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 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 451st adamnielson42 🇺🇸 671 93 13ms 7 Oct 2024 451st smiksky 🇺🇸 671 93 15ms 16 Oct 2024 451st guilhem-roy 🇫🇷 671 93 15ms 31 May 2025 454th stefangimmillaro 669 63 32ms 2 Sep 2024 454th SirBogman 🇺🇸 669 63 32ms 5 Sep 2024 456th dokutan 669 78 173ms 3 Sep 2024 457th alicethecatwhisperermeow 669 132 365ms 14 Sep 2024 458th madeforlosers 668 106 8ms 23 Oct 2024 459th chunes3 🇺🇸 668 112 62ms 1 Sep 2024 460th DialFrost 🇸🇬 666 76 14ms 1 Aug 2025 461st mousetail 🇳🇱 664 94 16ms 1 Sep 2024 461st ljweel 664 94 13ms 12 Sep 2024 463rd Maznek 662 107 9ms 8 Oct 2024 464th Shanethegamer 🇺🇸 661 91 139ms 5 Sep 2024 465th kg583 🇺🇸 661 106 5ms 26 Sep 2025 466th DialFrost 🇸🇬 661 181 197ms 12 Apr 2025 466th error256 661 181 173ms 22 May 2025 468th GolfingSuccess 🇬🇷 660 162 373ms 1 Sep 2024 468th ovs-code 🇩🇪 660 162 2,217ms 1 Sep 2024 470th dokutan 659 64 33ms 23 Feb 2025 471st msbranicky 657 95 13ms 1 Sep 2024 471st Bulmenisaurus 657 95 15ms 4 Sep 2024 471st btjones0 657 95 14ms 13 Sep 2024 471st jfallon1997 657 95 13ms 26 Sep 2024 471st jacekwladzinski 657 95 11ms 7 Oct 2025 471st aalec 657 95 15ms 27 days ago 477th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 478th msbranicky 656 136 2ms 1 Sep 2024 479th msbranicky 655 95 1,996ms 8 Jan 2025 480th Shanethegamer 🇺🇸 655 135 374ms 1 Sep 2024 481st albanian-laundromat 655 189 42ms 14 Sep 2025 482nd lukechampine 655 200 251ms 7 Jun 2025 482nd jerrandolph 655 200 260ms 21 Sep 2025 484th fgrosshans 🇫🇷 650 96 14ms 1 Sep 2024 484th mm1013g 650 96 11ms 2 Sep 2024 484th Mikey-Beep 🇬🇧 650 96 13ms 2 Sep 2024 484th JudeTyrrell 650 96 13ms 22 Sep 2024 488th TFeld00 🇩🇰 649 65 32ms 3 Sep 2024 489th ShiraJoseph 🇺🇸 649 109 9ms 22 Sep 2024 490th voytxt 🇨🇿 647 93 132ms 17 Apr 2025 491st msbranicky 646 203 255ms 1 Sep 2024 492nd error256 645 106 13ms 18 Apr 2025 493rd Waffle3z 645 107 2ms 2 Oct 2024 494th snoozingnewt 🇨🇦 644 186 8ms 1 Sep 2024 495th stefangimmillaro 643 71 819ms 3 Sep 2024 496th scpchicken 🇵🇼 643 97 394ms 8 Sep 2024 496th Carlettos1 643 97 15ms 14 Sep 2024 498th mrxz 🇳🇱 643 110 9ms 22 Sep 2024 498th weliveinhell 🇭🇹 643 110 9ms 28 Sep 2024 500th BlankSpruce 641 140 2ms 1 Sep 2024 501st emgordon154 639 113 98ms 2 days ago 502nd aDwarfNamedUrist 638 138 112ms 4 Sep 2024 503rd stefangimmillaro 638 151 342ms 6 Oct 2025 504th SirBogman 🇺🇸 637 73 280ms 23 Jul 2025 505th pickerj 637 98 16ms 13 Sep 2024 505th dtbao20 🇻🇳 637 98 19ms 30 Sep 2024 505th YAJUE114514 637 98 14ms 30 Jul 2025 508th stefangimmillaro 636 188 195ms 4 Jun 2025 509th emgordon154 635 40 3ms 16 days ago 510th Shanethegamer 🇺🇸 634 72 861ms 1 Sep 2024 510th anter69 🇭🇺 634 72 858ms 25 Oct 2024 512th Ripick 633 127 349ms 6 Sep 2024 513th CaedenHarper 🇨🇦 632 112 10ms 22 Aug 2025 514th alexeldridge 630 99 14ms 14 Sep 2024 514th Just4FunCoder 630 99 13ms 14 Sep 2025 514th 0xjac 🇨🇭 630 99 12ms 11 days ago 517th olleicua 🇺🇸 629 67 35ms 6 Sep 2024 518th BalaM314 626 113 9ms 4 Feb 2025 519th Kacarott 🇦🇺 624 100 14ms 3 Sep 2024 520th cthierfelder 🇲🇨 624 193 62ms 5 Sep 2025 521st SirBogman 🇺🇸 622 59 108ms 23 Jul 2025 522nd DialFrost 🇸🇬 622 111 2ms 22 Nov 2024 523rd KrausRaus 🇺🇸 621 114 11ms 1 Sep 2024 523rd snoozingnewt 🇨🇦 621 114 9ms 12 Oct 2025 525th Shanethegamer 🇺🇸 620 68 32ms 1 Sep 2024 First Prev 451–525 of 697 Next Last