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 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 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 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 Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 451st CaedenHarper 🇨🇦 650 201 3 Jan 2025 452nd TFeld00 🇩🇰 649 65 3 Sep 2024 453rd fgrosshans 🇫🇷 649 96 1 Sep 2024 453rd mm1013g 649 96 2 Sep 2024 453rd Mikey-Beep 🇬🇧 649 96 2 Sep 2024 453rd JudeTyrrell 649 96 22 Sep 2024 457th ShiraJoseph 🇺🇸 648 109 22 Sep 2024 458th voytxt 🇨🇿 646 93 17 Apr 2025 459th error256 645 106 18 Apr 2025 460th stefangimmillaro 643 71 3 Sep 2024 461st kg583 🇺🇸 643 109 13 days ago 462nd msbranicky 643 203 1 Sep 2024 463rd scpchicken 🇵🇼 642 97 8 Sep 2024 463rd Carlettos1 642 97 14 Sep 2024 465th Waffle3z 642 107 2 Oct 2024 466th mrxz 🇳🇱 642 110 22 Sep 2024 466th weliveinhell 🇭🇹 642 110 28 Sep 2024 468th albanian-laundromat 641 193 15 days ago 469th BlankSpruce 639 140 1 Sep 2024 470th SirBogman 🇺🇸 637 73 23 Jul 2025 471st aDwarfNamedUrist 636 138 4 Sep 2024 472nd pickerj 635 98 13 Sep 2024 472nd dtbao20 🇻🇳 635 98 30 Sep 2024 472nd YAJUE114514 635 98 30 Jul 2025 475th Shanethegamer 🇺🇸 634 72 1 Sep 2024 475th anter69 🇭🇺 634 72 25 Oct 2024 477th Ripick 633 127 6 Sep 2024 478th stefangimmillaro 632 188 4 Jun 2025 479th KatieLG 🇬🇧 631 112 1 Sep 2024 479th CaedenHarper 🇨🇦 631 112 14 days ago 481st olleicua 🇺🇸 630 67 6 Sep 2024 482nd alexeldridge 629 99 14 Sep 2024 483rd h3ra993huskp 🇯🇵 626 191 27 Dec 2024 484th BalaM314 625 113 4 Feb 2025 485th cthierfelder 🇲🇨 624 193 10 hours ago 486th Kacarott 🇦🇺 623 100 3 Sep 2024 487th SirBogman 🇺🇸 622 59 23 Jul 2025 488th snoozingnewt 🇺🇸 622 93 31 Mar 2025 489th Shanethegamer 🇺🇸 620 68 1 Sep 2024 489th emgordon154 620 68 1 Sep 2024 489th rvs314 620 68 24 Sep 2024 492nd KrausRaus 🇺🇸 620 114 1 Sep 2024 493rd emgordon154 619 41 30 Jul 2025 494th DialFrost 🇸🇬 619 111 22 Nov 2024 495th lifthrasiir 🇰🇷 618 227 11 Dec 2024 496th madex 🇩🇪 617 101 1 Sep 2024 496th RedzGoose 🇦🇺 617 101 15 Oct 2024 496th Flekay 🇩🇪 617 101 10 Jul 2025 499th KatieLG 🇬🇧 612 69 1 Sep 2024 500th sciencejiho 611 102 13 Sep 2024 500th FortuiteMan 🇫🇷 611 102 25 Sep 2024 502nd Natanaelel 🇸🇪 611 112 15 May 2025 503rd aliakseikalosha 611 144 5 Sep 2024 504th Shanethegamer 🇺🇸 610 102 25 Oct 2024 504th dokutan 610 102 26 Oct 2024 506th BambooleanLogic 🇸🇪 609 116 19 Nov 2024 506th acollett89 609 116 4 Aug 2025 508th msbranicky 606 86 16 Sep 2024 509th julian-hoelz 605 103 16 Sep 2024 509th StefanHabel 🇨🇦 605 103 22 Mar 2025 511th dokutan 601 76 3 Sep 2024 512th Shanethegamer 🇺🇸 600 134 1 Sep 2024 513th ComputerKWasTaken 🇺🇸 599 104 2 Sep 2024 513th elgan65536 599 104 23 Sep 2024 515th emgordon154 599 138 1 Jan 2025 516th dokutan 599 147 3 Nov 2024 517th inventshah 597 150 1 Sep 2024 518th Shanethegamer 🇺🇸 595 177 4 Sep 2024 519th mousetail 🇳🇱 594 105 3 Sep 2024 520th BREMAUCY 🇫🇷 594 316 7 Aug 2025 521st KatieLG 🇬🇧 593 77 1 Sep 2024 522nd CutSandstone 587 106 21 Dec 2024 523rd Shanethegamer 🇺🇸 584 120 2 Sep 2024 524th DialFrost 🇸🇬 583 107 1 Sep 2024 525th galloj 🇨🇿 582 107 4 Sep 2024 Prev 451–525 of 647 Next