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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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 601st RedzGoose 🇦🇺 553 145 100ms 9 Sep 2024 602nd dokutan 548 113 135ms 22 Oct 2024 603rd msbranicky 548 135 3ms 1 Sep 2024 604th alphafalfa 540 105 4ms 1 Nov 2024 605th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 606th mm1013g 538 142 10ms 2 Sep 2024 607th Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 608th snoozingnewt 🇺🇸 534 79 34ms 12 Oct 2025 609th albanian-laundromat 533 352 11ms 18 Sep 2025 610th trijin 529 118 4ms 5 Oct 2024 611th MostParsingVex 528 97 20ms 2 Oct 2024 612th Shanethegamer 🇺🇸 526 183 333ms 24 Sep 2025 613th pickerj 524 146 10ms 12 Sep 2024 614th tomh1012 523 169 346ms 17 Sep 2025 615th Misaka18520 520 206 383ms 14 Sep 2024 616th error256 515 134 2ms 24 Sep 2024 617th LostSyntax21 🇬🇧 513 149 10ms 2 Sep 2024 618th CaedenHarper 🇨🇦 512 188 349ms 3 Oct 2025 619th rboath 506 159 92ms 18 Dec 2024 620th h3ra993huskp 🇯🇵 504 191 316ms 27 Dec 2024 621st madex 🇩🇪 502 84 39ms 1 Sep 2024 622nd snoozingnewt 🇺🇸 502 141 9ms 12 Oct 2025 623rd dbut2 🇦🇺 502 261 267ms 3 Sep 2024 624th LukeBridges 🇬🇧 498 142 11ms 3 Sep 2024 625th snoozingnewt 🇺🇸 497 160 101ms 1 Sep 2024 626th MeWhenI 🇻🇦 496 181 2ms 13 Jun 2025 627th Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 628th HunterC14 493 155 9ms 21 Oct 2024 629th madex 🇩🇪 490 183 2ms 2 Sep 2024 630th Naitzirch 🇳🇱 484 158 10ms 3 Jul 2025 631st edsrzf 🇳🇿 479 110 9ms 12 days ago 632nd snoozingnewt 🇺🇸 478 185 356ms 4 Oct 2025 633rd rucin93 🇵🇱 476 251 238ms 5 Sep 2024 634th junkondo-jp 475 149 9ms 15 Dec 2024 635th snoozingnewt 🇺🇸 475 189 2ms 9 Oct 2025 636th KatieLG 🇬🇧 475 292 6ms 1 Sep 2024 637th janAkali 🇷🇺 470 171 335ms 17 May 2025 638th R4z0rX 465 152 9ms 1 Sep 2024 639th DialFrost 🇸🇬 465 207 337ms 24 Sep 2025 640th Apzyte-Gamer 463 165 9ms 28 Oct 2024 641st iczelia 🇩🇪 462 194 2ms 11 Oct 2025 642nd two-bad 🇬🇧 454 156 9ms 4 Oct 2024 643rd CyberTapir 452 169 9ms 1 Sep 2024 644th ravnskjaer 🇩🇰 450 214 313ms 11 Sep 2024 645th msbranicky 445 269 237ms 1 Sep 2024 646th rollershutter 434 176 10ms 18 Nov 2024 646th Yewzir 🇧🇪 434 176 10ms 14 days ago 648th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 649th Yax42 🇫🇷 430 224 353ms 5 Oct 2025 650th vhoulbreque 🇫🇷 422 146 174ms 18 days ago 651st aksyristos 418 101 35ms 17 Nov 2024 652nd MeWhenI 🇻🇦 412 260 72ms 13 Jun 2025 653rd bac0id 403 266 2,369ms 10 Jan 2025 654th Jacob385 401 240 313ms 4 Sep 2024 655th dokutan 398 155 246ms 1 Sep 2024 656th zakariamouhid 397 178 14ms 14 Sep 2024 657th galloj 🇨🇿 396 101 8ms 4 Sep 2024 658th mathisfun271 392 195 10ms 3 Oct 2024 659th varhammer 🇷🇺 389 235 9ms 20 Oct 2025 660th IISResetMe 366 127 340ms 17 Nov 2024 661st Giantnoodlemonster 365 246 2ms 27 Sep 2024 662nd MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 663rd Mikey-Beep 🇬🇧 354 193 19ms 13 Aug 2025 664th AidanWalter 346 221 9ms 3 Jan 2025 665th snoozingnewt 🇺🇸 331 186 8ms 1 Sep 2024 666th timhaj 🇸🇮 320 239 9ms 19 Sep 2024 667th snoozingnewt 🇺🇸 307 209 119ms 1 Sep 2024 668th nephila-nacrea 🇬🇧 283 132 4ms 4 Sep 2024 669th KatieLG 🇬🇧 262 459 1,339ms 15 Sep 2024 670th bidger 261 369 312ms 20 Sep 2024 671st KatieLG 🇬🇧 260 460 214ms 15 Sep 2024 672nd snoozingnewt 🇺🇸 241 444 963ms 6 Oct 2025 673rd KatieLG 🇬🇧 200 401 159ms 15 Sep 2024 674th KatieLG 🇬🇧 191 398 7ms 15 Sep 2024 675th KatieLG 🇬🇧 171 768 262ms 15 Sep 2024 First Prev 601–675 of 701 Next Last