PalindromemordnilaP in all languages in chars. 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 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 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 Multitap Input 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 ><> 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 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 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 Multitap Input 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 Chars Time Submitted 601st LeoCh01 538 116 9ms 1 Sep 2024 602nd Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 603rd snoozingnewt 🇨🇦 534 79 45ms 12 Oct 2025 604th Mabeloid 🇳🇴 533 109 701ms 17 Sep 2024 605th albanian-laundromat 533 352 11ms 18 Sep 2025 606th trijin 529 118 5ms 5 Oct 2024 607th emgordon154 527 133 15ms 16 Dec 2024 608th Shanethegamer 🇺🇸 526 183 452ms 24 Sep 2025 609th Zhenyu-Bo 524 119 11ms 1 Aug 2025 610th tomh1012 523 169 346ms 17 Sep 2025 611th lhulinsky 520 120 11ms 23 Oct 2024 611th arjunarya1 520 120 10ms 11 Sep 2025 613th error256 515 134 2ms 24 Sep 2024 614th Shanethegamer 🇺🇸 512 141 107ms 6 days ago 615th CaedenHarper 🇨🇦 512 188 438ms 3 Oct 2025 616th kevinnaviapaiva 511 122 12ms 16 Feb 2025 617th eddvrs 507 123 11ms 29 Sep 2024 618th Yewzir 🇧🇪 505 115 364ms 9 days ago 619th yokasuretsu 503 124 11ms 10 Jul 2025 619th hamilton-bonds 503 124 10ms 24 Jul 2025 621st madex 🇩🇪 502 84 46ms 1 Sep 2024 622nd dbut2 🇦🇺 502 261 254ms 3 Sep 2024 623rd LukeBridges 🇬🇧 498 142 9ms 3 Sep 2024 624th snoozingnewt 🇨🇦 497 160 105ms 1 Sep 2024 625th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 626th nhausspiegel 495 126 10ms 13 Sep 2024 627th Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 628th matsagad 491 127 10ms 16 Jan 2025 629th madex 🇩🇪 491 183 2ms 2 Sep 2024 630th xyangst 487 128 11ms 12 Oct 2024 630th 123mjb 487 128 10ms 21 days ago 632nd snoozingnewt 🇨🇦 480 120 118ms 14 Oct 2025 633rd snoozingnewt 🇨🇦 478 185 356ms 4 Oct 2025 634th snoozingnewt 🇨🇦 476 189 5ms 9 Oct 2025 635th rucin93 🇵🇱 476 251 258ms 5 Sep 2024 636th junkondo-jp 475 149 9ms 15 Dec 2024 637th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 638th rboath 470 159 109ms 18 Dec 2024 639th janAkali 🇷🇺 470 171 385ms 17 May 2025 640th R4z0rX 466 152 9ms 1 Sep 2024 641st DialFrost 🇸🇬 465 207 461ms 24 Sep 2025 642nd iczelia 🇩🇪 463 194 2ms 11 Oct 2025 643rd Stockoh 🇫🇷 455 137 11ms 17 Oct 2024 644th two-bad 🇬🇧 454 156 9ms 4 Oct 2024 644th JOrE20 🇺🇸 454 156 9ms 8 days ago 646th brimstonetrader 452 138 10ms 17 Oct 2024 647th ravnskjaer 🇩🇰 450 214 403ms 11 Sep 2024 648th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 649th msbranicky 445 269 258ms 1 Sep 2024 650th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 651st Yax42 🇫🇷 430 224 452ms 5 Oct 2025 652nd aksyristos 417 101 43ms 17 Nov 2024 653rd MeWhenI 🇻🇦 411 260 71ms 13 Jun 2025 654th HunterC14 403 155 10ms 21 Oct 2024 655th bac0id 402 266 2,386ms 10 Jan 2025 656th Jacob385 401 240 398ms 4 Sep 2024 657th zakariamouhid 398 178 10ms 14 Sep 2024 658th galloj 🇨🇿 396 101 10ms 4 Sep 2024 659th Naitzirch 🇳🇱 395 158 11ms 3 Jul 2025 660th varhammer 🇷🇺 389 235 8ms 20 Oct 2025 661st Apzyte-Gamer 378 165 10ms 28 Oct 2024 662nd CyberTapir 369 169 10ms 1 Sep 2024 663rd IISResetMe 366 127 328ms 17 Nov 2024 664th Giantnoodlemonster 365 246 2ms 27 Sep 2024 665th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 666th rollershutter 355 176 10ms 18 Nov 2024 667th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 668th nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 669th AidanWalter 282 221 11ms 3 Jan 2025 670th KatieLG 🇬🇧 262 459 1,222ms 15 Sep 2024 671st timhaj 🇸🇮 261 239 10ms 19 Sep 2024 672nd bidger 261 369 411ms 20 Sep 2024 673rd KatieLG 🇬🇧 260 460 232ms 15 Sep 2024 674th snoozingnewt 🇨🇦 241 444 1,034ms 6 Oct 2025 675th KatieLG 🇬🇧 200 401 125ms 15 Sep 2024 First Prev 601–675 of 703 Next Last