PalindromemordnilaP in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 375th dokutan 698 86 15 Jun 2025 377th ovs-code 🇩🇪 698 128 1 Sep 2024 378th MeWhenI 🇻🇦 698 151 4 Sep 2024 379th CaedenHarper 🇨🇦 697 83 23 days ago 380th MostParsingVex 696 154 15 Sep 2024 381st frosster 694 99 21 Mar 2025 382nd mamamia5x 693 102 12 Sep 2024 383rd sean-niemann 🇺🇸 692 107 8 days ago 384th stefangimmillaro 691 90 14 Nov 2024 385th elgan65536 691 172 23 Sep 2024 386th Shanethegamer 🇺🇸 689 206 4 Sep 2024 387th retrohun 688 89 1 Sep 2024 388th sean-niemann 🇺🇸 687 114 7 Sep 2024 389th BlankSpruce 684 91 1 Sep 2024 389th ZakkkkAttackkkk 🇵🇭 684 91 1 Sep 2024 389th BREMAUCY 🇫🇷 684 91 3 Sep 2024 389th charliegaming 684 91 7 Sep 2024 389th mbittner20 684 91 9 Sep 2024 389th neihousaigaai 684 91 28 Sep 2024 389th Rubiksmath 684 91 1 Oct 2024 389th jameswmccarty 684 91 2 Dec 2024 389th croc54 684 91 12 Jan 2025 389th Pyroan 684 91 24 Feb 2025 389th WillowWispy 684 91 21 Mar 2025 389th KasperKivimaeki 🇫🇮 684 91 3 Jul 2025 389th clayboll99 684 91 15 Jul 2025 389th CaedenHarper 🇨🇦 684 91 23 days ago 403rd MeWhenI 🇻🇦 682 88 1 Sep 2024 403rd error256 682 88 10 Sep 2024 405th edsrzf 🇳🇿 682 118 25 Jun 2025 406th GolfingSuccess 🇬🇷 682 131 1 Sep 2024 407th emgordon154 682 288 2 Oct 2024 408th DialFrost 🇸🇬 681 62 30 Jan 2025 409th olleicua 🇺🇸 679 104 11 Sep 2024 410th edsrzf 🇳🇿 678 92 10 Oct 2024 411th BlankSpruce 678 158 1 Sep 2024 412th fourth-bit 677 92 4 Sep 2024 412th bnic24 677 92 5 Sep 2024 414th dokutan 675 156 1 Sep 2024 415th dcgjb 674 69 11 Sep 2024 416th edsrzf 🇳🇿 674 104 27 Jan 2025 417th DialFrost 🇸🇬 673 76 1 Aug 2025 418th madex 🇩🇪 671 177 17 Sep 2024 419th stefangimmillaro 670 63 2 Sep 2024 419th SirBogman 🇺🇸 670 63 5 Sep 2024 421st adamnielson42 🇺🇸 670 93 7 Oct 2024 421st smiksky 🇺🇸 670 93 16 Oct 2024 421st guilhem-roy 🇫🇷 670 93 31 May 2025 424th MeWhenI 🇻🇦 670 117 2 Sep 2024 424th stefangimmillaro 670 117 2 Sep 2024 426th dokutan 669 78 3 Sep 2024 427th chunes3 🇺🇸 668 112 1 Sep 2024 428th stefangimmillaro 668 179 4 Sep 2024 429th kenthie42 667 132 14 Sep 2024 430th madeforlosers 666 106 23 Oct 2024 431st mousetail 🇳🇱 662 94 1 Sep 2024 431st ljweel 662 94 12 Sep 2024 431st jtaxen 662 94 26 Sep 2024 431st qpwoeirut 662 94 7 Feb 2025 435th GolfingSuccess 🇬🇷 662 162 1 Sep 2024 435th ovs-code 🇩🇪 662 162 1 Sep 2024 437th Shanethegamer 🇺🇸 660 91 5 Sep 2024 438th edsrzf 🇳🇿 660 104 22 May 2025 439th Maznek 660 107 8 Oct 2024 440th dokutan 659 64 23 Feb 2025 441st msbranicky 656 95 1 Sep 2024 441st Bulmenisaurus 656 95 4 Sep 2024 441st btjones0 656 95 13 Sep 2024 441st jfallon1997 656 95 26 Sep 2024 445th DialFrost 🇸🇬 656 181 12 Apr 2025 445th error256 656 181 22 May 2025 447th msbranicky 655 95 8 Jan 2025 448th lukechampine 653 200 7 Jun 2025 449th Shanethegamer 🇺🇸 652 135 1 Sep 2024 450th CaedenHarper 🇨🇦 650 201 3 Jan 2025 Prev 376–450 of 643 Next