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 dokutan 565 132 3ms 1 Sep 2024 642nd aksyristos 563 111 13ms 1 Sep 2024 642nd AstroOrbis 563 111 10ms 30 Jun 2025 644th emgordon154 563 113 111ms 4 Dec 2025 645th tomh1012 563 126 10ms 18 Sep 2025 646th MostParsingVex 563 160 33ms 30 Sep 2024 647th RedzGoose 🇦🇺 560 145 126ms 9 Sep 2024 648th flekAI 558 127 10ms 9 hours ago 649th msbranicky 552 135 3ms 1 Sep 2024 650th HumanoidCPU 547 110 151ms 22 Nov 2025 651st Shanethegamer 🇺🇸 544 107 83ms 1 Sep 2024 652nd dokutan 544 155 220ms 1 Sep 2024 653rd Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 654th KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 655th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 656th LeoCh01 539 116 10ms 1 Sep 2024 657th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 658th snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 659th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 660th Mabeloid 🇳🇴 534 109 569ms 17 Sep 2024 661st trijin 533 118 6ms 5 Oct 2024 662nd Shanethegamer 🇺🇸 533 183 492ms 24 Sep 2025 663rd albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 664th emgordon154 531 133 14ms 16 Dec 2024 665th tomh1012 526 169 405ms 17 Sep 2025 666th Zhenyu-Bo 525 119 10ms 1 Aug 2025 666th tomh1012 525 119 10ms 2 Mar 2026 668th ravnskjaer 🇩🇰 524 186 469ms 15 Dec 2025 669th lhulinsky 521 120 13ms 23 Oct 2024 669th arjunarya1 521 120 10ms 11 Sep 2025 671st CaedenHarper 🇨🇦 519 188 493ms 3 Oct 2025 672nd error256 516 134 2ms 24 Sep 2024 673rd kevinnaviapaiva 512 122 10ms 16 Feb 2025 674th eddvrs 508 123 10ms 29 Sep 2024 675th dokutan 507 174 10ms 28 Feb 2026 676th Yewzir 🇧🇪 506 115 436ms 1 Dec 2025 677th dbut2 🇦🇺 505 261 337ms 3 Sep 2024 678th yokasuretsu 504 124 10ms 10 Jul 2025 678th hamilton-bonds 504 124 10ms 24 Jul 2025 680th MeWhenI 🇻🇦 499 86 1,062ms 15 Sep 2025 681st LukeBridges 🇬🇧 499 142 13ms 3 Sep 2024 682nd snoozingnewt 🇨🇦 499 160 108ms 1 Sep 2024 683rd MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 684th nhausspiegel 496 126 13ms 13 Sep 2024 685th mateusz-sterczewski 492 86 36ms 15 Jan 2026 686th matsagad 492 127 10ms 16 Jan 2025 687th madex 🇩🇪 492 183 2ms 2 Sep 2024 688th rucin93 🇵🇱 491 152 3ms 5 days ago 689th codewrite 🇬🇧 491 181 430ms 30 Dec 2025 690th xyangst 488 128 11ms 12 Oct 2024 690th 123mjb 488 128 10ms 19 Nov 2025 692nd AstroOrbis 487 145 7ms 25 Feb 2026 693rd flekAI 487 241 1,321ms 5 hours ago 694th snoozingnewt 🇨🇦 485 120 118ms 14 Oct 2025 695th alphafalfa 480 105 4ms 1 Nov 2024 696th snoozingnewt 🇨🇦 480 185 407ms 4 Oct 2025 697th rucin93 🇵🇱 480 251 243ms 5 Sep 2024 698th snoozingnewt 🇨🇦 477 189 2ms 9 Oct 2025 699th junkondo-jp 476 149 9ms 15 Dec 2024 700th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 701st rboath 474 159 97ms 18 Dec 2024 702nd DialFrost 🇸🇬 471 207 501ms 24 Sep 2025 703rd R4z0rX 466 152 9ms 1 Sep 2024 704th iczelia 🇩🇪 464 194 2ms 11 Oct 2025 705th JOrE20 457 268 28ms 11 Feb 2026 706th Stockoh 🇫🇷 456 137 10ms 17 Oct 2024 707th two-bad 🇬🇧 454 156 10ms 4 Oct 2024 708th brimstonetrader 453 138 11ms 17 Oct 2024 709th snoozingnewt 🇨🇦 453 186 8ms 1 Sep 2024 710th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 711th msbranicky 448 269 242ms 1 Sep 2024 712th flekAI 442 273 183ms 5 hours ago 713th IISResetMe 439 106 438ms 3 Jan 2026 714th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 715th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 716th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 717th aksyristos 419 101 37ms 17 Nov 2024 718th scpchicken 🇵🇼 416 90 4ms 24 hours ago 719th MeWhenI 🇻🇦 412 260 77ms 13 Jun 2025 720th amazingalek 🇳🇴 411 216 450ms 26 Jan 2026 First Prev 641–720 of 806 Next Last