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 526th emgordon154 606 138 14ms 1 Jan 2025 527th julian-hoelz 605 103 10ms 16 Sep 2024 527th StefanHabel 🇨🇦 605 103 96ms 22 Mar 2025 529th dokutan 601 76 852ms 3 Sep 2024 530th dokutan 601 147 372ms 3 Nov 2024 531st Arkadios200 600 132 113ms 13 days ago 532nd Shanethegamer 🇺🇸 600 134 429ms 1 Sep 2024 533rd ComputerKWasTaken 🇺🇸 599 104 10ms 2 Sep 2024 533rd elgan65536 599 104 11ms 23 Sep 2024 533rd NickTheEASDude 🇺🇸 599 104 10ms 18 days ago 536th inventshah 598 150 2ms 1 Sep 2024 537th Shanethegamer 🇺🇸 595 177 56ms 4 Sep 2024 538th mousetail 🇳🇱 594 105 4ms 3 Sep 2024 539th BREMAUCY 🇫🇷 594 316 17ms 7 Aug 2025 540th KatieLG 🇬🇧 593 77 918ms 1 Sep 2024 541st CaedenHarper 🇨🇦 593 149 363ms 8 days ago 542nd CutSandstone 588 106 13ms 21 Dec 2024 543rd Shanethegamer 🇺🇸 584 120 8ms 2 Sep 2024 544th DialFrost 🇸🇬 583 107 5ms 1 Sep 2024 544th galloj 🇨🇿 583 107 10ms 4 Sep 2024 544th jared-hughes 583 107 14ms 10 Sep 2024 544th nstearns96 🇬🇧 583 107 11ms 13 Nov 2024 544th brochmann 🇸🇪 583 107 10ms 8 days ago 549th cbrt-x 583 151 142ms 11 Sep 2024 550th Upload-and-View 🇺🇦 580 119 2ms 23 Jul 2025 551st GeorgeStechman 🇬🇧 580 122 10ms 5 Nov 2024 551st gigaprofisi 🇺🇸 580 122 12ms 10 Aug 2025 553rd snoozingnewt 🇺🇸 580 226 280ms 1 Sep 2024 554th JesseNoEyes 🇺🇸 577 108 10ms 30 Sep 2024 555th xyangst 575 123 10ms 15 Oct 2024 556th JohandeRuiter 🇳🇱 575 156 2ms 2 Sep 2024 557th RedzGoose 🇦🇺 574 101 544ms 15 Oct 2024 558th Mabeloid 🇳🇴 572 109 11ms 1 Sep 2024 558th MassimoParisi 572 109 10ms 18 Sep 2024 558th klixel 🇨🇦 572 109 15ms 21 Sep 2024 558th NotNoper 572 109 12ms 29 Oct 2024 558th za3k 572 109 11ms 15 Jul 2025 563rd TeodorDyakov 🇧🇬 564 159 2ms 6 Sep 2025 564th aksyristos 562 111 12ms 1 Sep 2024 564th AstroOrbis 562 111 10ms 30 Jun 2025 566th tomh1012 561 126 11ms 18 Sep 2025 567th dokutan 561 132 4ms 1 Sep 2024 568th MostParsingVex 561 160 43ms 30 Sep 2024 569th RedzGoose 🇦🇺 553 145 111ms 9 Sep 2024 570th msbranicky 548 135 4ms 1 Sep 2024 571st alphafalfa 540 105 4ms 1 Nov 2024 572nd KatieLG 🇬🇧 539 128 2ms 23 days ago 573rd Shanethegamer 🇺🇸 538 107 304ms 1 Sep 2024 574th LeoCh01 537 116 10ms 1 Sep 2024 575th Shanethegamer 🇺🇸 535 91 25ms 1 Sep 2024 576th snoozingnewt 🇺🇸 534 79 34ms 13 days ago 577th albanian-laundromat 533 352 16ms 18 Sep 2025 578th Mabeloid 🇳🇴 532 109 809ms 17 Sep 2024 579th trijin 529 118 4ms 5 Oct 2024 580th MostParsingVex 528 97 20ms 2 Oct 2024 581st emgordon154 527 133 14ms 16 Dec 2024 582nd Shanethegamer 🇺🇸 526 183 466ms 24 Sep 2025 583rd Zhenyu-Bo 524 119 10ms 1 Aug 2025 584th tomh1012 523 169 319ms 17 Sep 2025 585th Misaka18520 520 206 414ms 14 Sep 2024 586th lhulinsky 519 120 14ms 23 Oct 2024 586th arjunarya1 519 120 10ms 11 Sep 2025 588th error256 515 134 2ms 24 Sep 2024 589th CaedenHarper 🇨🇦 512 188 531ms 22 days ago 590th kevinnaviapaiva 511 122 12ms 16 Feb 2025 591st eddvrs 507 123 10ms 29 Sep 2024 592nd h3ra993huskp 🇯🇵 504 191 417ms 27 Dec 2024 593rd yokasuretsu 503 124 14ms 10 Jul 2025 593rd hamilton-bonds 503 124 10ms 24 Jul 2025 595th madex 🇩🇪 502 84 39ms 1 Sep 2024 596th dbut2 🇦🇺 502 261 290ms 3 Sep 2024 597th rboath 501 159 127ms 18 Dec 2024 598th LukeBridges 🇬🇧 498 142 11ms 3 Sep 2024 599th MeWhenI 🇻🇦 496 181 2ms 13 Jun 2025 600th nhausspiegel 495 126 15ms 13 Sep 2024 First Prev 526–600 of 676 Next Last