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 Minesweeper 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 Binary Lambda Calculus Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 Minesweeper 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 Binary Lambda Calculus Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 150th nwellnhof 🇩🇪 868 151 257ms 10 Sep 2024 152nd MeWhenI 🇻🇦 867 59 24ms 13 Jun 2025 153rd qpwoeirut 866 72 12ms 1 Oct 2025 154th ovs-code 🇩🇪 865 67 547ms 15 Jul 2025 154th albanian-laundromat 865 67 403ms 4 Aug 2025 156th error256 865 93 467ms 24 Jul 2025 157th SirBogman 🇺🇸 864 36 35ms 11 Sep 2024 158th error256 864 72 2,081ms 24 Oct 2024 159th voytxt 🇨🇿 863 82 10ms 1 Sep 2024 159th dmrichwa 🇺🇸 863 82 9ms 2 Sep 2024 161st JayXon 🇺🇸 862 53 1,008ms 2 Sep 2024 161st pardouin 🇫🇷 862 53 1,086ms 4 Sep 2025 163rd GrayJoKing 🇦🇺 861 57 7ms 20 Mar 2025 164th error256 860 112 336ms 24 Sep 2025 164th sean-niemann 🇺🇸 860 112 344ms 24 Sep 2025 164th MeWhenI 🇻🇦 860 112 337ms 14 days ago 167th kumavale 860 139 236ms 25 days ago 168th sean-niemann 🇺🇸 859 62 650ms 22 Sep 2025 169th xsot 🇸🇬 859 66 15ms 10 Jul 2025 170th JayXon 🇺🇸 856 94 479ms 23 Jul 2025 171st ovs-code 🇩🇪 855 61 237ms 1 Sep 2024 172nd MeWhenI 🇻🇦 854 57 7ms 1 Sep 2024 173rd JayXon 🇺🇸 854 94 105ms 10 Sep 2024 174th DialFrost 🇸🇬 854 103 180ms 21 Nov 2024 175th KasperKivimaeki 🇫🇮 854 105 2ms 17 Aug 2025 176th edsrzf 🇳🇿 854 107 7ms 19 Oct 2025 177th tayloia 🇬🇧 852 83 10ms 1 Sep 2024 178th JayXon 🇺🇸 851 87 2ms 20 Sep 2024 179th snoozingnewt 🇺🇸 850 88 80ms 26 mins ago 180th JayXon 🇺🇸 849 105 3ms 4 days ago 181st pardouin 🇫🇷 848 71 128ms 2 Sep 2024 182nd JayXon 🇺🇸 847 68 79ms 18 Jun 2025 183rd error256 846 94 105ms 1 Sep 2024 184th JayXon 🇺🇸 846 95 122ms 24 May 2025 185th CLOStrophobic 🇮🇹 846 108 7ms 19 Feb 2025 186th edsrzf 🇳🇿 844 99 4ms 9 Jan 2025 187th HumanoidCPU 843 74 10ms 2 Sep 2024 187th sean-niemann 🇺🇸 843 74 6ms 19 Dec 2024 187th luuumine 🇫🇷 843 74 10ms 15 Oct 2025 190th edsrzf 🇳🇿 843 125 38ms 31 Dec 2024 190th kg583 🇺🇸 843 125 42ms 25 Mar 2025 192nd GrayJoKing 🇦🇺 842 84 9ms 2 Sep 2024 192nd uttumuttu 🇫🇮 842 84 9ms 30 Sep 2024 192nd didion0 🇺🇸 842 84 9ms 30 May 2025 195th Kacarott 🇦🇺 841 89 70ms 1 Sep 2024 196th bizy-coder 840 69 541ms 3 Sep 2024 197th 0xjac 🇨🇭 840 156 248ms 4 days ago 198th AlephSquirrel 839 109 8ms 18 Feb 2025 199th Shanethegamer 🇺🇸 838 96 126ms 24 May 2025 200th Shanethegamer 🇺🇸 836 202 1,485ms 1 Mar 2025 201st xnor-gate 834 82 19ms 5 Mar 2025 202nd nwellnhof 🇩🇪 833 48 4ms 1 Sep 2024 203rd MeWhenI 🇻🇦 832 75 4ms 3 Sep 2024 203rd Artemis21 🇬🇧 832 75 10ms 10 Jan 2025 205th nwellnhof 🇩🇪 831 108 2ms 10 Sep 2024 206th JayXon 🇺🇸 831 111 413ms 20 Sep 2024 207th MeWhenI 🇻🇦 830 45 4ms 1 Sep 2024 208th MeWhenI 🇻🇦 830 55 1,041ms 1 Sep 2024 208th Natanaelel 🇸🇪 830 55 991ms 1 Sep 2024 210th Shanethegamer 🇺🇸 830 145 1,326ms 4 Sep 2024 210th m-tkach 🇺🇦 830 145 67ms 27 Sep 2024 212th MeWhenI 🇻🇦 829 75 2,130ms 24 Oct 2024 212th duckyluuk 🇳🇱 829 75 2,159ms 25 Oct 2024 214th HumanoidCPU 828 70 604ms 2 Sep 2024 215th emgordon154 825 59 11ms 15 Nov 2024 216th error256 825 146 1,362ms 2 May 2025 217th emplv 🇱🇻 824 159 263ms 18 Sep 2024 218th duckyluuk 🇳🇱 823 86 8ms 1 Sep 2024 219th sean-niemann 🇺🇸 823 112 444ms 4 Sep 2024 220th xsot 🇸🇬 821 76 4ms 3 Sep 2024 220th o0BlackDragon0o 821 76 12ms 8 Sep 2024 220th Bombalech 821 76 12ms 8 Sep 2024 220th JunkIce 821 76 10ms 24 Nov 2024 224th MeWhenI 🇻🇦 821 98 332ms 2 Sep 2024 225th rak1507 🇬🇧 819 31 2ms 11 Sep 2024 First Prev 151–225 of 691 Next Last