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 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 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 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 Hilbert Curve Mandelbrot 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 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 Hilbert Curve Mandelbrot 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 150th MeWhenI 🇻🇦 854 140 1 Sep 2024 150th sean-niemann 🇺🇸 854 140 19 Dec 2024 153rd acotis 854 143 22 May 2025 154th DialFrost 🇸🇬 852 103 21 Nov 2024 155th tayloia 🇬🇧 850 83 1 Sep 2024 156th CLOStrophobic 🇮🇹 848 108 19 Feb 2025 157th JayXon 🇺🇸 847 68 9 days ago 158th DialFrost 🇸🇬 847 94 17 Mar 2025 159th pardouin 🇫🇷 846 71 2 Sep 2024 160th JayXon 🇺🇸 846 95 24 May 2025 161st JayXon 🇺🇸 845 118 20 Sep 2024 161st sean-niemann 🇺🇸 845 118 16 Jan 2025 161st albanian-laundromat 845 118 2 days ago 164th sean-niemann 🇺🇸 843 74 19 Dec 2024 165th edsrzf 🇳🇿 843 125 31 Dec 2024 165th kg583 🇺🇸 843 125 25 Mar 2025 167th JayXon 🇺🇸 842 87 20 Sep 2024 168th HumanoidCPU 841 74 2 Sep 2024 169th Kacarott 🇦🇺 841 89 1 Sep 2024 170th GrayJoKing 🇦🇺 840 84 2 Sep 2024 170th uttumuttu 🇫🇮 840 84 30 Sep 2024 170th didion0 🇺🇸 840 84 27 days ago 173rd AlephSquirrel 840 109 18 Feb 2025 174th ovs-code 🇩🇪 838 95 1 Sep 2024 175th Shanethegamer 🇺🇸 838 96 24 May 2025 176th ovs-code 🇩🇪 837 69 1 Sep 2024 176th bizy-coder 837 69 3 Sep 2024 178th edsrzf 🇳🇿 836 99 9 Jan 2025 179th KasperKivimaeki 🇫🇮 834 107 20 Feb 2025 180th nwellnhof 🇩🇪 833 48 1 Sep 2024 181st error256 833 94 1 Sep 2024 182nd MeWhenI 🇻🇦 832 75 3 Sep 2024 183rd JayXon 🇺🇸 831 111 20 Sep 2024 184th MeWhenI 🇻🇦 830 45 1 Sep 2024 185th MeWhenI 🇻🇦 830 55 1 Sep 2024 185th Natanaelel 🇸🇪 830 55 1 Sep 2024 185th pardouin 🇫🇷 830 55 1 Sep 2024 188th xnor-gate 830 82 5 Mar 2025 189th Shanethegamer 🇺🇸 830 145 4 Sep 2024 190th Shanethegamer 🇺🇸 830 202 1 Mar 2025 191st MeWhenI 🇻🇦 829 75 24 Oct 2024 191st duckyluuk 🇳🇱 829 75 25 Oct 2024 191st Artemis21 🇬🇧 829 75 10 Jan 2025 194th MeWhenI 🇻🇦 829 98 2 Sep 2024 195th nwellnhof 🇩🇪 827 108 10 Sep 2024 196th emgordon154 825 59 15 Nov 2024 197th HumanoidCPU 825 70 2 Sep 2024 198th error256 825 146 2 May 2025 199th sean-niemann 🇺🇸 823 112 4 Sep 2024 200th xsot 🇸🇬 821 76 3 Sep 2024 201st sean-niemann 🇺🇸 821 92 19 Apr 2025 202nd m-tkach 🇺🇦 821 145 27 Sep 2024 203rd emplv 🇱🇻 821 159 18 Sep 2024 203rd 0xjac 🇨🇭 821 159 8 days ago 205th duckyluuk 🇳🇱 820 86 1 Sep 2024 206th Yax42 🇫🇷 820 100 23 Apr 2025 207th rak1507 🇬🇧 818 31 11 Sep 2024 208th o0BlackDragon0o 818 76 8 Sep 2024 208th Bombalech 818 76 8 Sep 2024 208th JunkIce 818 76 24 Nov 2024 208th snoozingnewt 🇺🇸 818 76 31 Mar 2025 212th kg583 🇺🇸 818 112 9 May 2025 213th duckyluuk 🇳🇱 817 52 13 Dec 2024 214th canissimia 🇦🇶 816 116 4 Sep 2024 215th m-tkach 🇺🇦 816 170 15 Jan 2025 216th dokutan 813 71 13 Sep 2024 216th KatieLG 🇬🇧 813 71 28 Oct 2024 218th ovs-code 🇩🇪 811 52 1 Sep 2024 219th error256 811 99 4 Sep 2024 220th error256 810 77 1 Sep 2024 221st GrayJoKing 🇦🇺 810 84 1 Sep 2024 221st annaproxy 810 84 22 Oct 2024 223rd JayXon 🇺🇸 809 231 25 Sep 2024 224th CornerMercury 🇬🇧 808 77 14 Feb 2025 225th sean-niemann 🇺🇸 806 151 16 Jan 2025 Prev 151–225 of 614 Next