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 emgordon154 563 113 111ms 4 Dec 2025 644th tomh1012 562 126 10ms 18 Sep 2025 645th MostParsingVex 562 160 33ms 30 Sep 2024 646th RedzGoose 🇦🇺 557 145 126ms 9 Sep 2024 647th msbranicky 552 135 3ms 1 Sep 2024 648th HumanoidCPU 547 110 151ms 22 Nov 2025 649th Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 650th Shanethegamer 🇺🇸 541 107 83ms 1 Sep 2024 651st DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 652nd LeoCh01 539 116 10ms 1 Sep 2024 653rd KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 654th dokutan 539 155 220ms 1 Sep 2024 655th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 656th snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 657th Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 658th Mabeloid 🇳🇴 534 109 569ms 17 Sep 2024 659th albanian-laundromat 🇺🇸 533 352 11ms 18 Sep 2025 660th trijin 532 118 6ms 5 Oct 2024 661st Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 662nd emgordon154 529 133 14ms 16 Dec 2024 663rd Zhenyu-Bo 525 119 10ms 1 Aug 2025 663rd tomh1012 525 119 10ms 2 Mar 2026 665th tomh1012 525 169 405ms 17 Sep 2025 666th ravnskjaer 🇩🇰 523 186 469ms 15 Dec 2025 667th lhulinsky 521 120 13ms 23 Oct 2024 667th arjunarya1 521 120 10ms 11 Sep 2025 669th CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 670th error256 515 134 2ms 24 Sep 2024 671st kevinnaviapaiva 512 122 10ms 16 Feb 2025 672nd eddvrs 508 123 10ms 29 Sep 2024 673rd dokutan 507 174 10ms 28 Feb 2026 674th Yewzir 🇧🇪 506 115 436ms 1 Dec 2025 675th yokasuretsu 504 124 10ms 10 Jul 2025 675th hamilton-bonds 504 124 10ms 24 Jul 2025 677th dbut2 🇦🇺 504 261 337ms 3 Sep 2024 678th LukeBridges 🇬🇧 499 142 13ms 3 Sep 2024 679th MeWhenI 🇻🇦 498 86 1,062ms 15 Sep 2025 680th snoozingnewt 🇨🇦 497 160 108ms 1 Sep 2024 681st MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 682nd nhausspiegel 496 126 13ms 13 Sep 2024 683rd mateusz-sterczewski 492 86 36ms 15 Jan 2026 684th matsagad 492 127 10ms 16 Jan 2025 685th rucin93 🇵🇱 491 152 3ms 4 days ago 686th madex 🇩🇪 491 183 2ms 2 Sep 2024 687th codewrite 🇬🇧 490 181 430ms 30 Dec 2025 688th xyangst 488 128 11ms 12 Oct 2024 688th 123mjb 488 128 10ms 19 Nov 2025 690th AstroOrbis 485 145 7ms 25 Feb 2026 691st snoozingnewt 🇨🇦 483 120 118ms 14 Oct 2025 692nd alphafalfa 480 105 4ms 1 Nov 2024 693rd snoozingnewt 🇨🇦 479 185 407ms 4 Oct 2025 694th rucin93 🇵🇱 479 251 243ms 5 Sep 2024 695th snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 696th junkondo-jp 475 149 9ms 15 Dec 2024 697th KatieLG 🇬🇧 475 292 7ms 1 Sep 2024 698th rboath 470 159 97ms 18 Dec 2024 699th DialFrost 🇸🇬 470 207 501ms 24 Sep 2025 700th R4z0rX 466 152 9ms 1 Sep 2024 701st iczelia 🇩🇪 463 194 2ms 11 Oct 2025 702nd Stockoh 🇫🇷 456 137 10ms 17 Oct 2024 703rd two-bad 🇬🇧 454 156 10ms 4 Oct 2024 704th brimstonetrader 453 138 11ms 17 Oct 2024 705th JOrE20 453 268 28ms 11 Feb 2026 706th Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 707th snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 708th msbranicky 447 269 242ms 1 Sep 2024 709th IISResetMe 439 106 438ms 3 Jan 2026 710th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 711th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 712th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 713th aksyristos 419 101 37ms 17 Nov 2024 714th scpchicken 🇵🇼 415 90 4ms 15 hours ago 715th amazingalek 🇳🇴 411 216 450ms 26 Jan 2026 716th MeWhenI 🇻🇦 411 260 77ms 13 Jun 2025 717th Jacob385 406 240 393ms 4 Sep 2024 718th HunterC14 403 155 12ms 21 Oct 2024 719th bac0id 402 266 2,913ms 10 Jan 2025 720th zakariamouhid 398 178 11ms 14 Sep 2024 First Prev 641–720 of 777 Next Last