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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 500th smiksky 🇺🇸 672 93 10ms 16 Oct 2024 500th guilhem-roy 🇫🇷 672 93 10ms 31 May 2025 503rd alicethecatwhisperermeow 672 132 451ms 14 Sep 2024 504th madeforlosers 669 106 10ms 23 Oct 2024 505th chunes3 🇺🇸 668 112 64ms 1 Sep 2024 506th mousetail 🇳🇱 665 94 13ms 1 Sep 2024 506th ljweel 665 94 11ms 12 Sep 2024 508th DialFrost 🇸🇬 664 181 198ms 12 Apr 2025 509th DialFrost 🇸🇬 663 96 99ms 28 Nov 2025 510th dokutan 661 64 48ms 23 Feb 2025 511th Shanethegamer 🇺🇸 661 91 140ms 5 Sep 2024 512th GolfingSuccess 🇬🇷 660 162 448ms 1 Sep 2024 512th ovs-code 🇩🇪 660 162 2,842ms 1 Sep 2024 514th msbranicky 658 95 11ms 1 Sep 2024 514th Bulmenisaurus 658 95 12ms 4 Sep 2024 514th btjones0 658 95 10ms 13 Sep 2024 514th jfallon1997 658 95 10ms 26 Sep 2024 514th jacekwladzinski 658 95 10ms 7 Oct 2025 514th aalec 658 95 10ms 8 Nov 2025 520th msbranicky 657 95 2,459ms 8 Jan 2025 521st NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 522nd Shanethegamer 🇺🇸 657 135 460ms 1 Sep 2024 523rd lukechampine 657 200 342ms 7 Jun 2025 523rd jerrandolph 657 200 334ms 21 Sep 2025 525th msbranicky 656 136 3ms 1 Sep 2024 526th snoozingnewt 🇨🇦 654 194 44ms 14 days ago 527th m-tkach 🇺🇦 653 169 29ms 9 Feb 2026 528th TFeld00 🇩🇰 651 65 39ms 3 Sep 2024 529th fgrosshans 🇫🇷 651 96 10ms 1 Sep 2024 529th mm1013g 651 96 12ms 2 Sep 2024 529th Mikey-Beep 🇬🇧 651 96 10ms 2 Sep 2024 529th JudeTyrrell 651 96 13ms 22 Sep 2024 533rd ShiraJoseph 🇺🇸 650 109 11ms 22 Sep 2024 534th dokutan 649 78 202ms 3 Sep 2024 535th msbranicky 648 203 333ms 1 Sep 2024 536th voytxt 🇨🇿 647 93 138ms 17 Apr 2025 537th AlephSquirrel 647 248 3ms 29 Sep 2024 538th stefangimmillaro 646 151 496ms 6 Oct 2025 539th stefangimmillaro 645 71 1,623ms 3 Sep 2024 540th Waffle3z 645 107 2ms 2 Oct 2024 541st Carlettos1 644 97 13ms 14 Sep 2024 542nd mrxz 🇳🇱 644 110 11ms 22 Sep 2024 542nd weliveinhell 🇭🇹 644 110 10ms 28 Sep 2024 544th Chinay-Domitrix 🇺🇸 643 97 2,369ms 14 Mar 2026 545th BlankSpruce 642 140 2ms 1 Sep 2024 546th albanian-laundromat 🇺🇸 642 189 44ms 14 Sep 2025 547th aDwarfNamedUrist 640 138 118ms 4 Sep 2024 548th stefangimmillaro 640 188 209ms 4 Jun 2025 549th pickerj 638 98 12ms 13 Sep 2024 549th dtbao20 🇻🇳 638 98 22ms 30 Sep 2024 549th YAJUE114514 638 98 10ms 30 Jul 2025 549th netfri25 🇮🇱 638 98 10ms 22 Feb 2026 549th rotemkm 638 98 11ms 22 Feb 2026 554th SirBogman 🇺🇸 637 73 288ms 23 Jul 2025 555th Shanethegamer 🇺🇸 636 72 1,553ms 1 Sep 2024 555th anter69 🇭🇺 636 72 1,643ms 25 Oct 2024 557th weeble 636 77 7ms 21 Dec 2025 558th Ripick 636 127 433ms 6 Sep 2024 559th CaedenHarper 🇨🇦 633 112 10ms 22 Aug 2025 560th olleicua 🇺🇸 632 67 47ms 6 Sep 2024 560th madex 🇩🇪 632 67 36ms 15 Mar 2026 562nd alexeldridge 631 99 14ms 14 Sep 2024 562nd Just4FunCoder 631 99 10ms 14 Sep 2025 562nd 0xjac 🇨🇭 631 99 11ms 24 Nov 2025 565th cthierfelder 🇲🇨 630 193 75ms 5 Sep 2025 566th kmathis22 629 155 560ms 14 Dec 2025 567th BalaM314 627 113 12ms 4 Feb 2025 567th Program-Pi 627 113 10ms 26 Feb 2026 569th SirBogman 🇺🇸 626 59 145ms 23 Jul 2025 570th Kacarott 🇦🇺 625 100 10ms 3 Sep 2024 571st Shanethegamer 🇺🇸 622 68 43ms 1 Sep 2024 571st emgordon154 622 68 44ms 1 Sep 2024 571st rvs314 622 68 44ms 24 Sep 2024 574th DialFrost 🇸🇬 622 111 1ms 22 Nov 2024 575th KrausRaus 🇺🇸 622 114 12ms 1 Sep 2024 575th snoozingnewt 🇨🇦 622 114 10ms 12 Oct 2025 577th albanian-laundromat 🇺🇸 621 69 712ms 12 Sep 2025 578th madex 🇩🇪 619 101 11ms 1 Sep 2024 578th RedzGoose 🇦🇺 619 101 11ms 15 Oct 2024 578th someCoder-a11y 619 101 10ms 10 days ago 581st lifthrasiir 🇰🇷 618 227 46ms 11 Dec 2024 582nd Andrey-Plotnikov 616 115 10ms 30 Sep 2025 583rd aliakseikalosha 616 144 439ms 5 Sep 2024 584th sciencejiho 613 102 11ms 13 Sep 2024 584th Papushkado 613 102 10ms 10 Nov 2025 584th TheSecondComing123 613 102 14ms 4 Feb 2026 587th Shanethegamer 🇺🇸 612 102 2,800ms 25 Oct 2024 587th dokutan 612 102 2,809ms 26 Oct 2024 589th Natanaelel 🇸🇪 611 112 14ms 15 May 2025 590th BambooleanLogic 🇸🇪 611 116 10ms 19 Nov 2024 590th acollett89 611 116 10ms 4 Aug 2025 592nd julian-hoelz 607 103 11ms 16 Sep 2024 592nd StefanHabel 🇨🇦 607 103 93ms 22 Mar 2025 594th CaedenHarper 🇨🇦 603 71 674ms 27 Sep 2025 595th Shanethegamer 🇺🇸 603 134 439ms 1 Sep 2024 596th dokutan 603 147 461ms 3 Nov 2024 597th dokutan 602 76 1,640ms 3 Sep 2024 598th Arkadios200 602 132 103ms 11 Oct 2025 599th ComputerKWasTaken 🇺🇸 601 104 11ms 2 Sep 2024 599th elgan65536 🇺🇸 601 104 11ms 23 Sep 2024 First Prev 501–600 of 778 Next Last