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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 160th vlpx 🇫🇮 874 81 11ms 23 Sep 2024 160th lukegustafson 🇺🇸 874 81 11ms 26 May 2025 163rd JayXon 🇺🇸 874 91 103ms 10 Sep 2024 164th sean-niemann 🇺🇸 872 69 131ms 10 May 2025 165th xsot 🇸🇬 869 58 16ms 19 Dec 2025 166th edsrzf 🇳🇿 869 72 4ms 20 days ago 167th error256 869 93 532ms 24 Jul 2025 168th error256 868 112 467ms 24 Sep 2025 168th sean-niemann 🇺🇸 868 112 480ms 24 Sep 2025 168th MeWhenI 🇻🇦 868 112 441ms 7 Nov 2025 168th Steffan153 🇫🇮 868 112 383ms 10 days ago 172nd JayXon 🇺🇸 868 151 285ms 10 Sep 2024 172nd nwellnhof 🇩🇪 868 151 298ms 10 Sep 2024 172nd 0xjac 🇨🇭 868 151 304ms 25 Nov 2025 175th ovs-code 🇩🇪 867 67 452ms 15 Jul 2025 175th albanian-laundromat 867 67 405ms 4 Aug 2025 177th qpwoeirut 867 72 11ms 1 Oct 2025 178th Frowny 865 35 33ms 1 Sep 2024 178th Natanaelel 🇸🇪 865 35 32ms 1 Sep 2024 178th 4hg 🇺🇸 865 35 33ms 5 Sep 2024 181st error256 864 72 2,232ms 24 Oct 2024 182nd voytxt 🇨🇿 864 82 10ms 1 Sep 2024 182nd dmrichwa 🇺🇸 864 82 9ms 2 Sep 2024 184th JayXon 🇺🇸 863 53 1,366ms 2 Sep 2024 184th pardouin 🇫🇷 863 53 1,384ms 4 Sep 2025 186th kumavale 863 139 223ms 28 Oct 2025 187th GrayJoKing 🇦🇺 861 57 6ms 20 Mar 2025 188th JayXon 🇺🇸 860 94 530ms 23 Jul 2025 189th edsrzf 🇳🇿 859 84 108ms 1 Dec 2025 190th MeWhenI 🇻🇦 858 57 6ms 1 Sep 2024 191st DialFrost 🇸🇬 858 103 135ms 21 Nov 2024 192nd duckyluuk 🇳🇱 857 49 6ms 26 Nov 2025 193rd ovs-code 🇩🇪 857 61 252ms 1 Sep 2024 194th KasperKivimaeki 🇫🇮 856 105 2ms 17 Aug 2025 195th edsrzf 🇳🇿 855 104 10ms 21 days ago 196th JayXon 🇺🇸 854 94 119ms 10 Sep 2024 197th tayloia 🇬🇧 853 83 10ms 1 Sep 2024 197th Lv0Sys 🇵🇱 853 83 9ms 10 Dec 2025 199th JayXon 🇺🇸 852 68 89ms 18 Jun 2025 200th JayXon 🇺🇸 851 87 2ms 20 Sep 2024 201st snoozingnewt 🇨🇦 850 88 84ms 22 Nov 2025 202nd JayXon 🇺🇸 849 105 3ms 17 Nov 2025 203rd pardouin 🇫🇷 848 71 123ms 2 Sep 2024 204th edsrzf 🇳🇿 848 91 4ms 19 Dec 2025 205th rhdqor213 848 106 2ms 7 Jan 2026 206th xsot 🇸🇬 846 50 33ms 20 Dec 2025 207th sean-niemann 🇺🇸 846 74 5ms 19 Dec 2024 207th Steffan153 🇫🇮 846 74 4ms 10 days ago 209th error256 846 94 108ms 1 Sep 2024 210th JayXon 🇺🇸 846 95 119ms 24 May 2025 211th HumanoidCPU 844 74 11ms 2 Sep 2024 211th luuumine 🇫🇷 844 74 10ms 15 Oct 2025 213th retrohun 844 99 392ms 9 Dec 2025 214th GrayJoKing 🇦🇺 843 84 10ms 2 Sep 2024 214th uttumuttu 🇫🇮 843 84 9ms 30 Sep 2024 214th didion0 🇺🇸 843 84 10ms 30 May 2025 217th edsrzf 🇳🇿 843 125 41ms 31 Dec 2024 217th kg583 🇺🇸 843 125 41ms 25 Mar 2025 219th bizy-coder 842 69 399ms 3 Sep 2024 219th Steffan153 🇫🇮 842 69 387ms 4 days ago 221st edsrzf 🇳🇿 842 96 481ms 21 days ago 222nd SirBogman 🇺🇸 841 36 33ms 11 Sep 2024 223rd Kacarott 🇦🇺 841 89 62ms 1 Sep 2024 223rd error256 841 89 62ms 11 Dec 2025 225th Shanethegamer 🇺🇸 838 96 121ms 24 May 2025 226th m-tkach 🇺🇦 838 145 70ms 27 Sep 2024 227th Shanethegamer 🇺🇸 836 202 1,589ms 1 Mar 2025 228th MeWhenI 🇻🇦 834 75 5ms 3 Sep 2024 228th xsot 🇸🇬 834 75 5ms 18 Dec 2025 230th xnor-gate 834 82 15ms 5 Mar 2025 231st nwellnhof 🇩🇪 833 48 4ms 1 Sep 2024 232nd Artemis21 🇬🇧 833 75 10ms 10 Jan 2025 233rd MeWhenI 🇻🇦 832 55 1,400ms 1 Sep 2024 233rd Natanaelel 🇸🇪 832 55 1,329ms 1 Sep 2024 235th nwellnhof 🇩🇪 832 108 2ms 10 Sep 2024 236th JayXon 🇺🇸 831 111 481ms 20 Sep 2024 237th MeWhenI 🇻🇦 830 45 3ms 1 Sep 2024 238th HumanoidCPU 830 70 385ms 2 Sep 2024 238th dokutan 830 70 393ms 7 days ago 240th Shanethegamer 🇺🇸 830 145 1,471ms 4 Sep 2024 First Prev 161–240 of 745 Next Last