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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Nim 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 598th tatzyr 🇯🇵 623 68 45ms 10 Oct 2025 602nd DialFrost 🇸🇬 623 111 1ms 22 Nov 2024 603rd eddvrs 623 123 10ms 29 Sep 2024 604th albanian-laundromat 🇺🇸 622 69 712ms 12 Sep 2025 605th KrausRaus 🇺🇸 622 114 12ms 1 Sep 2024 605th JOrE20 622 114 10ms 21 Feb 2026 607th yokasuretsu 618 124 10ms 10 Jul 2025 607th hamilton-bonds 618 124 10ms 24 Jul 2025 607th robin-scragg 618 124 14ms 18 Oct 2025 610th lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 611th Andrey-Plotnikov 617 115 10ms 30 Sep 2025 612th aliakseikalosha 617 144 439ms 5 Sep 2024 613th KatieLG 🇬🇧 614 69 46ms 1 Sep 2024 614th Shanethegamer 🇺🇸 613 102 2,800ms 25 Oct 2024 614th dokutan 613 102 2,809ms 26 Oct 2024 616th Natanaelel 🇸🇪 613 112 14ms 15 May 2025 617th BambooleanLogic 🇸🇪 611 116 10ms 19 Nov 2024 617th acollett89 611 116 10ms 4 Aug 2025 619th msbranicky 610 86 170ms 16 Sep 2024 620th nhausspiegel 608 126 13ms 13 Sep 2024 621st Shanethegamer 🇺🇸 606 107 83ms 1 Sep 2024 622nd Shanethegamer 🇺🇸 606 134 439ms 1 Sep 2024 623rd CaedenHarper 🇨🇦 605 71 674ms 27 Sep 2025 624th Arkadios200 605 132 103ms 11 Oct 2025 625th dokutan 604 147 461ms 3 Nov 2024 626th dokutan 603 76 1,640ms 3 Sep 2024 627th matsagad 603 127 10ms 16 Jan 2025 628th emgordon154 602 128 12ms 20 Mar 2026 629th mamamia5x 601 118 11ms 12 Sep 2024 629th scpchicken 🇵🇼 601 118 11ms 4 days ago 631st inventshah 601 150 2ms 1 Sep 2024 632nd BREMAUCY 🇫🇷 601 316 12ms 7 Aug 2025 633rd mousetail 🇳🇱 599 105 5ms 3 Sep 2024 634th xyangst 599 128 11ms 12 Oct 2024 634th 123mjb 599 128 10ms 19 Nov 2025 636th h3ra993huskp 🇯🇵 599 163 475ms 30 Nov 2025 637th MeWhenI 🇻🇦 599 177 40ms 4 Sep 2024 637th Shanethegamer 🇺🇸 599 177 44ms 4 Sep 2024 639th emgordon154 596 104 136ms 14 Nov 2024 640th CaedenHarper 🇨🇦 596 149 445ms 16 Oct 2025 641st KatieLG 🇬🇧 595 77 1,602ms 1 Sep 2024 642nd KatieLG 🇬🇧 591 135 103ms 21 Nov 2025 643rd luuumine 🇫🇷 591 204 211ms 18 Nov 2025 644th DialFrost 🇸🇬 588 107 6ms 1 Sep 2024 645th cbrt-x 586 151 121ms 11 Sep 2024 646th dokutan 586 181 41ms 1 Sep 2024 647th Mabeloid 🇳🇴 583 109 569ms 17 Sep 2024 648th snoozingnewt 🇨🇦 583 226 326ms 1 Sep 2024 649th muser-logiccpu 🇺🇦 581 119 2ms 23 Jul 2025 650th GeorgeStechman 🇬🇧 581 122 11ms 5 Nov 2024 650th gigaprofisi 🇺🇸 581 122 10ms 10 Aug 2025 652nd dokutan 580 107 159ms 14 Feb 2026 653rd JohandeRuiter 🇳🇱 578 156 2ms 2 Sep 2024 654th xyangst 577 123 11ms 15 Oct 2024 655th vhoulbreque 🇫🇷 577 146 182ms 11 Nov 2025 656th emgordon154 575 133 13ms 16 Dec 2024 657th dokutan 573 75 742ms 29 Aug 2025 658th dokutan 572 74 42ms 20 Feb 2025 659th dokutan 569 132 3ms 1 Sep 2024 660th TeodorDyakov 🇧🇬 567 159 2ms 6 Sep 2025 661st emgordon154 566 113 111ms 4 Dec 2025 662nd TheZwierzLF 🇵🇱 565 75 39ms 27 Dec 2025 663rd HumanoidCPU 564 110 132ms 22 Nov 2025 664th tomh1012 563 126 11ms 18 Sep 2025 665th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 666th MostParsingVex 563 160 27ms 30 Sep 2024 667th RedzGoose 🇦🇺 560 145 108ms 9 Sep 2024 668th Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 669th msbranicky 556 135 3ms 1 Sep 2024 670th brimstonetrader 555 138 11ms 17 Oct 2024 671st jusaka 550 40 40ms 11 days ago 672nd dokutan 544 155 220ms 1 Sep 2024 673rd jusaka 543 163 132ms 10 days ago 674th DialFrost 🇸🇬 542 76 17ms 1 Aug 2025 675th Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 676th KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 677th mm1013g 540 142 10ms 2 Sep 2024 678th albanian-laundromat 🇺🇸 540 352 11ms 18 Sep 2025 679th Shanethegamer 🇺🇸 539 91 22ms 1 Sep 2024 680th snoozingnewt 🇨🇦 536 79 47ms 12 Oct 2025 681st Shanethegamer 🇺🇸 534 183 480ms 24 Sep 2025 682nd trijin 533 118 5ms 5 Oct 2024 683rd AstroOrbis 527 145 6ms 25 Feb 2026 684th tomh1012 526 169 407ms 17 Sep 2025 685th pickerj 525 146 11ms 12 Sep 2024 686th ravnskjaer 🇩🇰 525 186 507ms 15 Dec 2025 687th jusaka 521 422 1,725ms 11 days ago 688th CaedenHarper 🇨🇦 520 188 461ms 3 Oct 2025 689th error256 516 134 2ms 24 Sep 2024 690th dokutan 513 174 12ms 28 Feb 2026 691st rboath 510 159 105ms 18 Dec 2024 692nd dbut2 🇦🇺 505 261 337ms 3 Sep 2024 693rd snoozingnewt 🇨🇦 503 141 10ms 12 Oct 2025 694th MeWhenI 🇻🇦 499 86 728ms 15 Sep 2025 695th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 696th snoozingnewt 🇨🇦 499 160 111ms 1 Sep 2024 697th MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 698th rucin93 🇵🇱 494 152 3ms 19 days ago 699th HunterC14 494 155 12ms 21 Oct 2024 700th mateusz-sterczewski 492 86 40ms 15 Jan 2026 First Prev 601–700 of 845 Next Last