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PalindromemordnilaP in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 101st GrayJoKing 🇦🇺 894 47 7ms 25 Nov 2025 102nd nwellnhof 🇩🇪 894 52 218ms 1 Sep 2024 103rd firegene 🇮🇪 893 70 11ms 3 Sep 2024 103rd snoozingnewt 🇨🇦 893 70 11ms 22 Nov 2025 105th pardouin 🇫🇷 893 99 118ms 1 Sep 2024 105th Natanaelel 🇸🇪 893 99 116ms 1 Sep 2024 105th ovs-code 🇩🇪 893 99 120ms 1 Sep 2024 105th sean-niemann 🇺🇸 893 99 119ms 4 Sep 2024 105th JayXon 🇺🇸 893 99 117ms 6 Sep 2024 105th lynn 893 99 119ms 8 Jan 2025 105th xnor-gate 893 99 119ms 4 Mar 2025 105th Sakisan 🇧🇪 893 99 115ms 22 Apr 2025 105th tobeannouncd 893 99 127ms 25 Apr 2025 105th HPWiz 🇳🇿 893 99 117ms 27 Sep 2025 105th edsrzf 🇳🇿 893 99 128ms 20 Dec 2025 105th Steffan153 🇫🇮 893 99 120ms 17 Feb 2026 117th emgordon154 891 70 2,664ms 8 Nov 2024 118th HPWiz 🇳🇿 890 46 30ms 26 Dec 2025 119th btnlq 890 55 6ms 1 Sep 2024 119th ovs-code 🇩🇪 890 55 12ms 20 Oct 2024 119th sean-niemann 🇺🇸 890 55 6ms 29 Dec 2024 119th Steffan153 🇫🇮 890 55 6ms 11 Feb 2026 123rd JayXon 🇺🇸 890 101 2ms 18 Sep 2024 124th nwellnhof 🇩🇪 887 100 478ms 22 Jul 2025 125th Natanaelel 🇸🇪 886 80 10ms 1 Sep 2024 125th MeWhenI 🇻🇦 886 80 11ms 1 Sep 2024 125th helbling 🇨🇭 886 80 10ms 11 Jul 2025 128th lifthrasiir 🇰🇷 881 66 405ms 2 Dec 2024 128th snoozingnewt 🇨🇦 881 66 446ms 22 Nov 2025 130th ovs-code 🇩🇪 880 25 41ms 1 Sep 2024 131st radarek 🇵🇱 880 52 1,720ms 10 Sep 2024 131st edsrzf 🇳🇿 880 52 1,364ms 31 Jan 2026 133rd starfihs 880 71 162ms 5 Sep 2024 133rd dokutan 880 71 13ms 13 Sep 2024 133rd KatieLG 🇬🇧 880 71 10ms 14 Sep 2024 133rd lifthrasiir 🇰🇷 880 71 11ms 20 Nov 2024 133rd plcc0 880 71 10ms 6 Mar 2025 133rd keelimeguy 🇺🇸 880 71 10ms 17 May 2025 133rd albanian-laundromat 🇺🇸 880 71 10ms 5 Jun 2025 133rd JOrE20 880 71 14ms 11 Feb 2026 133rd Flekay 🇩🇪 880 71 11ms 15 Feb 2026 142nd GrayJoKing 🇦🇺 879 60 12ms 3 Sep 2024 142nd error256 879 60 12ms 3 Sep 2024 142nd edsrzf 🇳🇿 879 60 12ms 1 Dec 2025 145th JayXon 🇺🇸 879 71 2,659ms 8 Nov 2024 145th pardouin 🇫🇷 879 71 2,462ms 17 Nov 2024 147th sean-niemann 🇺🇸 879 80 6ms 16 Aug 2025 148th error256 878 66 76ms 6 Sep 2024 149th JayXon 🇺🇸 878 137 224ms 10 Jul 