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 KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 602nd dokutan 539 155 242ms 1 Sep 2024 603rd Shanethegamer 🇺🇸 538 107 91ms 1 Sep 2024 604th LeoCh01 538 116 9ms 1 Sep 2024 605th Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 606th snoozingnewt 🇨🇦 534 79 40ms 12 Oct 2025 607th Mabeloid 🇳🇴 533 109 701ms 17 Sep 2024 608th albanian-laundromat 533 352 11ms 18 Sep 2025 609th trijin 529 118 5ms 5 Oct 2024 610th Shanethegamer 🇺🇸 528 183 452ms 24 Sep 2025 611th emgordon154 527 133 15ms 16 Dec 2024 612th Zhenyu-Bo 524 119 11ms 1 Aug 2025 613th tomh1012 523 169 395ms 17 Sep 2025 614th lhulinsky 520 120 11ms 23 Oct 2024 614th arjunarya1 520 120 10ms 11 Sep 2025 616th ravnskjaer 🇩🇰 519 186 344ms 2 days ago 617th error256 515 134 2ms 24 Sep 2024 618th CaedenHarper 🇨🇦 514 188 438ms 3 Oct 2025 619th kevinnaviapaiva 512 122 12ms 16 Feb 2025 620th Shanethegamer 🇺🇸 512 141 105ms 13 days ago 621st eddvrs 507 123 11ms 29 Sep 2024 622nd Yewzir 🇧🇪 505 115 364ms 17 days ago 623rd yokasuretsu 503 124 11ms 10 Jul 2025 623rd hamilton-bonds 503 124 10ms 24 Jul 2025 625th madex 🇩🇪 502 84 45ms 1 Sep 2024 626th dbut2 🇦🇺 502 261 254ms 3 Sep 2024 627th LukeBridges 🇬🇧 498 142 9ms 3 Sep 2024 628th snoozingnewt 🇨🇦 497 160 101ms 1 Sep 2024 629th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 630th nhausspiegel 495 126 10ms 13 Sep 2024 631st Shanethegamer 🇺🇸 493 115 2ms 1 Sep 2024 632nd matsagad 491 127 10ms 16 Jan 2025 633rd madex 🇩🇪 491 183 2ms 2 Sep 2024 634th xyangst 488 128 11ms 12 Oct 2024 634th 123mjb 488 128 10ms 19 Nov 2025 636th snoozingnewt 🇨🇦 480 120 118ms 14 Oct 2025 637th snoozingnewt 🇨🇦 478 185 387ms 4 Oct 2025 638th snoozingnewt 🇨🇦 476 189 5ms 9 Oct 2025 639th rucin93 🇵🇱 476 251 221ms 5 Sep 2024 640th junkondo-jp 475 149 9ms 15 Dec 2024 641st KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 642nd rboath 470 159 109ms 18 Dec 2024 643rd janAkali 🇷🇺 470 171 385ms 17 May 2025 644th DialFrost 🇸🇬 467 207 461ms 24 Sep 2025 645th R4z0rX 466 152 9ms 1 Sep 2024 646th iczelia 🇩🇪 463 194 2ms 11 Oct 2025 647th Stockoh 🇫🇷 456 137 11ms 17 Oct 2024 648th two-bad 🇬🇧 454 156 9ms 4 Oct 2024 648th JOrE20 🇺🇸 454 156 9ms 16 days ago 650th brimstonetrader 452 138 10ms 17 Oct 2024 651st snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 652nd msbranicky 445 269 217ms 1 Sep 2024 653rd ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 654th Yax42 🇫🇷 431 224 452ms 5 Oct 2025 655th aksyristos 417 101 41ms 17 Nov 2024 656th MeWhenI 🇻🇦 411 260 94ms 13 Jun 2025 657th HunterC14 403 155 10ms 21 Oct 2024 658th Jacob385 402 240 398ms 4 Sep 2024 659th bac0id 402 266 2,912ms 10 Jan 2025 660th zakariamouhid 398 178 10ms 14 Sep 2024 661st galloj 🇨🇿 396 101 10ms 4 Sep 2024 662nd Naitzirch 🇳🇱 395 158 11ms 3 Jul 2025 663rd varhammer 🇷🇺 389 235 8ms 20 Oct 2025 664th Apzyte-Gamer 378 165 10ms 28 Oct 2024 665th CyberTapir 369 169 10ms 1 Sep 2024 666th IISResetMe 366 127 359ms 17 Nov 2024 667th Giantnoodlemonster 365 246 2ms 27 Sep 2024 668th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 669th rollershutter 355 176 10ms 18 Nov 2024 670th Mikey-Beep 🇬🇧 354 193 14ms 13 Aug 2025 671st nephila-nacrea 🇬🇧 283 132 3ms 4 Sep 2024 672nd AidanWalter 282 221 11ms 3 Jan 2025 673rd bidger 262 369 411ms 20 Sep 2024 674th KatieLG 🇬🇧 262 459 1,375ms 15 Sep 2024 675th timhaj 🇸🇮 261 239 10ms 19 Sep 2024 First Prev 601–675 of 706 Next Last