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 TheZwierzLF 🇵🇱 565 75 41ms 27 Dec 2025 642nd aksyristos 563 111 13ms 1 Sep 2024 642nd AstroOrbis 563 111 10ms 30 Jun 2025 644th tomh1012 563 126 11ms 18 Sep 2025 645th MostParsingVex 563 160 27ms 30 Sep 2024 646th RedzGoose 🇦🇺 560 145 108ms 9 Sep 2024 647th msbranicky 556 135 3ms 1 Sep 2024 648th jusaka 550 40 45ms 7 days ago 649th HumanoidCPU 548 110 146ms 22 Nov 2025 650th Shanethegamer 🇺🇸 544 107 83ms 1 Sep 2024 651st dokutan 544 155 220ms 1 Sep 2024 652nd Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 653rd jusaka 543 163 133ms 6 days ago 654th scpchicken 🇵🇼 542 69 6ms 17 mins ago 655th DialFrost 🇸🇬 542 76 17ms 1 Aug 2025 656th Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 657th KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 658th albanian-laundromat 🇺🇸 540 352 11ms 18 Sep 2025 659th Shanethegamer 🇺🇸 539 91 22ms 1 Sep 2024 660th LeoCh01 539 116 10ms 1 Sep 2024 661st snoozingnewt 🇨🇦 536 79 54ms 12 Oct 2025 662nd Mabeloid 🇳🇴 534 109 569ms 17 Sep 2024 663rd Shanethegamer 🇺🇸 534 183 492ms 24 Sep 2025 664th trijin 533 118 5ms 5 Oct 2024 665th emgordon154 531 133 13ms 16 Dec 2024 666th tomh1012 526 169 420ms 17 Sep 2025 667th Zhenyu-Bo 525 119 10ms 1 Aug 2025 667th tomh1012 525 119 10ms 2 Mar 2026 669th ravnskjaer 🇩🇰 525 186 469ms 15 Dec 2025 670th lhulinsky 521 120 13ms 23 Oct 2024 670th arjunarya1 521 120 10ms 11 Sep 2025 672nd jusaka 521 422 1,725ms 7 days ago 673rd CaedenHarper 🇨🇦 520 188 493ms 3 Oct 2025 674th error256 516 134 2ms 24 Sep 2024 675th dokutan 513 174 11ms 28 Feb 2026 676th kevinnaviapaiva 512 122 10ms 16 Feb 2025 677th eddvrs 508 123 10ms 29 Sep 2024 678th Yewzir 🇧🇪 506 115 436ms 1 Dec 2025 679th dbut2 🇦🇺 505 261 337ms 3 Sep 2024 680th yokasuretsu 504 124 10ms 10 Jul 2025 680th hamilton-bonds 504 124 10ms 24 Jul 2025 682nd MeWhenI 🇻🇦 499 86 1,062ms 15 Sep 2025 683rd LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 684th snoozingnewt 🇨🇦 499 160 111ms 1 Sep 2024 685th MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 686th nhausspiegel 496 126 13ms 13 Sep 2024 687th rucin93 🇵🇱 494 152 3ms 15 days ago 688th mateusz-sterczewski 492 86 40ms 15 Jan 2026 689th matsagad 492 127 10ms 16 Jan 2025 690th madex 🇩🇪 492 183 2ms 2 Sep 2024 691st codewrite 🇬🇧 491 181 427ms 30 Dec 2025 692nd xyangst 488 128 11ms 12 Oct 2024 692nd 123mjb 488 128 10ms 19 Nov 2025 694th AstroOrbis 487 145 6ms 25 Feb 2026 695th snoozingnewt 🇨🇦 485 120 118ms 14 Oct 2025 696th alphafalfa 484 105 4ms 1 Nov 2024 697th KatieLG 🇬🇧 481 292 7ms 1 Sep 2024 698th snoozingnewt 🇨🇦 480 185 450ms 4 Oct 2025 699th rucin93 🇵🇱 480 251 245ms 5 Sep 2024 700th snoozingnewt 🇨🇦 477 189 2ms 9 Oct 2025 701st junkondo-jp 476 149 11ms 15 Dec 2024 702nd jusaka 476 263 45ms 7 days ago 703rd rboath 474 159 97ms 18 Dec 2024 704th DialFrost 🇸🇬 472 207 501ms 24 Sep 2025 705th R4z0rX 466 152 11ms 1 Sep 2024 706th iczelia 🇩🇪 464 194 2ms 11 Oct 2025 707th Jacob385 461 212 385ms 2 days ago 708th JOrE20 457 268 28ms 11 Feb 2026 709th jusaka 457 357 4ms 6 days ago 710th Stockoh 🇫🇷 456 137 10ms 17 Oct 2024 711th jusaka 456 214 400ms 7 days ago 712th Shanethegamer 🇺🇸 454 141 110ms 4 Dec 2025 713th two-bad 🇬🇧 454 156 11ms 4 Oct 2024 714th brimstonetrader 453 138 11ms 17 Oct 2024 715th snoozingnewt 🇨🇦 453 186 8ms 1 Sep 2024 716th msbranicky 448 269 234ms 1 Sep 2024 717th Shanethegamer 🇺🇸 442 115 2ms 1 Sep 2024 718th IISResetMe 440 106 406ms 3 Jan 2026 719th Yax42 🇫🇷 436 224 471ms 5 Oct 2025 720th ehulinsky 🇺🇸 435 122 3ms 3 Apr 2025 First Prev 641–720 of 837 Next Last