2025 149th acotis 878 137 233ms 24 Sep 2025 151st IanUtley 877 78 15ms 1 Sep 2024 151st kops-cg 877 78 15ms 6 Mar 2025 153rd JayXon 🇺🇸 876 122 439ms 18 Sep 2024 154th ashtraypettingzoo 🇺🇸 875 29 2ms 1 Sep 2024 154th GolfingSuccess 🇬🇷 875 29 3ms 25 Mar 2025 156th GolfingSuccess 🇬🇷 875 48 6ms 13 Dec 2024 156th MeWhenI 🇻🇦 875 48 6ms 31 Dec 2024 158th emplv 🇱🇻 875 81 11ms 16 Sep 2024 158th vlpx 🇫🇮 875 81 10ms 23 Sep 2024 158th lukegustafson 🇺🇸 875 81 10ms 26 May 2025 161st JayXon 🇺🇸 874 91 108ms 10 Sep 2024 162nd error256 873 58 256ms 3 Sep 2024 162nd JayXon 🇺🇸 873 58 239ms 10 Sep 2024 162nd HPWiz 🇳🇿 873 58 223ms 7 Dec 2025 165th sean-niemann 🇺🇸 872 69 133ms 10 May 2025 166th error256 872 73 129ms 28 Feb 2026 167th edsrzf 🇳🇿 871 72 5ms 31 Jan 2026 168th error256 871 112 483ms 24 Sep 2025 168th sean-niemann 🇺🇸 871 112 514ms 24 Sep 2025 168th MeWhenI 🇻🇦 871 112 482ms 7 Nov 2025 168th Steffan153 🇫🇮 871 112 471ms 11 Feb 2026 172nd JayXon 🇺🇸 871 151 335ms 10 Sep 2024 172nd nwellnhof 🇩🇪 871 151 330ms 10 Sep 2024 172nd 0xjac 🇨🇭 871 151 332ms 25 Nov 2025 175th xsot 🇸🇬 869 58 8ms 19 Dec 2025 176th error256 869 93 556ms 24 Jul 2025 177th ovs-code 🇩🇪 868 67 474ms 15 Jul 2025 177th albanian-laundromat 🇺🇸 868 67 477ms 4 Aug 2025 179th qpwoeirut 868 72 12ms 1 Oct 2025 180th error256 867 72 2,422ms 24 Oct 2024 181st Frowny 865 35 33ms 1 Sep 2024 181st Natanaelel 🇸🇪 865 35 32ms 1 Sep 2024 181st 4hg 🇺🇸 865 35 33ms 5 Sep 2024 184th kumavale 865 139 233ms 28 Oct 2025 185th voytxt 🇨🇿 864 82 10ms 1 Sep 2024 185th dmrichwa 🇺🇸 864 82 10ms 2 Sep 2024 185th Lv0Sys 🇵🇱 864 82 10ms 22 Feb 2026 188th JayXon 🇺🇸 863 53 1,663ms 2 Sep 2024 188th pardouin 🇫🇷 863 53 1,774ms 4 Sep 2025 190th GrayJoKing 🇦🇺 861 57 6ms 20 Mar 2025 191st JayXon 🇺🇸 860 94 564ms 23 Jul 2025 192nd JayXon 🇺🇸 859 94 110ms 10 Sep 2024 193rd MeWhenI 🇻🇦 858 57 6ms 1 Sep 2024 194th alemelis 858 59 229ms 1 Sep 2024 194th pardouin 🇫🇷 858 59 317ms 2 Sep 2024 196th DialFrost 🇸🇬 858 103 122ms 21 Nov 2024 197th duckyluuk 🇳🇱 857 49 5ms 26 Nov 2025 198th JayXon 🇺🇸 857 87 2ms 20 Sep 2024 199th KasperKivimaeki 🇫🇮 856 105 2ms 17 Aug 2025 200th edsrzf 🇳🇿 855 104 10ms 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