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 76th JayXon 🇺🇸 896 67 133ms 31 Oct 2024 77th JayXon 🇺🇸 896 77 2ms 9 Jan 2025 77th GrayJoKing 🇦🇺 896 77 2ms 12 Jul 2025 79th JayXon 🇺🇸 893 99 383ms 11 Jul 2025 79th AdrienHache 🇫🇷 893 99 429ms 17 Sep 2025 79th Yax42 🇫🇷 893 99 378ms 17 days ago 82nd Babafaba 891 65 430ms 3 days ago 83rd firegene 🇮🇪 891 70 12ms 3 Sep 2024 83rd emplv 🇱🇻 891 70 5ms 17 Sep 2024 85th nwellnhof 🇩🇪 890 52 241ms 1 Sep 2024 86th 2bular 889 35 34ms 1 Sep 2024 86th Frowny 889 35 35ms 1 Sep 2024 86th Natanaelel 🇸🇪 889 35 38ms 1 Sep 2024 86th 4hg 🇺🇸 889 35 37ms 5 Sep 2024 90th emgordon154 889 70 2,795ms 8 Nov 2024 91st pardouin 🇫🇷 889 99 157ms 1 Sep 2024 91st Natanaelel 🇸🇪 889 99 155ms 1 Sep 2024 91st ovs-code 🇩🇪 889 99 148ms 1 Sep 2024 91st sean-niemann 🇺🇸 889 99 127ms 4 Sep 2024 91st JayXon 🇺🇸 889 99 141ms 6 Sep 2024 91st lynn 889 99 122ms 8 Jan 2025 91st xnor-gate 889 99 158ms 4 Mar 2025 91st Sakisan 🇧🇪 889 99 168ms 22 Apr 2025 91st tobeannouncd 889 99 166ms 25 Apr 2025 91st HPWiz 🇳🇿 889 99 141ms 27 Sep 2025 101st edsrzf 🇳🇿 888 60 885ms 2 Sep 2025 102nd JayXon 🇺🇸 888 101 2ms 18 Sep 2024 103rd GolfingSuccess 🇬🇷 886 48 6ms 13 Dec 2024 103rd MeWhenI 🇻🇦 886 48 6ms 31 Dec 2024 105th btnlq 885 55 9ms 1 Sep 2024 105th ovs-code 🇩🇪 885 55 12ms 20 Oct 2024 105th sean-niemann 🇺🇸 885 55 7ms 29 Dec 2024 108th alemelis 884 59 231ms 1 Sep 2024 108th pardouin 🇫🇷 884 59 323ms 2 Sep 2024 108th antimon2 🇯🇵 884 59 352ms 23 Oct 2024 111th Natanaelel 🇸🇪 884 80 9ms 1 Sep 2024 111th MeWhenI 🇻🇦 884 80 8ms 1 Sep 2024 111th helbling 🇨🇭 884 80 12ms 11 Jul 2025 114th nwellnhof 🇩🇪 884 100 420ms 22 Jul 2025 115th nwellnhof 🇩🇪 884 109 371ms 25 Sep 2025 115th JayXon 🇺🇸 884 109 510ms 25 Sep 2025 117th ovs-code 🇩🇪 880 25 43ms 1 Sep 2024 118th radarek 🇵🇱 878 52 1,128ms 10 Sep 2024 119th lifthrasiir 🇰🇷 878 66 392ms 2 Dec 2024 120th starfihs 878 71 183ms 5 Sep 2024 120th dokutan 878 71 14ms 13 Sep 2024 120th KatieLG 🇬🇧 878 71 11ms 14 Sep 2024 120th lifthrasiir 🇰🇷 878 71 11ms 20 Nov 2024 120th plcc0 878 71 13ms 6 Mar 2025 120th keelimeguy 🇺🇸 878 71 15ms 17 May 2025 120th albanian-laundromat 878 71 12ms 5 Jun 2025 127th JayXon 🇺🇸 878 122 410ms 18 Sep 2024 128th IanUtley 877 78 26ms 1 Sep 2024 128th kops-cg 877 78 25ms 6 Mar 2025 130th JayXon 🇺🇸 876 71 2,602ms 8 Nov 2024 130th pardouin 🇫🇷 876 71 2,727ms 17 Nov 2024 132nd sean-niemann 🇺🇸 876 80 7ms 16 Aug 2025 133rd ashtraypettingzoo 🇺🇸 875 29 7ms 1 Sep 2024 133rd GolfingSuccess 🇬🇷 875 29 3ms 25 Mar 2025 135th GrayJoKing 🇦🇺 873 60 14ms 3 Sep 2024 135th error256 873 60 10ms 3 Sep 2024 137th DialFrost 🇸🇬 873 61 859ms 31 Aug 2025 138th error256 873 66 333ms 6 Sep 2024 139th emplv 🇱🇻 873 81 9ms 16 Sep 2024 139th vlpx 🇫🇮 873 81 8ms 23 Sep 2024 139th lukegustafson 🇺🇸 873 81 10ms 26 May 2025 142nd sean-niemann 🇺🇸 870 69 137ms 10 May 2025 143rd JayXon 🇺🇸 870 91 127ms 10 Sep 2024 144th JayXon 🇺🇸 870 137 219ms 10 Jul 2025 144th acotis 870 137 262ms 24 Sep 2025 146th JayXon 🇺🇸 868 151 251ms 10 Sep 2024 146th nwellnhof 🇩🇪 868 151 267ms 10 Sep 2024 148th MeWhenI 🇻🇦 867 59 24ms 13 Jun 2025 149th qpwoeirut 866 72 13ms 24 days ago 150th ovs-code 🇩🇪 865 67 547ms 15 Jul 2025 First Prev 76–150 of 676 Next Last