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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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 641st tomh1012 562 126 11ms 18 Sep 2025 642nd MostParsingVex 562 160 33ms 30 Sep 2024 643rd dokutan 561 132 3ms 1 Sep 2024 644th Stockoh 🇫🇷 559 137 11ms 17 Oct 2024 645th emgordon154 559 138 11ms 1 Jan 2025 646th RedzGoose 🇦🇺 557 145 113ms 9 Sep 2024 647th brimstonetrader 555 138 10ms 17 Oct 2024 648th msbranicky 548 135 3ms 1 Sep 2024 649th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 650th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 651st mm1013g 539 142 10ms 2 Sep 2024 652nd dokutan 539 155 242ms 1 Sep 2024 653rd Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 654th snoozingnewt 🇨🇦 535 79 34ms 12 Oct 2025 655th albanian-laundromat 533 352 11ms 18 Sep 2025 656th trijin 532 118 4ms 5 Oct 2024 657th Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 658th AstroOrbis 525 145 8ms 2 days ago 659th tomh1012 525 169 457ms 17 Sep 2025 660th pickerj 524 146 11ms 12 Sep 2024 661st ravnskjaer 🇩🇰 523 186 478ms 15 Dec 2025 662nd CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 663rd error256 515 134 2ms 24 Sep 2024 664th Shanethegamer 🇺🇸 512 141 147ms 4 Dec 2025 665th rboath 506 159 109ms 18 Dec 2024 666th dbut2 🇦🇺 504 261 291ms 3 Sep 2024 667th madex 🇩🇪 503 84 36ms 1 Sep 2024 668th snoozingnewt 🇨🇦 502 141 10ms 12 Oct 2025 669th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 670th MeWhenI 🇻🇦 498 86 919ms 15 Sep 2025 671st snoozingnewt 🇨🇦 497 160 101ms 1 Sep 2024 672nd MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 673rd HunterC14 494 155 10ms 21 Oct 2024 674th mateusz-sterczewski 492 86 36ms 15 Jan 2026 675th madex 🇩🇪 491 183 2ms 2 Sep 2024 676th codewrite 🇬🇧 490 181 433ms 30 Dec 2025 677th Naitzirch 🇳🇱 485 158 10ms 3 Jul 2025 678th alphafalfa 480 105 4ms 1 Nov 2024 679th snoozingnewt 🇨🇦 479 185 441ms 4 Oct 2025 680th rucin93 🇵🇱 478 251 235ms 5 Sep 2024 681st snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 682nd junkondo-jp 475 149 10ms 15 Dec 2024 683rd KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 684th DialFrost 🇸🇬 470 207 566ms 24 Sep 2025 685th R4z0rX 466 152 11ms 1 Sep 2024 686th Apzyte-Gamer 464 165 10ms 28 Oct 2024 687th iczelia 🇩🇪 463 194 2ms 11 Oct 2025 688th two-bad 🇬🇧 454 156 9ms 4 Oct 2024 689th CyberTapir 453 169 10ms 1 Sep 2024 690th JOrE20 453 268 28ms 16 days ago 691st snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 692nd msbranicky 446 269 231ms 1 Sep 2024 693rd IISResetMe 439 106 391ms 3 Jan 2026 694th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 695th rollershutter 435 176 10ms 18 Nov 2024 696th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 697th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 698th Yewzir 🇧🇪 428 179 11ms 1 Dec 2025 699th aksyristos 419 101 36ms 17 Nov 2024 700th amazingalek 🇳🇴 411 216 405ms 26 Jan 2026 701st MeWhenI 🇻🇦 411 260 79ms 13 Jun 2025 702nd Jacob385 406 240 393ms 4 Sep 2024 703rd bac0id 402 266 2,905ms 10 Jan 2025 704th zakariamouhid 398 178 12ms 14 Sep 2024 705th galloj 🇨🇿 396 101 10ms 4 Sep 2024 706th varhammer 🇷🇺 379 235 8ms 20 Oct 2025 707th Yewzir 🇧🇪 371 171 620ms 1 Dec 2025 708th nemoyatpeace 368 208 10ms 16 Jan 2026 709th Giantnoodlemonster 365 246 2ms 27 Sep 2024 710th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 711th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 712th AidanWalter 346 221 10ms 3 Jan 2025 713th Imsmelkov 327 298 448ms 22 Jan 2026 714th timhaj 🇸🇮 320 239 11ms 19 Sep 2024 715th dokutan 310 261 120ms 19 hours ago 716th snoozingnewt 🇨🇦 308 209 133ms 1 Sep 2024 717th dokutan 307 396 1,343ms 19 hours ago 718th nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 719th KatieLG 🇬🇧 265 459 1,383ms 15 Sep 2024 720th bidger 264 369 410ms 20 Sep 2024 First Prev 641–720 of 759 Next Last