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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 299th SirBogman 🇺🇸 810 78 458ms 4 Sep 2024 299th error256 810 78 500ms 4 Sep 2024 299th sean-niemann 🇺🇸 810 78 461ms 8 Jan 2025 299th commandblockguy 🇺🇸 810 78 394ms 1 Sep 2025 299th Babafaba 810 78 400ms 17 days ago 306th MostParsingVex 809 153 43ms 3 Oct 2024 307th primo-ppcg 🇹🇭 809 232 144ms 5 Aug 2025 308th JayXon 🇺🇸 808 243 1,696ms 10 Jul 2025 309th SirBogman 🇺🇸 806 155 47ms 3 Sep 2024 310th error256 805 93 70ms 2 Sep 2024 311th GolfingSuccess 🇬🇷 805 210 975ms 8 Feb 2025 312th msbranicky 804 95 11ms 1 Sep 2024 312th Bulmenisaurus 804 95 12ms 4 Sep 2024 312th btjones0 804 95 10ms 13 Sep 2024 312th jfallon1997 804 95 10ms 26 Sep 2024 312th jacekwladzinski 804 95 15ms 7 Oct 2025 317th RyanMHsiao 804 244 1,656ms 25 Sep 2024 318th error256 803 150 29ms 5 May 2025 319th ovs-code 🇩🇪 802 175 9ms 30 Sep 2024 320th m-tkach 🇺🇦 802 177 30ms 27 Sep 2024 321st emgordon154 801 211 822ms 24 Jan 2025 322nd nwellnhof 🇩🇪 800 134 396ms 2 Sep 2024 322nd tailorspy 800 134 462ms 16 Sep 2024 324th MeWhenI 🇻🇦 799 50 4ms 1 Sep 2024 324th retrohun 799 50 6ms 9 Mar 2025 326th MeWhenI 🇻🇦 798 39 35ms 2 Sep 2024 327th fgrosshans 🇫🇷 796 96 11ms 1 Sep 2024 327th Mikey-Beep 🇬🇧 796 96 10ms 2 Sep 2024 327th JudeTyrrell 796 96 10ms 22 Sep 2024 330th Shanethegamer 🇺🇸 796 105 6ms 1 Sep 2024 330th kg583 🇺🇸 796 105 5ms 28 Sep 2025 332nd namelessiw 796 111 316ms 22 Apr 2025 333rd MeWhenI 🇻🇦 795 101 118ms 3 Sep 2024 334th lifthrasiir 🇰🇷 793 32 2ms 29 Nov 2024 335th MeWhenI 🇻🇦 790 80 520ms 1 Sep 2024 335th GrayJoKing 🇦🇺 790 80 460ms 2 Sep 2024 337th stefangimmillaro 789 166 257ms 4 Sep 2024 338th o0BlackDragon0o 788 97 12ms 8 Sep 2024 338th Bombalech 788 97 11ms 8 Sep 2024 338th scpchicken 🇵🇼 788 97 272ms 8 Sep 2024 338th Carlettos1 788 97 12ms 14 Sep 2024 342nd mousetail 🇳🇱 785 62 67ms 3 Sep 2024 343rd MeWhenI 🇻🇦 785 157 17ms 7 Sep 2024 344th dokutan 784 124 3ms 5 Sep 2024 345th sean-niemann 🇺🇸 782 113 350ms 5 Sep 2024 346th emplv 🇱🇻 781 79 137ms 1 Nov 2024 347th rzv-me 780 80 4ms 5 Oct 2024 348th HumanoidCPU 780 98 11ms 2 Sep 2024 348th dtbao20 🇻🇳 780 98 17ms 30 Sep 2024 348th YAJUE114514 780 98 12ms 30 Jul 2025 348th luuumine 🇫🇷 780 98 9ms 23 days ago 352nd KingSkyrock 🇺🇸 777 91 9ms 14 Oct 2024 353rd CatsAreFluffy 775 64 51ms 4 Nov 2024 354th stefangimmillaro 775 114 400ms 4 Sep 2024 355th dokutan 773 104 146ms 1 Sep 2024 356th albanian-laundromat 772 69 840ms 12 Sep 2025 357th jatloe 772 99 11ms 4 Sep 2024 357th alexeldridge 772 99 10ms 14 Sep 2024 357th Just4FunCoder 772 99 11ms 14 Sep 2025 360th the-zammers 772 114 130ms 1 Dec 2024 361st AlephSquirrel 772 248 3ms 29 Sep 2024 362nd error256 771 139 441ms 24 Sep 2024 363rd Kacarott 🇦🇺 764 100 11ms 3 Sep 2024 363rd Artemis21 🇬🇧 764 100 10ms 4 Jan 2025 365th emgordon154 764 156 352ms 4 Mar 2025 366th dokutan 761 83 510ms 3 Sep 2024 366th lifthrasiir 🇰🇷 761 83 480ms 2 Dec 2024 366th albanian-laundromat 761 83 666ms 4 Aug 2025 366th CaedenHarper 🇨🇦 761 83 514ms 9 Aug 2025 370th error256 759 116 130ms 2 Sep 2024 371st madex 🇩🇪 757 101 12ms 1 Sep 2024 371st RedzGoose 🇦🇺 757 101 10ms 15 Oct 2024 371st JunkIce 757 101 11ms 25 Oct 2024 371st snoozingnewt 🇺🇸 757 101 10ms 31 Mar 2025 371st Flekay 🇩🇪 757 101 13ms 10 Jul 2025 First Prev 301–375 of 682 Next Last