PalindromemordnilaP in all languages in bytes. 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 Bytes Time Submitted 721st Shanethegamer 🇺🇸 438 115 2ms 1 Sep 2024 722nd Yax42 🇫🇷 436 224 471ms 5 Oct 2025 723rd rollershutter 435 176 11ms 18 Nov 2024 724th ehulinsky 🇺🇸 432 122 3ms 3 Apr 2025 725th Yewzir 🇧🇪 428 179 12ms 1 Dec 2025 726th aksyristos 420 101 37ms 17 Nov 2024 727th MeWhenI 🇻🇦 413 260 77ms 13 Jun 2025 728th amazingalek 🇳🇴 412 216 494ms 26 Jan 2026 729th Jacob385 407 240 393ms 4 Sep 2024 730th bac0id 404 266 2,913ms 10 Jan 2025 731st jusaka 403 222 10ms 12 hours ago 732nd zakariamouhid 398 178 13ms 14 Sep 2024 733rd galloj 🇨🇿 396 101 10ms 4 Sep 2024 734th varhammer 381 235 9ms 20 Oct 2025 735th flekAI 378 114 799ms 3 days ago 736th Yewzir 🇧🇪 372 171 642ms 1 Dec 2025 737th nemoyatpeace 368 208 10ms 16 Jan 2026 738th Giantnoodlemonster 367 246 2ms 27 Sep 2024 739th jusaka 364 233 9ms 12 hours ago 740th MeWhenI 🇻🇦 363 135 7ms 26 Sep 2024 741st Mikey-Beep 🇬🇧 354 193 15ms 13 Aug 2025 742nd flekAI 354 374 292ms 3 days ago 743rd flekAI 353 149 203ms 3 days ago 744th AidanWalter 347 221 11ms 3 Jan 2025 745th flekAI 342 184 5ms 3 days ago 746th jusaka 338 227 8ms 15 hours ago 747th flekAI 336 243 198ms 3 days ago 748th flekAI 330 289 245ms 3 days ago 749th flekAI 329 233 8ms 3 days ago 750th flekAI 328 249 108ms 3 days ago 751st Imsmelkov 328 298 448ms 22 Jan 2026 752nd jusaka 324 193 2,290ms 16 hours ago 753rd timhaj 🇸🇮 320 239 11ms 19 Sep 2024 754th jusaka 318 238 61ms 57 mins ago 755th dokutan 313 261 128ms 27 Feb 2026 756th flekAI 312 147 1,244ms 3 days ago 756th jusaka 312 147 1,390ms 15 hours ago 758th snoozingnewt 🇨🇦 311 209 116ms 1 Sep 2024 759th flekAI 308 317 363ms 3 days ago 760th flekAI 308 349 74ms 3 days ago 761st jusaka 307 290 461ms 15 hours ago 762nd dokutan 298 396 1,493ms 27 Feb 2026 763rd flekAI 297 125 114ms 3 days ago 764th flekAI 291 280 94ms 3 days ago 765th flekAI 290 307 492ms 3 days ago 766th jusaka 287 183 229ms 15 hours ago 767th jusaka 286 316 2ms 16 hours ago 768th nephila-nacrea 🇬🇧 284 132 4ms 4 Sep 2024 769th jusaka 280 291 89ms 15 hours ago 770th flekAI 280 463 44ms 3 days ago 771st jusaka 277 280 4ms 12 hours ago 772nd jusaka 275 481 349ms 16 hours ago 773rd flekAI 271 295 733ms 3 days ago 774th flekAI 271 301 393ms 3 days ago 775th flekAI 270 456 30ms 3 days ago 776th flekAI 266 141 3ms 3 days ago 777th bidger 265 369 410ms 20 Sep 2024 778th flekAI 263 343 3ms 3 days ago 779th KatieLG 🇬🇧 262 460 207ms 15 Sep 2024 780th jusaka 260 250 99ms 15 hours ago 781st jusaka 259 243 5ms 15 hours ago 782nd jusaka 258 190 11ms 11 hours ago 783rd dokutan 257 380 381ms 27 Feb 2026 784th KatieLG 🇬🇧 257 459 1,404ms 15 Sep 2024 785th jusaka 254 375 194ms 14 hours ago 786th flekAI 249 311 4ms 3 days ago 787th jusaka 249 683 1,466ms 14 hours ago 788th jusaka 246 500 30ms 13 hours ago 789th snoozingnewt 🇨🇦 242 444 1,494ms 6 Oct 2025 790th jusaka 237 179 37ms 17 hours ago 791st flekAI 236 294 2ms 3 days ago 792nd jusaka 231 354 208ms 14 hours ago 793rd jusaka 229 356 373ms 15 hours ago 794th dokutan 228 579 320ms 27 Feb 2026 795th flekAI 226 288 119ms 3 days ago 796th dokutan 223 283 5ms 27 Feb 2026 797th flekAI 223 381 10ms 3 days ago 798th jusaka 221 281 156ms 90 mins ago 799th jusaka 219 366 100ms 15 hours ago 800th jusaka 216 547 1,311ms 15 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