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 albanian-laundromat 655 189 33 hours ago 452nd lukechampine 653 200 7 Jun 2025 453rd Shanethegamer 🇺🇸 652 135 1 Sep 2024 454th CaedenHarper 🇨🇦 650 201 3 Jan 2025 455th TFeld00 🇩🇰 649 65 3 Sep 2024 456th fgrosshans 🇫🇷 649 96 1 Sep 2024 456th mm1013g 649 96 2 Sep 2024 456th Mikey-Beep 🇬🇧 649 96 2 Sep 2024 456th JudeTyrrell 649 96 22 Sep 2024 460th ShiraJoseph 🇺🇸 648 109 22 Sep 2024 461st voytxt 🇨🇿 646 93 17 Apr 2025 462nd error256 645 106 18 Apr 2025 463rd stefangimmillaro 643 71 3 Sep 2024 464th kg583 🇺🇸 643 109 22 days ago 465th msbranicky 643 203 1 Sep 2024 466th scpchicken 🇵🇼 642 97 8 Sep 2024 466th Carlettos1 642 97 14 Sep 2024 468th Waffle3z 642 107 2 Oct 2024 469th mrxz 🇳🇱 642 110 22 Sep 2024 469th weliveinhell 🇭🇹 642 110 28 Sep 2024 471st BlankSpruce 639 140 1 Sep 2024 472nd SirBogman 🇺🇸 637 73 23 Jul 2025 473rd pickerj 636 98 13 Sep 2024 473rd dtbao20 🇻🇳 636 98 30 Sep 2024 473rd YAJUE114514 636 98 30 Jul 2025 476th aDwarfNamedUrist 636 138 4 Sep 2024 477th Shanethegamer 🇺🇸 634 72 1 Sep 2024 477th anter69 🇭🇺 634 72 25 Oct 2024 479th Ripick 633 127 6 Sep 2024 480th stefangimmillaro 632 188 4 Jun 2025 481st KatieLG 🇬🇧 631 112 1 Sep 2024 481st CaedenHarper 🇨🇦 631 112 23 days ago 483rd olleicua 🇺🇸 630 67 6 Sep 2024 484th alexeldridge 629 99 14 Sep 2024 484th Just4FunCoder 629 99 30 hours ago 486th h3ra993huskp 🇯🇵 626 191 27 Dec 2024 487th BalaM314 625 113 4 Feb 2025 488th cthierfelder 🇲🇨 624 193 9 days ago 489th Kacarott 🇦🇺 623 100 3 Sep 2024 490th SirBogman 🇺🇸 622 59 23 Jul 2025 491st snoozingnewt 🇺🇸 622 93 31 Mar 2025 492nd Shanethegamer 🇺🇸 620 68 1 Sep 2024 492nd emgordon154 620 68 1 Sep 2024 492nd rvs314 620 68 24 Sep 2024 495th KrausRaus 🇺🇸 620 114 1 Sep 2024 496th emgordon154 619 41 30 Jul 2025 497th MeWhenI 🇻🇦 619 86 9 hours ago 498th DialFrost 🇸🇬 619 111 22 Nov 2024 499th lifthrasiir 🇰🇷 618 227 11 Dec 2024 500th madex 🇩🇪 617 101 1 Sep 2024 500th RedzGoose 🇦🇺 617 101 15 Oct 2024 500th Flekay 🇩🇪 617 101 10 Jul 2025 503rd KatieLG 🇬🇧 612 69 1 Sep 2024 504th sciencejiho 611 102 13 Sep 2024 504th FortuiteMan 🇫🇷 611 102 25 Sep 2024 506th Natanaelel 🇸🇪 611 112 15 May 2025 507th aliakseikalosha 611 144 5 Sep 2024 508th Shanethegamer 🇺🇸 610 102 25 Oct 2024 508th dokutan 610 102 26 Oct 2024 510th BambooleanLogic 🇸🇪 609 116 19 Nov 2024 510th acollett89 609 116 4 Aug 2025 512th msbranicky 606 86 16 Sep 2024 513th julian-hoelz 605 103 16 Sep 2024 513th StefanHabel 🇨🇦 605 103 22 Mar 2025 515th dokutan 601 76 3 Sep 2024 516th Shanethegamer 🇺🇸 600 134 1 Sep 2024 517th ComputerKWasTaken 🇺🇸 599 104 2 Sep 2024 517th elgan65536 599 104 23 Sep 2024 519th emgordon154 599 138 1 Jan 2025 520th dokutan 599 147 3 Nov 2024 521st inventshah 597 150 1 Sep 2024 522nd Shanethegamer 🇺🇸 595 177 4 Sep 2024 523rd mousetail 🇳🇱 594 105 3 Sep 2024 524th BREMAUCY 🇫🇷 594 316 7 Aug 2025 525th KatieLG 🇬🇧 593 77 1 Sep 2024 Prev 451–525 of 651 Next