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 641st RedzGoose 🇦🇺 557 145 101ms 9 Sep 2024 642nd msbranicky 548 135 3ms 1 Sep 2024 643rd HumanoidCPU 547 110 158ms 22 Nov 2025 644th Yewzir 🇧🇪 543 115 11ms 1 Dec 2025 645th Shanethegamer 🇺🇸 541 107 83ms 1 Sep 2024 646th DialFrost 🇸🇬 539 76 1,023ms 1 Aug 2025 647th LeoCh01 539 116 11ms 1 Sep 2024 648th KatieLG 🇬🇧 539 128 2ms 2 Oct 2025 649th dokutan 539 155 242ms 1 Sep 2024 650th Shanethegamer 🇺🇸 538 91 22ms 1 Sep 2024 651st snoozingnewt 🇨🇦 536 79 37ms 12 Oct 2025 652nd Shanethegamer 🇺🇸 536 206 32ms 4 Sep 2024 653rd Mabeloid 🇳🇴 534 109 490ms 17 Sep 2024 654th albanian-laundromat 533 352 11ms 18 Sep 2025 655th trijin 532 118 4ms 5 Oct 2024 656th Shanethegamer 🇺🇸 532 183 492ms 24 Sep 2025 657th emgordon154 529 133 14ms 16 Dec 2024 658th Zhenyu-Bo 525 119 9ms 1 Aug 2025 658th tomh1012 525 119 11ms 2 Mar 2026 660th tomh1012 525 169 405ms 17 Sep 2025 661st ravnskjaer 🇩🇰 523 186 478ms 15 Dec 2025 662nd lhulinsky 521 120 10ms 23 Oct 2024 662nd arjunarya1 521 120 10ms 11 Sep 2025 664th CaedenHarper 🇨🇦 518 188 493ms 3 Oct 2025 665th error256 515 134 2ms 24 Sep 2024 666th kevinnaviapaiva 512 122 10ms 16 Feb 2025 667th eddvrs 508 123 11ms 29 Sep 2024 668th dokutan 507 174 10ms 28 Feb 2026 669th Yewzir 🇧🇪 506 115 372ms 1 Dec 2025 670th yokasuretsu 504 124 10ms 10 Jul 2025 670th hamilton-bonds 504 124 10ms 24 Jul 2025 672nd dbut2 🇦🇺 504 261 275ms 3 Sep 2024 673rd LukeBridges 🇬🇧 499 142 10ms 3 Sep 2024 674th MeWhenI 🇻🇦 498 86 1,062ms 15 Sep 2025 675th snoozingnewt 🇨🇦 497 160 110ms 1 Sep 2024 676th MeWhenI 🇻🇦 497 181 2ms 13 Jun 2025 677th nhausspiegel 496 126 10ms 13 Sep 2024 678th mateusz-sterczewski 492 86 36ms 15 Jan 2026 679th matsagad 492 127 10ms 16 Jan 2025 680th madex 🇩🇪 491 183 2ms 2 Sep 2024 681st codewrite 🇬🇧 490 181 455ms 30 Dec 2025 682nd vang1ong7ang 490 246 189ms 5 hours ago 683rd xyangst 488 128 9ms 12 Oct 2024 683rd 123mjb 488 128 9ms 19 Nov 2025 685th AstroOrbis 485 145 7ms 25 Feb 2026 686th snoozingnewt 🇨🇦 483 120 121ms 14 Oct 2025 687th alphafalfa 480 105 4ms 1 Nov 2024 688th rucin93 🇵🇱 480 251 243ms 5 Sep 2024 689th snoozingnewt 🇨🇦 479 185 407ms 4 Oct 2025 690th snoozingnewt 🇨🇦 476 189 2ms 9 Oct 2025 691st junkondo-jp 475 149 9ms 15 Dec 2024 692nd KatieLG 🇬🇧 475 292 8ms 1 Sep 2024 693rd rboath 470 159 97ms 18 Dec 2024 694th DialFrost 🇸🇬 470 207 566ms 24 Sep 2025 695th R4z0rX 466 152 9ms 1 Sep 2024 696th iczelia 🇩🇪 463 194 2ms 11 Oct 2025 697th Stockoh 🇫🇷 456 137 11ms 17 Oct 2024 698th two-bad 🇬🇧 454 156 11ms 4 Oct 2024 699th brimstonetrader 453 138 10ms 17 Oct 2024 700th JOrE20 453 268 28ms 11 Feb 2026 701st Shanethegamer 🇺🇸 451 141 110ms 4 Dec 2025 702nd snoozingnewt 🇨🇦 449 186 8ms 1 Sep 2024 703rd msbranicky 448 269 242ms 1 Sep 2024 704th IISResetMe 439 106 503ms 3 Jan 2026 705th Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 706th Yax42 🇫🇷 435 224 471ms 5 Oct 2025 707th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 708th aksyristos 419 101 37ms 17 Nov 2024 709th jusaka 413 292 188ms 3 hours ago 710th amazingalek 🇳🇴 411 216 450ms 26 Jan 2026 711th MeWhenI 🇻🇦 411 260 81ms 13 Jun 2025 712th Jacob385 406 240 393ms 4 Sep 2024 713th HunterC14 403 155 10ms 21 Oct 2024 714th bac0id 402 266 3,003ms 10 Jan 2025 715th zakariamouhid 398 178 11ms 14 Sep 2024 716th galloj 🇨🇿 396 101 10ms 4 Sep 2024 717th Naitzirch 🇳🇱 395 158 10ms 3 Jul 2025 718th Apzyte-Gamer 379 165 10ms 28 Oct 2024 719th varhammer 379 235 8ms 20 Oct 2025 720th CyberTapir 370 169 10ms 1 Sep 2024 First Prev 641–720 of 772 Next Last