sep 2024 501st SirBogman 🇺🇸 672 63 39ms 5 Sep 2024 503rd adamnielson42 🇺🇸 672 93 13ms 7 Oct 2024 503rd smiksky 🇺🇸 672 93 10ms 16 Oct 2024 503rd guilhem-roy 🇫🇷 672 93 10ms 31 May 2025 506th madeforlosers 669 106 10ms 23 Oct 2024 507th DialFrost 🇸🇬 666 96 99ms 28 Nov 2025 508th DialFrost 🇸🇬 666 181 198ms 12 Apr 2025 509th mousetail 🇳🇱 665 94 13ms 1 Sep 2024 509th ljweel 665 94 11ms 12 Sep 2024 511th Shanethegamer 🇺🇸 663 91 140ms 5 Sep 2024 512th dokutan 662 64 48ms 23 Feb 2025 513th GolfingSuccess 🇬🇷 662 162 448ms 1 Sep 2024 513th ovs-code 🇩🇪 662 162 2,842ms 1 Sep 2024 515th snoozingnewt 🇨🇦 662 194 44ms 11 days ago 516th msbranicky 660 136 3ms 1 Sep 2024 517th m-tkach 🇺🇦 660 169 29ms 9 Feb 2026 518th msbranicky 659 95 2,679ms 8 Jan 2025 519th NickTheEASDude 🇺🇸 659 105 2ms 7 Oct 2025 520th lukechampine 659 200 342ms 7 Jun 2025 520th jerrandolph 659 200 334ms 21 Sep 2025 522nd msbranicky 658 95 11ms 1 Sep 2024 522nd Bulmenisaurus 658 95 12ms 4 Sep 2024 522nd btjones0 658 95 10ms 13 Sep 2024 522nd jfallon1997 658 95 10ms 26 Sep 2024 522nd jacekwladzinski 658 95 10ms 7 Oct 2025 522nd aalec 658 95 10ms 8 Nov 2025 528th Shanethegamer 🇺🇸 658 135 460ms 1 Sep 2024 529th AlephSquirrel 658 248 3ms 29 Sep 2024 530th jusaka 654 89 423ms 8 days ago 531st TFeld00 🇩🇰 651 65 39ms 3 Sep 2024 532nd dokutan 651 78 202ms 3 Sep 2024 533rd fgrosshans 🇫🇷 651 96 10ms 1 Sep 2024 533rd mm1013g 651 96 12ms 2 Sep 2024 533rd Mikey-Beep 🇬🇧 651 96 10ms 2 Sep 2024 533rd JudeTyrrell 651 96 13ms 22 Sep 2024 537th ShiraJoseph 🇺🇸 651 109 11ms 22 Sep 2024 538th albanian-laundromat 🇺🇸 650 189 44ms 14 Sep 2025 539th msbranicky 650 203 333ms 1 Sep 2024 540th voytxt 🇨🇿 649 93 138ms 17 Apr 2025 541st stefangimmillaro 647 151 528ms 6 Oct 2025 542nd stefangimmillaro 646 71 1,623ms 3 Sep 2024 543rd Waffle3z 646 107 2ms 2 Oct 2024 544th Chinay-Domitrix 🇺🇸 645 97 2,369ms 14 Mar 2026 545th mrxz 🇳🇱 645 110 11ms 22 Sep 2024 545th weliveinhell 🇭🇹 645 110 10ms 28 Sep 2024 547th Carlettos1 644 97 13ms 14 Sep 2024 548th BlankSpruce 644 140 2ms 1 Sep 2024 549th aDwarfNamedUrist 642 138 118ms 4 Sep 2024 550th stefangimmillaro 641 188 209ms 4 Jun 2025 551st SirBogman 🇺🇸 640 73 288ms 23 Jul 2025 552nd Ripick 639 127 433ms 6 Sep 2024 553rd pickerj 638 98 12ms 13 Sep 2024 553rd dtbao20 🇻🇳 638 98 22ms 30 Sep 2024 553rd YAJUE114514 638 98 10ms 30 Jul 2025 553rd netfri25 🇮🇱 638 98 10ms 22 Feb 2026 553rd rotemkm 638 98 11ms 22 Feb 2026 558th Shanethegamer 🇺🇸 637 72 1,553ms 1 Sep 2024 558th anter69 🇭🇺 637 72 1,643ms 25 Oct 2024 560th weeble 637 77 7ms 21 Dec 2025 First Prev 481–560 of 839 Next Last