PalindromemordnilaP in all languages in bytes. 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 Trinomial Triangle 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 Smooth Numbers Snake Sphenic Numbers 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 Luau 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 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 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 Trinomial Triangle 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 Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 526th KrausRaus 🇺🇸 621 114 1 Sep 2024 527th eddvrs 621 123 10ms 29 Sep 2024 528th Shanethegamer 🇺🇸 620 68 35ms 1 Sep 2024 528th emgordon154 620 68 36ms 1 Sep 2024 528th rvs314 620 68 36ms 24 Sep 2024 528th tatzyr 🇯🇵 620 68 38ms 12 days ago 532nd emgordon154 619 41 3ms 30 Jul 2025 533rd MeWhenI 🇻🇦 619 86 15 Sep 2025 534th lifthrasiir 🇰🇷 618 227 47ms 11 Dec 2024 535th yokasuretsu 616 124 14ms 10 Jul 2025 535th hamilton-bonds 616 124 10ms 24 Jul 2025 535th mossiegoat 616 124 4 days ago 538th Andrey-Plotnikov 615 115 22 days ago 539th aliakseikalosha 614 144 368ms 5 Sep 2024 540th KatieLG 🇬🇧 612 69 37ms 1 Sep 2024 541st Natanaelel 🇸🇪 611 112 20ms 15 May 2025 542nd Shanethegamer 🇺🇸 610 102 25 Oct 2024 542nd dokutan 610 102 26 Oct 2024 544th BambooleanLogic 🇸🇪 610 116 19 Nov 2024 544th acollett89 610 116 4 Aug 2025 546th msbranicky 606 86 16 Sep 2024 547th nhausspiegel 606 126 15ms 13 Sep 2024 548th emgordon154 606 138 14ms 1 Jan 2025 549th matsagad 602 127 11ms 16 Jan 2025 550th dokutan 601 76 3 Sep 2024 551st dokutan 601 147 372ms 3 Nov 2024 552nd mamamia5x 600 118 12 Sep 2024 553rd Arkadios200 600 132 113ms 10 days ago 554th Shanethegamer 🇺🇸 600 134 429ms 1 Sep 2024 555th Shanethegamer 🇺🇸 599 107 1 Sep 2024 556th inventshah 598 150 2ms 1 Sep 2024 557th xyangst 597 128 11ms 12 Oct 2024 558th MeWhenI 🇻🇦 595 177 48ms 4 Sep 2024 558th Shanethegamer 🇺🇸 595 177 56ms 4 Sep 2024 560th emgordon154 594 104 14 Nov 2024 561st mousetail 🇳🇱 594 105 3 Sep 2024 562nd BREMAUCY 🇫🇷 594 316 17ms 7 Aug 2025 563rd KatieLG 🇬🇧 593 77 1 Sep 2024 564th CaedenHarper 🇨🇦 593 149 5 days ago 565th DialFrost 🇸🇬 583 107 1 Sep 2024 566th cbrt-x 583 151 142ms 11 Sep 2024 567th dokutan 582 181 48ms 1 Sep 2024 568th Mabeloid 🇳🇴 580 109 809ms 17 Sep 2024 569th Upload-and-View 🇺🇦 580 119 2ms 23 Jul 2025 570th GeorgeStechman 🇬🇧 580 122 5 Nov 2024 570th gigaprofisi 🇺🇸 580 122 12ms 10 Aug 2025 572nd snoozingnewt 🇺🇸 580 226 282ms 1 Sep 2024 573rd xyangst 575 123 15 Oct 2024 574th JohandeRuiter 🇳🇱 575 156 2ms 2 Sep 2024 575th dokutan 570 74 39ms 20 Feb 2025 576th emgordon154 570 133 14ms 16 Dec 2024 577th TeodorDyakov 🇧🇬 564 159 2ms 6 Sep 2025 578th smiksky 🇺🇸 562 136 10ms 16 Oct 2024 579th tomh1012 561 126 18 Sep 2025 580th dokutan 561 132 4ms 1 Sep 2024 581st MostParsingVex 561 160 43ms 30 Sep 2024 582nd Stockoh 🇫🇷 558 137 9ms 17 Oct 2024 583rd brimstonetrader 554 138 15ms 17 Oct 2024 584th RedzGoose 🇦🇺 553 145 111ms 9 Sep 2024 585th msbranicky 548 135 4ms 1 Sep 2024 586th dokutan 546 113 22 Oct 2024 587th alphafalfa 540 105 4ms 1 Nov 2024 588th KatieLG 🇬🇧 539 128 2ms 19 days ago 589th mm1013g 538 142 10ms 2 Sep 2024 590th Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 591st snoozingnewt 🇺🇸 534 79 34ms 10 days ago 592nd albanian-laundromat 533 352 16ms 18 Sep 2025 593rd trijin 529 118 5 Oct 2024 594th MostParsingVex 528 97 20ms 2 Oct 2024 595th Shanethegamer 🇺🇸 526 183 466ms 27 days ago 596th pickerj 523 146 12ms 12 Sep 2024 597th tomh1012 523 169 319ms 17 Sep 2025 598th Misaka18520 520 206 414ms 14 Sep 2024 599th error256 515 134 2ms 24 Sep 2024 600th LostSyntax21 🇬🇧 513 149 10ms 2 Sep 2024 First Prev 526–600 of 679 Next Last