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 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 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 Erlang 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 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 Erlang 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 Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 601st mm1013g 538 142 10ms 2 Sep 2024 602nd Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 603rd snoozingnewt 🇺🇸 534 79 34ms 12 Oct 2025 604th albanian-laundromat 533 352 11ms 18 Sep 2025 605th trijin 529 118 4ms 5 Oct 2024 606th MostParsingVex 528 97 20ms 2 Oct 2024 607th Shanethegamer 🇺🇸 526 183 333ms 24 Sep 2025 608th pickerj 524 146 10ms 12 Sep 2024 609th tomh1012 523 169 346ms 17 Sep 2025 610th Misaka18520 520 206 388ms 14 Sep 2024 611th error256 515 134 2ms 24 Sep 2024 612th LostSyntax21 🇬🇧 513 149 10ms 2 Sep 2024 613th CaedenHarper 🇨🇦 512 188 349ms 3 Oct 2025 614th rboath 506 159 92ms 18 Dec 2024 615th h3ra993huskp 🇯🇵 504 191 316ms 27 Dec 2024 616th madex 🇩🇪 502 84 39ms 1 Sep 2024 617th snoozingnewt 🇺🇸 502 141 9ms 12 Oct 2025 618th dbut2 🇦🇺 502 261 267ms 3 Sep 2024 619th LukeBridges 🇬🇧 498 142 11ms 3 Sep 2024 620th snoozingnewt 🇺🇸 497 160 101ms 1 Sep 2024 621st MeWhenI 🇻🇦 496 181 2ms 13 Jun 2025 622nd Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 623rd HunterC14 493 155 9ms 21 Oct 2024 624th madex 🇩🇪 490 183 2ms 2 Sep 2024 625th Naitzirch 🇳🇱 484 158 10ms 3 Jul 2025 626th edsrzf 🇳🇿 479 110 9ms 7 days ago 627th snoozingnewt 🇺🇸 478 185 356ms 4 Oct 2025 628th rucin93 🇵🇱 476 251 238ms 5 Sep 2024 629th junkondo-jp 475 149 9ms 15 Dec 2024 630th snoozingnewt 🇺🇸 475 189 2ms 9 Oct 2025 631st KatieLG 🇬🇧 475 292 6ms 1 Sep 2024 632nd janAkali 🇷🇺 470 171 335ms 17 May 2025 633rd R4z0rX 465 152 9ms 1 Sep 2024 634th DialFrost 🇸🇬 465 207 337ms 24 Sep 2025 635th Apzyte-Gamer 463 165 9ms 28 Oct 2024 636th iczelia 🇩🇪 462 194 2ms 11 Oct 2025 637th two-bad 🇬🇧 454 156 12ms 4 Oct 2024 638th CyberTapir 452 169 9ms 1 Sep 2024 639th ravnskjaer 🇩🇰 450 214 313ms 11 Sep 2024 640th msbranicky 445 269 237ms 1 Sep 2024 641st rollershutter 434 176 10ms 18 Nov 2024 641st Yewzir 🇧🇪 434 176 10ms 10 days ago 643rd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 644th Yax42 🇫🇷 430 224 353ms 5 Oct 2025 645th vhoulbreque 🇫🇷 422 146 174ms 13 days ago 646th aksyristos 418 101 35ms 17 Nov 2024 647th MeWhenI 🇻🇦 412 260 72ms 13 Jun 2025 648th bac0id 403 266 2,616ms 10 Jan 2025 649th Jacob385 401 240 313ms 4 Sep 2024 650th dokutan 398 155 246ms 1 Sep 2024 651st zakariamouhid 397 178 15ms 14 Sep 2024 652nd galloj 🇨🇿 396 101 8ms 4 Sep 2024 653rd mathisfun271 392 195 10ms 3 Oct 2024 654th varhammer 🇷🇺 389 235 9ms 20 Oct 2025 655th IISResetMe 366 127 340ms 17 Nov 2024 656th Giantnoodlemonster 365 246 2ms 27 Sep 2024 657th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 658th Mikey-Beep 🇬🇧 354 193 19ms 13 Aug 2025 659th AidanWalter 346 221 9ms 3 Jan 2025 660th snoozingnewt 🇺🇸 331 186 8ms 1 Sep 2024 661st timhaj 🇸🇮 320 239 9ms 19 Sep 2024 662nd snoozingnewt 🇺🇸 307 209 131ms 1 Sep 2024 663rd nephila-nacrea 🇬🇧 283 132 4ms 4 Sep 2024 664th KatieLG 🇬🇧 262 459 1,339ms 15 Sep 2024 665th bidger 261 369 312ms 20 Sep 2024 666th KatieLG 🇬🇧 260 460 214ms 15 Sep 2024 667th snoozingnewt 🇺🇸 241 444 993ms 6 Oct 2025 668th KatieLG 🇬🇧 200 401 159ms 15 Sep 2024 669th KatieLG 🇬🇧 191 398 8ms 15 Sep 2024 670th KatieLG 🇬🇧 171 768 262ms 15 Sep 2024 671st KatieLG 🇬🇧 113 466 3ms 15 Sep 2024 672nd Msleizak 🇫🇷 110 424 242ms 7 Feb 2025 673rd KatieLG 🇬🇧 103 937 303ms 15 Sep 2024 674th KatieLG 🇬🇧 86 1,032 387ms 15 Sep 2024 675th dokutan 64 1,663 74ms 23 Apr 2025 First Prev 601–675 of 696 Next Last