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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 Huffman Encoder 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 Huffman Encoder 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 🇯🇵 622 68 45ms 10 Oct 2025 602nd DialFrost 🇸🇬 622 111 1ms 22 Nov 2024 603rd KrausRaus 🇺🇸 622 114 12ms 1 Sep 2024 603rd JOrE20 622 114 10ms 21 Feb 2026 605th albanian-laundromat 🇺🇸 621 69 712ms 12 Sep 2025 606th yokasuretsu 618 124 10ms 10 Jul 2025 606th hamilton-bonds 618 124 10ms 24 Jul 2025 606th robin-scragg 618 124 14ms 18 Oct 2025 609th lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 610th Andrey-Plotnikov 616 115 10ms 30 Sep 2025 611th aliakseikalosha 616 144 439ms 5 Sep 2024 612th KatieLG 🇬🇧 613 69 46ms 1 Sep 2024 613th Shanethegamer 🇺🇸 612 102 2,763ms 25 Oct 2024 613th dokutan 612 102 2,751ms 26 Oct 2024 615th Natanaelel 🇸🇪 611 112 14ms 15 May 2025 616th BambooleanLogic 🇸🇪 611 116 10ms 19 Nov 2024 616th acollett89 611 116 10ms 4 Aug 2025 618th msbranicky 608 86 170ms 16 Sep 2024 619th nhausspiegel 608 126 13ms 13 Sep 2024 620th CaedenHarper 🇨🇦 603 71 674ms 27 Sep 2025 621st matsagad 603 127 10ms 16 Jan 2025 622nd Shanethegamer 🇺🇸 603 134 439ms 1 Sep 2024 623rd dokutan 603 147 461ms 3 Nov 2024 624th dokutan 602 76 1,255ms 3 Sep 2024 625th Shanethegamer 🇺🇸 602 107 83ms 1 Sep 2024 626th Arkadios200 602 132 103ms 11 Oct 2025 627th mamamia5x 601 118 11ms 12 Sep 2024 627th scpchicken 🇵🇼 601 118 11ms 7 days ago 629th xyangst 599 128 11ms 12 Oct 2024 629th 123mjb 599 128 10ms 19 Nov 2025 631st inventshah 599 150 2ms 1 Sep 2024 632nd h3ra993huskp 🇯🇵 598 163 475ms 30 Nov 2025 633rd mousetail 🇳🇱 597 105 5ms 3 Sep 2024 634th emgordon154 597 128 12ms 20 Mar 2026 635th emgordon154 595 104 136ms 14 Nov 2024 636th CaedenHarper 🇨🇦 595 149 445ms 16 Oct 2025 637th MeWhenI 🇻🇦 595 177 40ms 4 Sep 2024 637th Shanethegamer 🇺🇸 595 177 44ms 4 Sep 2024 639th KatieLG 🇬🇧 594 77 1,326ms 1 Sep 2024 640th BREMAUCY 🇫🇷 594 316 12ms 7 Aug 2025 641st luuumine 🇫🇷 590 204 211ms 18 Nov 2025 642nd KatieLG 🇬🇧 589 135 103ms 21 Nov 2025 643rd DialFrost 🇸🇬 586 107 6ms 1 Sep 2024 644th cbrt-x 585 151 121ms 11 Sep 2024 645th Mabeloid 🇳🇴 582 109 569ms 17 Sep 2024 646th dokutan 582 181 41ms 1 Sep 2024 647th snoozingnewt 🇨🇦 582 226 326ms 1 Sep 2024 648th GeorgeStechman 🇬🇧 581 122 11ms 5 Nov 2024 648th gigaprofisi 🇺🇸 581 122 10ms 10 Aug 2025 650th muser-logiccpu 🇺🇦 580 119 2ms 23 Jul 2025 651st dokutan 578 107 159ms 14 Feb 2026 652nd xyangst 576 123 11ms 15 Oct 2024 653rd JohandeRuiter 🇳🇱 576 156 2ms 2 Sep 2024 654th emgordon154 573 133 13ms 16 Dec 2024 655th vhoulbreque 🇫🇷 573 146 182ms 11 Nov 2025 656th dokutan 572 74 42ms 20 Feb 2025 657th dokutan 571 75 742ms 29 Aug 2025 658th dokutan 565 132 3ms 1 Sep 2024 659th TeodorDyakov 🇧🇬 565 159 2ms 6 Sep 2025 660th TheZwierzLF 🇵🇱 564 75 39ms 27 Dec 2025 661st HumanoidCPU 563 110 132ms 22 Nov 2025 662nd emgordon154 563 113 111ms 4 Dec 2025 663rd tomh1012 563 126 11ms 18 Sep 2025 664th smiksky 🇺🇸 563 136 10ms 16 Oct 2024 665th MostParsingVex 562 160 27ms 30 Sep 2024 666th Stockoh 🇫🇷 559 137 10ms 17 Oct 2024 667th RedzGoose 🇦🇺 557 145 108ms 9 Sep 2024 668th brimstonetrader 555 138 11ms 17 Oct 2024 669th msbranicky 552 135 3ms 1 Sep 2024 670th mm1013g 540 142 10ms 2 Sep 2024 671st DialFrost 🇸🇬 539 76 17ms 1 Aug 2025 672nd KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 673rd dokutan 539 155 220ms 1 Sep 2024 674th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 675th snoozingnewt 🇨🇦 536 79 47ms 12 Oct 2025 676th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 677th Shanethegamer 🇺🇸 533 183 480ms 24 Sep 2025 678th albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 679th trijin 532 118 5ms 5 Oct 2024 680th AstroOrbis 525 145 6ms 25 Feb 2026 681st pickerj 525 146 11ms 12 Sep 2024 682nd tomh1012 525 169 407ms 17 Sep 2025 683rd ravnskjaer 🇩🇰 524 186 507ms 15 Dec 2025 684th CaedenHarper 🇨🇦 519 188 461ms 3 Oct 2025 685th error256 515 134 2ms 24 Sep 2024 686th dokutan 507 174 9ms 28 Feb 2026 687th rboath 506 159 105ms 18 Dec 2024 688th dbut2 🇦🇺 504 261 337ms 3 Sep 2024 689th snoozingnewt 🇨🇦 503 141 10ms 12 Oct 2025 690th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 691st MeWhenI 🇻🇦 498 86 728ms 15 Sep 2025 692nd snoozingnewt 🇨🇦 497 160 111ms 1 Sep 2024 693rd MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 694th HunterC14 494 155 12ms 21 Oct 2024 695th mateusz-sterczewski 492 86 40ms 15 Jan 2026 696th rucin93 🇵🇱 491 152 2ms 22 days ago 697th madex 🇩🇪 491 183 2ms 2 Sep 2024 698th codewrite 🇬🇧 490 181 492ms 30 Dec 2025 699th Naitzirch 🇳🇱 485 158 11ms 3 Jul 2025 700th alphafalfa 480 105 4ms 1 Nov 2024 First Prev 601–700 of 784 Next Last