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 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 Chars Time Submitted 450th ovs-code 🇩🇪 662 162 2,476ms 1 Sep 2024 452nd kg583 🇺🇸 661 106 8ms 26 Sep 2025 453rd Maznek 661 107 11ms 8 Oct 2024 454th Shanethegamer 🇺🇸 660 91 143ms 5 Sep 2024 455th dokutan 659 64 34ms 23 Feb 2025 456th DialFrost 🇸🇬 659 181 199ms 12 Apr 2025 456th error256 659 181 190ms 22 May 2025 458th NickTheEASDude 🇺🇸 657 105 2ms 18 days ago 459th msbranicky 656 95 11ms 1 Sep 2024 459th Bulmenisaurus 656 95 12ms 4 Sep 2024 459th btjones0 656 95 10ms 13 Sep 2024 459th jfallon1997 656 95 10ms 26 Sep 2024 459th jacekwladzinski 656 95 15ms 17 days ago 464th msbranicky 655 95 2,633ms 8 Jan 2025 465th Shanethegamer 🇺🇸 655 135 394ms 1 Sep 2024 466th albanian-laundromat 655 189 51ms 14 Sep 2025 467th lukechampine 655 200 292ms 7 Jun 2025 467th jerrandolph 655 200 288ms 21 Sep 2025 469th CaedenHarper 🇨🇦 652 201 269ms 3 Jan 2025 470th TFeld00 🇩🇰 649 65 36ms 3 Sep 2024 471st fgrosshans 🇫🇷 649 96 11ms 1 Sep 2024 471st mm1013g 649 96 11ms 2 Sep 2024 471st Mikey-Beep 🇬🇧 649 96 10ms 2 Sep 2024 471st JudeTyrrell 649 96 10ms 22 Sep 2024 475th ShiraJoseph 🇺🇸 649 109 9ms 22 Sep 2024 476th voytxt 🇨🇿 646 93 158ms 17 Apr 2025 477th msbranicky 646 203 250ms 1 Sep 2024 478th error256 645 106 18ms 18 Apr 2025 479th Waffle3z 645 107 2ms 2 Oct 2024 480th stefangimmillaro 643 71 961ms 3 Sep 2024 481st scpchicken 🇵🇼 643 97 272ms 8 Sep 2024 481st Carlettos1 643 97 12ms 14 Sep 2024 483rd mrxz 🇳🇱 643 110 9ms 22 Sep 2024 483rd weliveinhell 🇭🇹 643 110 8ms 28 Sep 2024 485th BlankSpruce 641 140 2ms 1 Sep 2024 486th aDwarfNamedUrist 638 138 135ms 4 Sep 2024 487th stefangimmillaro 638 151 491ms 19 days ago 488th pickerj 636 98 12ms 13 Sep 2024 488th dtbao20 🇻🇳 636 98 17ms 30 Sep 2024 488th YAJUE114514 636 98 12ms 30 Jul 2025 491st Shanethegamer 🇺🇸 634 72 1,020ms 1 Sep 2024 491st anter69 🇭🇺 634 72 997ms 25 Oct 2024 493rd SirBogman 🇺🇸 634 73 281ms 23 Jul 2025 494th stefangimmillaro 634 188 211ms 4 Jun 2025 495th Ripick 633 127 438ms 6 Sep 2024 496th CaedenHarper 🇨🇦 632 112 12ms 22 Aug 2025 497th olleicua 🇺🇸 630 67 37ms 6 Sep 2024 498th alexeldridge 630 99 10ms 14 Sep 2024 498th Just4FunCoder 630 99 11ms 14 Sep 2025 500th BalaM314 626 113 9ms 4 Feb 2025 501st cthierfelder 🇲🇨 624 193 65ms 5 Sep 2025 502nd Kacarott 🇦🇺 623 100 11ms 3 Sep 2024 503rd SirBogman 🇺🇸 622 59 138ms 23 Jul 2025 504th DialFrost 🇸🇬 622 111 2ms 22 Nov 2024 505th KrausRaus 🇺🇸 621 114 36ms 1 Sep 2024 505th snoozingnewt 🇺🇸 621 114 9ms 12 days ago 507th Shanethegamer 🇺🇸 620 68 35ms 1 Sep 2024 507th emgordon154 620 68 36ms 1 Sep 2024 507th rvs314 620 68 36ms 24 Sep 2024 510th emgordon154 619 41 3ms 30 Jul 2025 511th MeWhenI 🇻🇦 619 86 740ms 15 Sep 2025 512th lifthrasiir 🇰🇷 618 227 47ms 11 Dec 2024 513th madex 🇩🇪 617 101 12ms 1 Sep 2024 513th RedzGoose 🇦🇺 617 101 10ms 15 Oct 2024 513th Flekay 🇩🇪 617 101 13ms 10 Jul 2025 516th Andrey-Plotnikov 615 115 9ms 24 days ago 517th aliakseikalosha 614 144 368ms 5 Sep 2024 518th sciencejiho 611 102 10ms 13 Sep 2024 518th FortuiteMan 🇫🇷 611 102 10ms 25 Sep 2024 520th Natanaelel 🇸🇪 611 112 20ms 15 May 2025 521st Shanethegamer 🇺🇸 610 102 2,603ms 25 Oct 2024 521st dokutan 610 102 2,317ms 26 Oct 2024 523rd BambooleanLogic 🇸🇪 610 116 9ms 19 Nov 2024 523rd acollett89 610 116 10ms 4 Aug 2025 525th msbranicky 606 86 175ms 16 Sep 2024 First Prev 451–525 of 676 Next Last