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 451st aksyristos 688 111 12ms 1 Sep 2024 451st wh3n3v3r 🇨🇿 688 111 10ms 11 Nov 2024 451st AstroOrbis 688 111 10ms 30 Jun 2025 454th MeWhenI 🇻🇦 688 140 1 Sep 2024 455th JunkIce 687 92 811ms 3 Dec 2024 456th GolfingSuccess 🇬🇷 685 131 2ms 1 Sep 2024 457th kaascevich 682 116 15 Sep 2025 458th edsrzf 🇳🇿 682 118 432ms 25 Jun 2025 459th emgordon154 682 288 2 Oct 2024 460th DialFrost 🇸🇬 681 62 41ms 30 Jan 2025 461st DialFrost 🇸🇬 681 118 89ms 22 Jun 2025 462nd snoozingnewt 🇺🇸 680 93 795ms 31 Mar 2025 463rd olleicua 🇺🇸 680 104 11 Sep 2024 463rd charliegaming 680 104 28 Nov 2024 465th edsrzf 🇳🇿 678 92 10 Oct 2024 466th BlankSpruce 678 158 71ms 1 Sep 2024 467th MeWhenI 🇻🇦 677 117 2 Sep 2024 467th stefangimmillaro 677 117 2 Sep 2024 469th DialFrost 🇸🇬 673 76 16ms 1 Aug 2025 470th madex 🇩🇪 673 177 222ms 17 Sep 2024 471st dcgjb 671 69 338ms 11 Sep 2024 472nd stefangimmillaro 670 63 34ms 2 Sep 2024 472nd SirBogman 🇺🇸 670 63 34ms 5 Sep 2024 474th alicethecatwhisperermeow 669 132 14 Sep 2024 475th chunes3 🇺🇸 668 112 75ms 1 Sep 2024 476th madeforlosers 667 106 23 Oct 2024 477th voytxt 🇨🇿 664 93 17 Apr 2025 478th edsrzf 🇳🇿 663 104 2ms 22 May 2025 479th GolfingSuccess 🇬🇷 662 162 417ms 1 Sep 2024 479th ovs-code 🇩🇪 662 162 2,476ms 1 Sep 2024 481st Maznek 661 107 8 Oct 2024 481st dokutan 661 107 5 Jun 2025 483rd dokutan 660 79 3 Sep 2024 484th LeoCh01 659 116 10ms 1 Sep 2024 485th DialFrost 🇸🇬 659 181 199ms 12 Apr 2025 485th error256 659 181 190ms 22 May 2025 487th NickTheEASDude 🇺🇸 657 105 2ms 15 days ago 488th msbranicky 655 95 8 Jan 2025 489th Shanethegamer 🇺🇸 655 135 1 Sep 2024 490th albanian-laundromat 655 189 14 Sep 2025 491st lukechampine 655 200 292ms 7 Jun 2025 491st jerrandolph 655 200 288ms 21 Sep 2025 493rd CaedenHarper 🇨🇦 652 201 287ms 3 Jan 2025 494th Shanethegamer 🇺🇸 650 95 8 Jan 2025 495th TFeld00 🇩🇰 649 65 36ms 3 Sep 2024 496th ShiraJoseph 🇺🇸 649 109 22 Sep 2024 497th msbranicky 646 203 299ms 1 Sep 2024 498th error256 645 106 18ms 18 Apr 2025 499th Waffle3z 645 107 2ms 2 Oct 2024 500th stefangimmillaro 643 71 3 Sep 2024 501st mrxz 🇳🇱 643 110 22 Sep 2024 501st weliveinhell 🇭🇹 643 110 28 Sep 2024 503rd Zhenyu-Bo 642 119 10ms 1 Aug 2025 504th BlankSpruce 641 140 2ms 1 Sep 2024 505th anter69 🇭🇺 639 66 35ms 25 Oct 2024 506th aDwarfNamedUrist 638 138 135ms 4 Sep 2024 507th stefangimmillaro 638 151 491ms 16 days ago 508th lhulinsky 637 120 14ms 23 Oct 2024 508th arjunarya1 637 120 10ms 11 Sep 2025 510th Shanethegamer 🇺🇸 634 72 1 Sep 2024 510th anter69 🇭🇺 634 72 25 Oct 2024 512th SirBogman 🇺🇸 634 73 281ms 23 Jul 2025 513th stefangimmillaro 634 188 211ms 4 Jun 2025 514th Ripick 633 127 438ms 6 Sep 2024 515th KatieLG 🇬🇧 632 112 1 Sep 2024 515th CaedenHarper 🇨🇦 632 112 22 Aug 2025 517th dokutan 632 120 7ms 1 Sep 2024 517th Shanethegamer 🇺🇸 632 120 8ms 2 Sep 2024 519th olleicua 🇺🇸 630 67 37ms 6 Sep 2024 520th RedzGoose 🇦🇺 626 101 544ms 15 Oct 2024 521st BalaM314 626 113 4 Feb 2025 522nd kevinnaviapaiva 626 122 12ms 16 Feb 2025 523rd cthierfelder 🇲🇨 624 193 5 Sep 2025 524th SirBogman 🇺🇸 622 59 23 Jul 2025 525th DialFrost 🇸🇬 622 111 2ms 22 Nov 2024 First Prev 451–525 of 679 Next Last