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 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 Trinomial Triangle 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 451st DialFrost 🇸🇬 656 181 12 Apr 2025 451st error256 656 181 22 May 2025 453rd msbranicky 655 95 8 Jan 2025 454th albanian-laundromat 655 189 13 days ago 455th lukechampine 655 200 7 Jun 2025 455th jerrandolph 655 200 6 days ago 457th Shanethegamer 🇺🇸 653 135 1 Sep 2024 458th CaedenHarper 🇨🇦 652 201 3 Jan 2025 459th TFeld00 🇩🇰 649 65 3 Sep 2024 460th fgrosshans 🇫🇷 649 96 1 Sep 2024 460th mm1013g 649 96 2 Sep 2024 460th Mikey-Beep 🇬🇧 649 96 2 Sep 2024 460th JudeTyrrell 649 96 22 Sep 2024 464th ShiraJoseph 🇺🇸 648 109 22 Sep 2024 465th voytxt 🇨🇿 646 93 17 Apr 2025 466th msbranicky 646 203 1 Sep 2024 467th error256 645 106 18 Apr 2025 468th stefangimmillaro 643 71 3 Sep 2024 469th mrxz 🇳🇱 643 110 22 Sep 2024 469th weliveinhell 🇭🇹 643 110 28 Sep 2024 471st scpchicken 🇵🇼 642 97 8 Sep 2024 471st Carlettos1 642 97 14 Sep 2024 473rd Waffle3z 642 107 2 Oct 2024 474th BlankSpruce 639 140 1 Sep 2024 475th aDwarfNamedUrist 638 138 4 Sep 2024 476th SirBogman 🇺🇸 637 73 23 Jul 2025 477th pickerj 636 98 13 Sep 2024 477th dtbao20 🇻🇳 636 98 30 Sep 2024 477th YAJUE114514 636 98 30 Jul 2025 480th Shanethegamer 🇺🇸 634 72 1 Sep 2024 480th anter69 🇭🇺 634 72 25 Oct 2024 482nd Ripick 633 127 6 Sep 2024 483rd stefangimmillaro 632 188 4 Jun 2025 484th KatieLG 🇬🇧 631 112 1 Sep 2024 484th CaedenHarper 🇨🇦 631 112 22 Aug 2025 486th olleicua 🇺🇸 630 67 6 Sep 2024 487th alexeldridge 629 99 14 Sep 2024 487th Just4FunCoder 629 99 13 days ago 489th BalaM314 625 113 4 Feb 2025 490th cthierfelder 🇲🇨 624 193 21 days ago 491st Kacarott 🇦🇺 623 100 3 Sep 2024 492nd SirBogman 🇺🇸 622 59 23 Jul 2025 493rd snoozingnewt 🇺🇸 622 93 31 Mar 2025 494th Shanethegamer 🇺🇸 620 68 1 Sep 2024 494th emgordon154 620 68 1 Sep 2024 494th rvs314 620 68 24 Sep 2024 497th KrausRaus 🇺🇸 620 114 1 Sep 2024 498th emgordon154 619 41 30 Jul 2025 499th MeWhenI 🇻🇦 619 86 12 days ago 500th DialFrost 🇸🇬 619 111 22 Nov 2024 501st lifthrasiir 🇰🇷 618 227 11 Dec 2024 502nd madex 🇩🇪 617 101 1 Sep 2024 502nd RedzGoose 🇦🇺 617 101 15 Oct 2024 502nd Flekay 🇩🇪 617 101 10 Jul 2025 505th KatieLG 🇬🇧 612 69 1 Sep 2024 506th aliakseikalosha 612 144 5 Sep 2024 507th sciencejiho 611 102 13 Sep 2024 507th FortuiteMan 🇫🇷 611 102 25 Sep 2024 509th Natanaelel 🇸🇪 611 112 15 May 2025 510th Shanethegamer 🇺🇸 610 102 25 Oct 2024 510th dokutan 610 102 26 Oct 2024 512th BambooleanLogic 🇸🇪 609 116 19 Nov 2024 512th acollett89 609 116 4 Aug 2025 514th msbranicky 606 86 16 Sep 2024 515th emgordon154 606 138 1 Jan 2025 516th julian-hoelz 605 103 16 Sep 2024 516th StefanHabel 🇨🇦 605 103 22 Mar 2025 518th dokutan 601 76 3 Sep 2024 519th Shanethegamer 🇺🇸 600 134 1 Sep 2024 520th dokutan 600 147 3 Nov 2024 521st ComputerKWasTaken 🇺🇸 599 104 2 Sep 2024 521st elgan65536 599 104 23 Sep 2024 523rd inventshah 597 150 1 Sep 2024 524th Shanethegamer 🇺🇸 595 177 4 Sep 2024 525th mousetail 🇳🇱 594 105 3 Sep 2024 Prev 451–525 of 657 Next