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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 641st aksyristos 563 111 13ms 1 Sep 2024 641st AstroOrbis 563 111 10ms 30 Jun 2025 643rd tomh1012 563 126 11ms 18 Sep 2025 644th RedzGoose 🇦🇺 563 145 126ms 9 Sep 2024 645th flekAI 558 127 10ms 3 days ago 646th msbranicky 556 135 3ms 1 Sep 2024 647th jusaka 550 40 46ms 16 hours ago 648th dokutan 548 155 220ms 1 Sep 2024 649th HumanoidCPU 547 110 151ms 22 Nov 2025 650th Shanethegamer 🇺🇸 546 107 83ms 1 Sep 2024 651st Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 652nd DialFrost 🇸🇬 542 76 1,023ms 1 Aug 2025 653rd Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 654th KatieLG 🇬🇧 541 128 2ms 2 Oct 2025 655th Shanethegamer 🇺🇸 539 91 22ms 1 Sep 2024 656th LeoCh01 539 116 10ms 1 Sep 2024 657th snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 658th Mabeloid 🇳🇴 534 109 569ms 17 Sep 2024 659th trijin 534 118 5ms 5 Oct 2024 660th Shanethegamer 🇺🇸 534 183 492ms 24 Sep 2025 661st albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 662nd emgordon154 532 133 14ms 16 Dec 2024 663rd tomh1012 527 169 420ms 17 Sep 2025 664th Zhenyu-Bo 525 119 10ms 1 Aug 2025 664th tomh1012 525 119 10ms 2 Mar 2026 666th ravnskjaer 🇩🇰 525 186 469ms 15 Dec 2025 667th lhulinsky 521 120 13ms 23 Oct 2024 667th arjunarya1 521 120 10ms 11 Sep 2025 669th CaedenHarper 🇨🇦 520 188 493ms 3 Oct 2025 670th error256 517 134 2ms 24 Sep 2024 671st kevinnaviapaiva 512 122 10ms 16 Feb 2025 672nd jusaka 512 422 1,725ms 9 hours ago 673rd eddvrs 508 123 10ms 29 Sep 2024 674th dokutan 507 174 10ms 28 Feb 2026 675th dbut2 🇦🇺 507 261 337ms 3 Sep 2024 676th Yewzir 🇧🇪 506 115 436ms 1 Dec 2025 677th yokasuretsu 504 124 10ms 10 Jul 2025 677th hamilton-bonds 504 124 10ms 24 Jul 2025 679th MeWhenI 🇻🇦 500 86 1,062ms 15 Sep 2025 680th snoozingnewt 🇨🇦 500 160 108ms 1 Sep 2024 681st LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 682nd MeWhenI 🇻🇦 499 181 2ms 13 Jun 2025 683rd nhausspiegel 496 126 13ms 13 Sep 2024 684th rucin93 🇵🇱 494 152 3ms 8 days ago 685th mateusz-sterczewski 493 86 36ms 15 Jan 2026 686th madex 🇩🇪 493 183 2ms 2 Sep 2024 687th matsagad 492 127 10ms 16 Jan 2025 688th codewrite 🇬🇧 492 181 427ms 30 Dec 2025 689th flekAI 490 241 1,445ms 3 days ago 690th xyangst 488 128 11ms 12 Oct 2024 690th 123mjb 488 128 10ms 19 Nov 2025 692nd AstroOrbis 488 145 7ms 25 Feb 2026 693rd snoozingnewt 🇨🇦 487 120 118ms 14 Oct 2025 694th snoozingnewt 🇨🇦 481 185 450ms 4 Oct 2025 695th KatieLG 🇬🇧 481 292 7ms 1 Sep 2024 696th alphafalfa 480 105 4ms 1 Nov 2024 697th rucin93 🇵🇱 480 251 243ms 5 Sep 2024 698th snoozingnewt 🇨🇦 478 189 2ms 9 Oct 2025 699th rboath 477 159 97ms 18 Dec 2024 700th junkondo-jp 476 149 11ms 15 Dec 2024 701st jusaka 476 263 45ms 6 hours ago 702nd DialFrost 🇸🇬 472 207 501ms 24 Sep 2025 703rd R4z0rX 467 152 11ms 1 Sep 2024 704th iczelia 🇩🇪 465 194 2ms 11 Oct 2025 705th JOrE20 460 268 28ms 11 Feb 2026 706th scpchicken 🇵🇼 457 82 6ms 2 days ago 707th Stockoh 🇫🇷 456 137 10ms 17 Oct 2024 708th snoozingnewt 🇨🇦 456 186 8ms 1 Sep 2024 709th jusaka 456 214 400ms 13 hours ago 710th two-bad 🇬🇧 455 156 11ms 4 Oct 2024 711th Shanethegamer 🇺🇸 454 141 110ms 4 Dec 2025 712th brimstonetrader 453 138 11ms 17 Oct 2024 713th msbranicky 448 269 242ms 1 Sep 2024 714th flekAI 442 273 183ms 3 days ago 715th IISResetMe 439 106 406ms 3 Jan 2026 716th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 717th Yax42 🇫🇷 436 224 471ms 5 Oct 2025 718th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 719th aksyristos 420 101 37ms 17 Nov 2024 720th MeWhenI 🇻🇦 413 260 77ms 13 Jun 2025 First Prev 641–720 of 851 Next Last