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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 569 132 3ms 1 Sep 2024 642nd Andrey2001 568 110 14ms 31 Jan 2026 643rd TeodorDyakov 🇧🇬 567 159 2ms 6 Sep 2025 644th emgordon154 566 113 111ms 4 Dec 2025 645th TheZwierzLF 🇵🇱 565 75 39ms 27 Dec 2025 646th aksyristos 563 111 13ms 1 Sep 2024 646th AstroOrbis 563 111 10ms 30 Jun 2025 648th tomh1012 563 126 11ms 18 Sep 2025 649th MostParsingVex 563 160 27ms 30 Sep 2024 650th RedzGoose 🇦🇺 560 145 108ms 9 Sep 2024 651st msbranicky 556 135 3ms 1 Sep 2024 652nd jusaka 550 40 40ms 11 days ago 653rd HumanoidCPU 548 110 132ms 22 Nov 2025 654th Shanethegamer 🇺🇸 544 107 83ms 1 Sep 2024 655th dokutan 544 155 220ms 1 Sep 2024 656th Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 657th jusaka 543 163 132ms 10 days ago 658th scpchicken 🇵🇼 542 69 6ms 3 days ago 659th DialFrost 🇸🇬 542 76 17ms 1 Aug 2025 660th Shanethegamer 🇺🇸 542 206 32ms 4 Sep 2024 661st KatieLG 🇬🇧 540 128 2ms 2 Oct 2025 662nd albanian-laundromat 🇺🇸 540 352 11ms 18 Sep 2025 663rd Shanethegamer 🇺🇸 539 91 22ms 1 Sep 2024 664th LeoCh01 539 116 10ms 1 Sep 2024 665th snoozingnewt 🇨🇦 536 79 47ms 12 Oct 2025 666th Mabeloid 🇳🇴 534 109 569ms 17 Sep 2024 667th Shanethegamer 🇺🇸 534 183 480ms 24 Sep 2025 668th trijin 533 118 5ms 5 Oct 2024 669th emgordon154 531 133 13ms 16 Dec 2024 670th tomh1012 526 169 407ms 17 Sep 2025 671st Zhenyu-Bo 525 119 10ms 1 Aug 2025 671st tomh1012 525 119 10ms 2 Mar 2026 673rd ravnskjaer 🇩🇰 525 186 507ms 15 Dec 2025 674th lhulinsky 521 120 13ms 23 Oct 2024 674th arjunarya1 521 120 10ms 11 Sep 2025 676th jusaka 521 422 1,725ms 11 days ago 677th CaedenHarper 🇨🇦 520 188 461ms 3 Oct 2025 678th error256 516 134 2ms 24 Sep 2024 679th dokutan 513 174 12ms 28 Feb 2026 680th kevinnaviapaiva 512 122 10ms 16 Feb 2025 681st eddvrs 508 123 10ms 29 Sep 2024 682nd Yewzir 🇧🇪 506 115 436ms 1 Dec 2025 683rd dbut2 🇦🇺 505 261 337ms 3 Sep 2024 684th yokasuretsu 504 124 10ms 10 Jul 2025 684th hamilton-bonds 504 124 10ms 24 Jul 2025 686th MeWhenI 🇻🇦 499 86 968ms 15 Sep 2025 687th LukeBridges 🇬🇧 499 142 11ms 3 Sep 2024 688th snoozingnewt 🇨🇦 499 160 111ms 1 Sep 2024 689th MeWhenI 🇻🇦 498 181 2ms 13 Jun 2025 690th nhausspiegel 496 126 13ms 13 Sep 2024 691st rucin93 🇵🇱 494 152 3ms 19 days ago 692nd mateusz-sterczewski 492 86 40ms 15 Jan 2026 693rd matsagad 492 127 10ms 16 Jan 2025 694th madex 🇩🇪 492 183 2ms 2 Sep 2024 695th codewrite 🇬🇧 491 181 492ms 30 Dec 2025 696th xyangst 488 128 11ms 12 Oct 2024 696th 123mjb 488 128 10ms 19 Nov 2025 698th AstroOrbis 487 145 6ms 25 Feb 2026 699th snoozingnewt 🇨🇦 485 120 118ms 14 Oct 2025 700th alphafalfa 484 105 4ms 1 Nov 2024 701st KatieLG 🇬🇧 481 292 7ms 1 Sep 2024 702nd snoozingnewt 🇨🇦 480 185 420ms 4 Oct 2025 703rd rucin93 🇵🇱 480 251 232ms 5 Sep 2024 704th snoozingnewt 🇨🇦 477 189 2ms 9 Oct 2025 705th junkondo-jp 476 149 10ms 15 Dec 2024 706th rboath 474 159 97ms 18 Dec 2024 707th DialFrost 🇸🇬 472 207 455ms 24 Sep 2025 708th R4z0rX 467 152 11ms 1 Sep 2024 709th jusaka 467 263 45ms 10 days ago 710th iczelia 🇩🇪 464 194 2ms 11 Oct 2025 711th Jacob385 461 212 408ms 6 days ago 712th JOrE20 457 268 28ms 11 Feb 2026 713th jusaka 457 357 4ms 10 days ago 714th Stockoh 🇫🇷 456 137 10ms 17 Oct 2024 715th jusaka 456 214 399ms 11 days ago 716th two-bad 🇬🇧 455 156 11ms 4 Oct 2024 717th Shanethegamer 🇺🇸 454 141 110ms 4 Dec 2025 718th brimstonetrader 453 138 11ms 17 Oct 2024 719th snoozingnewt 🇨🇦 453 186 8ms 1 Sep 2024 720th msbranicky 448 269 219ms 1 Sep 2024 First Prev 641–720 of 841 Next Last