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 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 Chars Time Submitted 462nd souta-1326 687 91 11ms 19 Feb 2026 462nd flekAI 687 91 11ms 3 days ago 483rd MeWhenI 🇻🇦 686 88 142ms 1 Sep 2024 483rd error256 686 88 148ms 10 Sep 2024 485th MeWhenI 🇻🇦 684 117 115ms 2 Sep 2024 485th stefangimmillaro 684 117 102ms 2 Sep 2024 487th dokutan 684 156 42ms 1 Sep 2024 488th DialFrost 🇸🇬 683 62 36ms 30 Jan 2025 488th KatieLG 🇬🇧 683 62 38ms 2 Oct 2025 490th error256 683 63 1,008ms 20 Dec 2025 491st madex 🇩🇪 683 177 229ms 17 Sep 2024 492nd olleicua 🇺🇸 682 104 10ms 11 Sep 2024 493rd BlankSpruce 680 158 61ms 1 Sep 2024 494th fourth-bit 679 92 9ms 4 Sep 2024 494th bnic24 679 92 10ms 5 Sep 2024 496th dcgjb 677 69 297ms 11 Sep 2024 497th chunes3 🇺🇸 675 112 64ms 1 Sep 2024 498th alicethecatwhisperermeow 674 132 464ms 14 Sep 2024 499th stefangimmillaro 673 63 35ms 2 Sep 2024 499th SirBogman 🇺🇸 673 63 36ms 5 Sep 2024 501st adamnielson42 🇺🇸 672 93 13ms 7 Oct 2024 501st smiksky 🇺🇸 672 93 10ms 16 Oct 2024 501st guilhem-roy 🇫🇷 672 93 10ms 31 May 2025 504th madeforlosers 669 106 11ms 23 Oct 2024 505th DialFrost 🇸🇬 668 181 205ms 12 Apr 2025 506th snoozingnewt 🇨🇦 668 194 44ms 3 days ago 507th DialFrost 🇸🇬 666 96 99ms 28 Nov 2025 508th mousetail 🇳🇱 665 94 13ms 1 Sep 2024 508th ljweel 665 94 11ms 12 Sep 2024 510th Shanethegamer 🇺🇸 663 91 153ms 5 Sep 2024 511th GolfingSuccess 🇬🇷 663 162 444ms 1 Sep 2024 511th ovs-code 🇩🇪 663 162 2,827ms 1 Sep 2024 513th dokutan 662 64 39ms 23 Feb 2025 514th albanian-laundromat 🇺🇸 662 189 44ms 14 Sep 2025 515th lukechampine 661 200 342ms 7 Jun 2025 515th jerrandolph 661 200 334ms 21 Sep 2025 517th NickTheEASDude 🇺🇸 660 105 2ms 7 Oct 2025 518th msbranicky 660 136 3ms 1 Sep 2024 519th m-tkach 🇺🇦 660 169 29ms 9 Feb 2026 520th msbranicky 659 95 2,276ms 8 Jan 2025 521st Shanethegamer 🇺🇸 659 135 445ms 1 Sep 2024 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 AlephSquirrel 658 248 3ms 29 Sep 2024 529th jusaka 655 89 423ms 7 hours ago 530th TFeld00 🇩🇰 652 65 34ms 3 Sep 2024 531st dokutan 652 78 210ms 3 Sep 2024 532nd fgrosshans 🇫🇷 651 96 10ms 1 Sep 2024 532nd mm1013g 651 96 12ms 2 Sep 2024 532nd Mikey-Beep 🇬🇧 651 96 10ms 2 Sep 2024 532nd JudeTyrrell 651 96 13ms 22 Sep 2024 536th ShiraJoseph 🇺🇸 651 109 10ms 22 Sep 2024 537th msbranicky 651 203 333ms 1 Sep 2024 538th voytxt 🇨🇿 649 93 162ms 17 Apr 2025 539th stefangimmillaro 647 71 1,320ms 3 Sep 2024 540th Waffle3z 647 107 2ms 2 Oct 2024 541st stefangimmillaro 647 151 494ms 6 Oct 2025 542nd Chinay-Domitrix 🇺🇸 645 97 2,358ms 14 Mar 2026 543rd mrxz 🇳🇱 645 110 11ms 22 Sep 2024 543rd weliveinhell 🇭🇹 645 110 10ms 28 Sep 2024 545th BlankSpruce 645 140 2ms 1 Sep 2024 546th Carlettos1 644 97 13ms 14 Sep 2024 547th stefangimmillaro 643 188 215ms 4 Jun 2025 548th Ripick 642 127 387ms 6 Sep 2024 549th aDwarfNamedUrist 642 138 118ms 4 Sep 2024 550th SirBogman 🇺🇸 640 73 284ms 23 Jul 2025 551st flekAI 640 91 436ms 3 days ago 552nd Shanethegamer 🇺🇸 638 72 1,301ms 1 Sep 2024 552nd anter69 🇭🇺 638 72 1,291ms 25 Oct 2024 554th pickerj 638 98 12ms 13 Sep 2024 554th dtbao20 🇻🇳 638 98 22ms 30 Sep 2024 554th YAJUE114514 638 98 10ms 30 Jul 2025 554th netfri25 🇮🇱 638 98 10ms 22 Feb 2026 554th rotemkm 638 98 11ms 22 Feb 2026 559th cthierfelder 🇲🇨 638 193 75ms 5 Sep 2025 560th weeble 637 77 7ms 21 Dec 2025 First Prev 481–560 of 864 Next Last