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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 321st KingSkyrock 🇺🇸 779 91 10ms 14 Oct 2024 321st HumanoidCPU 779 91 10ms 22 Nov 2025 323rd dokutan 779 104 203ms 1 Sep 2024 324th stefangimmillaro 779 114 468ms 4 Sep 2024 325th MeWhenI 🇻🇦 778 39 33ms 2 Sep 2024 326th the-zammers 777 114 117ms 1 Dec 2024 327th emgordon154 773 156 375ms 4 Mar 2025 328th bizy-coder 772 81 15ms 1 Sep 2024 328th Natanaelel 🇸🇪 772 81 15ms 1 Sep 2024 328th GrayJoKing 🇦🇺 772 81 15ms 2 Sep 2024 328th bricknellj 772 81 17ms 6 Sep 2024 328th wh3n3v3r 🇨🇿 772 81 11ms 11 Nov 2024 328th xnor-gate 772 81 15ms 4 Mar 2025 328th retrohun 772 81 15ms 9 Mar 2025 328th 051 🇸🇬 772 81 16ms 8 Oct 2025 328th edsrzf 🇳🇿 772 81 18ms 1 Dec 2025 337th edsrzf 🇳🇿 771 83 106ms 28 Feb 2026 337th snoozingnewt 🇨🇦 771 83 98ms 5 days ago 339th error256 771 139 501ms 24 Sep 2024 340th Matter1024 🇮🇳 770 123 439ms 15 days ago 341st JunkIce 766 76 397ms 3 Dec 2024 342nd emplv 🇱🇻 764 79 136ms 1 Nov 2024 343rd error256 763 116 119ms 2 Sep 2024 344th vang1ong7ang 763 158 206ms 18 days ago 345th jatloe 762 82 14ms 4 Sep 2024 345th rchalamala 762 82 11ms 2 Jan 2025 347th sean-niemann 🇺🇸 761 118 3ms 16 Jan 2025 348th stefangimmillaro 760 169 43ms 3 Sep 2024 349th UnderKoen 🇳🇱 759 185 63ms 1 Dec 2025 350th targrik 758 83 5ms 8 Feb 2025 351st Shanethegamer 🇺🇸 757 117 119ms 1 Sep 2024 352nd DialFrost 🇸🇬 756 225 1,214ms 20 Jan 2025 353rd kg583 🇺🇸 755 102 5ms 19 Dec 2025 354th emgordon154 754 94 10ms 1 Sep 2024 354th stefangimmillaro 754 94 11ms 4 Sep 2024 356th error256 753 226 1,206ms 28 Mar 2025 357th Mikey-Beep 🇬🇧 747 119 436ms 2 Sep 2024 358th alemelis 746 78 453ms 1 Sep 2024 358th Shanethegamer 🇺🇸 746 78 465ms 1 Sep 2024 358th SirBogman 🇺🇸 746 78 516ms 4 Sep 2024 358th error256 746 78 484ms 4 Sep 2024 358th commandz0 🇺🇸 746 78 510ms 1 Sep 2025 363rd Shanethegamer 🇺🇸 746 95 11ms 1 Sep 2024 364th zacjl 744 84 12ms 18 Sep 2024 364th xsot 🇸🇬 744 84 11ms 20 Dec 2025 366th xsot 🇸🇬 740 58 1,198ms 19 Dec 2025 367th Shanethegamer 🇺🇸 740 128 473ms 1 Sep 2024 368th FlyingPenguin223 736 94 1ms 18 Sep 2024 369th dokutan 735 96 6ms 13 Sep 2024 370th error256 734 121 448ms 24 Sep 2024 371st GolfingSuccess 🇬🇷 733 30 56ms 1 Sep 2024 371st MeWhenI 🇻🇦 733 30 63ms 8 Jun 2025 371st CaedenHarper 🇨🇦 733 30 47ms 1 Dec 2025 374th Shanethegamer 🇺🇸 733 105 4ms 1 Sep 2024 375th Shanethegamer 🇺🇸 733 122 6ms 4 Oct 2024 376th albanian-laundromat 🇺🇸 733 232 1,223ms 15 Oct 2025 377th targrik 731 97 12ms 8 Feb 2025 377th dokutan 731 97 10ms 15 Jun 2025 379th bitsandbeyond 🇳🇱 729 64 292ms 1 Dec 2025 380th emgordon154 728 63 1,638ms 18 Nov 2024 381st MeWhenI 🇻🇦 728 80 450ms 1 Sep 2024 381st GrayJoKing 🇦🇺 728 80 436ms 2 Sep 2024 383rd Shanethegamer 🇺🇸 728 95 2ms 2 Sep 2024 384th SirBogman 🇺🇸 727 86 10ms 2 Sep 2024 384th stefangimmillaro 727 86 11ms 2 Sep 2024 384th m-tkach 🇺🇦 727 86 11ms 2 Sep 2024 384th lynn 727 86 11ms 4 Sep 2024 384th kops-cg 727 86 10ms 11 Feb 2025 384th bzijlema 🇳🇱 727 86 12ms 14 May 2025 384th 5cw 🇺🇸 727 86 10ms 4 Aug 2025 384th ovs-code 🇩🇪 727 86 11ms 30 Nov 2025 392nd Shanethegamer 🇺🇸 725 70 263ms 5 Sep 2024 392nd MarcMush 🇫🇷 725 70 650ms 16 Sep 2024 394th janAkali 🇷🇺 725 112 371ms 12 Feb 2026 395th charliegaming 724 98 12ms 7 Sep 2024 396th dokutan 724 124 2ms 5 Sep 2024 397th jusaka 722 167 206ms 9 days ago 398th anter69 🇭🇺 718 59 76ms 25 Oct 2024 399th GolfingSuccess 🇬🇷 718 87 10ms 1 Sep 2024 399th alemelis 718 87 11ms 1 Sep 2024 First Prev 321–400 of 841 Next Last