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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator 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 481st MeWhenI 🇻🇦 684 88 150ms 1 Sep 2024 481st error256 684 88 154ms 10 Sep 2024 483rd DialFrost 🇸🇬 683 62 36ms 30 Jan 2025 483rd KatieLG 🇬🇧 683 62 38ms 2 Oct 2025 485th olleicua 🇺🇸 681 104 10ms 11 Sep 2024 486th madex 🇩🇪 681 177 230ms 17 Sep 2024 487th error256 680 63 1,078ms 20 Dec 2025 488th fourth-bit 679 92 9ms 4 Sep 2024 488th bnic24 679 92 11ms 5 Sep 2024 490th MeWhenI 🇻🇦 679 117 119ms 2 Sep 2024 490th stefangimmillaro 679 117 102ms 2 Sep 2024 492nd BlankSpruce 676 158 66ms 1 Sep 2024 493rd dokutan 675 156 42ms 1 Sep 2024 494th dcgjb 674 69 365ms 11 Sep 2024 495th stefangimmillaro 672 63 35ms 2 Sep 2024 495th SirBogman 🇺🇸 672 63 36ms 5 Sep 2024 497th adamnielson42 🇺🇸 672 93 10ms 7 Oct 2024 497th smiksky 🇺🇸 672 93 11ms 16 Oct 2024 497th guilhem-roy 🇫🇷 672 93 10ms 31 May 2025 500th alicethecatwhisperermeow 672 132 421ms 14 Sep 2024 501st madeforlosers 668 106 10ms 23 Oct 2024 502nd chunes3 🇺🇸 668 112 64ms 1 Sep 2024 503rd DialFrost 🇸🇬 666 181 212ms 12 Apr 2025 504th mousetail 🇳🇱 665 94 12ms 1 Sep 2024 504th ljweel 665 94 10ms 12 Sep 2024 506th DialFrost 🇸🇬 663 96 105ms 28 Nov 2025 507th dokutan 661 64 39ms 23 Feb 2025 508th Shanethegamer 🇺🇸 661 91 162ms 5 Sep 2024 509th GolfingSuccess 🇬🇷 660 162 441ms 1 Sep 2024 509th ovs-code 🇩🇪 660 162 2,915ms 1 Sep 2024 511th msbranicky 658 95 10ms 1 Sep 2024 511th Bulmenisaurus 658 95 12ms 4 Sep 2024 511th btjones0 658 95 10ms 13 Sep 2024 511th jfallon1997 658 95 9ms 26 Sep 2024 511th jacekwladzinski 658 95 9ms 7 Oct 2025 511th aalec 658 95 9ms 8 Nov 2025 517th msbranicky 657 95 2,416ms 8 Jan 2025 518th NickTheEASDude 🇺🇸 657 105 2ms 7 Oct 2025 519th Shanethegamer 🇺🇸 657 135 407ms 1 Sep 2024 520th lukechampine 657 200 274ms 7 Jun 2025 520th jerrandolph 657 200 296ms 21 Sep 2025 522nd msbranicky 656 136 3ms 1 Sep 2024 523rd albanian-laundromat 655 189 44ms 14 Sep 2025 524th m-tkach 🇺🇦 653 169 29ms 9 Feb 2026 525th TFeld00 🇩🇰 651 65 34ms 3 Sep 2024 526th fgrosshans 🇫🇷 651 96 9ms 1 Sep 2024 526th mm1013g 651 96 11ms 2 Sep 2024 526th Mikey-Beep 🇬🇧 651 96 12ms 2 Sep 2024 526th JudeTyrrell 651 96 10ms 22 Sep 2024 530th ShiraJoseph 🇺🇸 650 109 9ms 22 Sep 2024 531st dokutan 649 78 179ms 3 Sep 2024 532nd msbranicky 648 203 285ms 1 Sep 2024 533rd voytxt 🇨🇿 647 93 161ms 17 Apr 2025 534th AlephSquirrel 647 248 3ms 29 Sep 2024 535th stefangimmillaro 645 71 1,320ms 3 Sep 2024 536th Waffle3z 645 107 2ms 2 Oct 2024 537th stefangimmillaro 645 151 494ms 6 Oct 2025 538th scpchicken 🇵🇼 644 97 244ms 8 Sep 2024 538th Carlettos1 644 97 12ms 14 Sep 2024 540th mrxz 🇳🇱 644 110 10ms 22 Sep 2024 540th weliveinhell 🇭🇹 644 110 9ms 28 Sep 2024 542nd Chinay-Domitrix 🇺🇸 643 97 2,560ms 22 days ago 543rd BlankSpruce 642 140 2ms 1 Sep 2024 544th stefangimmillaro 641 188 219ms 4 Jun 2025 545th aDwarfNamedUrist 640 138 119ms 4 Sep 2024 546th SirBogman 🇺🇸 637 73 435ms 23 Jul 2025 547th pickerj 637 98 11ms 13 Sep 2024 547th dtbao20 🇻🇳 637 98 17ms 30 Sep 2024 547th YAJUE114514 637 98 10ms 30 Jul 2025 547th netfri25 🇮🇱 637 98 10ms 22 Feb 2026 547th rotemkm 637 98 10ms 22 Feb 2026 552nd Shanethegamer 🇺🇸 636 72 1,301ms 1 Sep 2024 552nd anter69 🇭🇺 636 72 1,291ms 25 Oct 2024 554th weeble 636 77 8ms 21 Dec 2025 555th Ripick 636 127 387ms 6 Sep 2024 556th jusaka 633 92 460ms 3 days ago 557th CaedenHarper 🇨🇦 633 112 10ms 22 Aug 2025 558th olleicua 🇺🇸 632 67 40ms 6 Sep 2024 558th madex 🇩🇪 632 67 35ms 20 days ago 560th alexeldridge 631 99 11ms 14 Sep 2024 First Prev 481–560 of 772 Next Last