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 Mandelbrot 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort 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 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 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 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 525th AstroOrbis 561 111 11 days ago 527th gigaprofisi 🇺🇸 560 126 14 days ago 528th ravnskjaer 🇩🇰 559 214 11 Sep 2024 529th MostParsingVex 558 160 30 Sep 2024 530th YAJUE114514 556 112 11 days ago 531st dokutan 555 132 1 Sep 2024 532nd RedzGoose 🇦🇺 553 145 9 Sep 2024 533rd msbranicky 543 135 1 Sep 2024 534th alphafalfa 540 105 1 Nov 2024 535th Shanethegamer 🇺🇸 538 107 1 Sep 2024 536th LeoCh01 537 116 1 Sep 2024 537th Shanethegamer 🇺🇸 535 91 1 Sep 2024 538th Mabeloid 🇳🇴 530 109 17 Sep 2024 539th trijin 529 118 5 Oct 2024 540th MostParsingVex 528 97 2 Oct 2024 541st Misaka18520 520 206 14 Sep 2024 542nd lhulinsky 519 120 23 Oct 2024 543rd error256 511 134 24 Sep 2024 544th kevinnaviapaiva 510 122 16 Feb 2025 545th DialFrost 🇸🇬 509 235 27 May 2025 546th eddvrs 506 123 29 Sep 2024 547th madex 🇩🇪 502 84 1 Sep 2024 548th yokasuretsu 502 124 41 hours ago 549th rboath 501 159 18 Dec 2024 550th dbut2 🇦🇺 500 261 3 Sep 2024 551st Jacob385 498 240 4 Sep 2024 552nd LukeBridges 🇬🇧 497 142 3 Sep 2024 553rd nhausspiegel 494 126 13 Sep 2024 554th Shanethegamer 🇺🇸 493 115 1 Sep 2024 555th MeWhenI 🇻🇦 493 181 13 Jun 2025 556th matsagad 490 127 16 Jan 2025 557th snoozingnewt 🇺🇸 490 160 1 Sep 2024 558th madex 🇩🇪 488 183 2 Sep 2024 559th xyangst 486 128 12 Oct 2024 560th janAkali 🇷🇺 475 171 17 May 2025 561st KatieLG 🇬🇧 475 292 1 Sep 2024 562nd junkondo-jp 474 149 15 Dec 2024 563rd rucin93 🇵🇱 473 251 5 Sep 2024 564th R4z0rX 464 152 1 Sep 2024 565th Stockoh 🇫🇷 454 137 17 Oct 2024 566th two-bad 🇬🇧 453 156 4 Oct 2024 567th brimstonetrader 451 138 17 Oct 2024 568th acollett89 447 158 11 days ago 569th snoozingnewt 🇺🇸 442 180 1 Sep 2024 570th msbranicky 442 269 1 Sep 2024 571st ehulinsky 🇺🇸 430 122 3 Apr 2025 572nd aksyristos 418 101 17 Nov 2024 573rd LostSyntax21 🇬🇧 418 149 2 Sep 2024 574th MeWhenI 🇻🇦 412 260 13 Jun 2025 575th bac0id 403 266 10 Jan 2025 576th HunterC14 402 155 21 Oct 2024 577th zakariamouhid 397 178 14 Sep 2024 578th galloj 🇨🇿 396 101 4 Sep 2024 579th dokutan 395 155 1 Sep 2024 580th Naitzirch 🇳🇱 394 158 8 days ago 581st snoozingnewt 🇺🇸 388 227 1 Sep 2024 582nd snoozingnewt 🇺🇸 384 110 1 Sep 2024 583rd Apzyte-Gamer 377 165 28 Oct 2024 584th CyberTapir 368 169 1 Sep 2024 585th IISResetMe 366 127 17 Nov 2024 586th MeWhenI 🇻🇦 363 135 26 Sep 2024 587th Giantnoodlemonster 363 246 27 Sep 2024 588th rollershutter 354 176 18 Nov 2024 589th snoozingnewt 🇺🇸 329 186 1 Sep 2024 590th bidger 324 369 20 Sep 2024 591st mathisfun271 319 195 3 Oct 2024 592nd nephila-nacrea 🇬🇧 283 132 4 Sep 2024 593rd AidanWalter 282 221 3 Jan 2025 594th snoozingnewt 🇺🇸 276 209 1 Sep 2024 595th KatieLG 🇬🇧 262 459 15 Sep 2024 596th timhaj 🇸🇮 260 239 19 Sep 2024 597th KatieLG 🇬🇧 258 460 15 Sep 2024 598th snoozingnewt 🇺🇸 239 448 1 Sep 2024 599th KatieLG 🇬🇧 200 401 15 Sep 2024 600th KatieLG 🇬🇧 190 398 15 Sep 2024 Prev 526–600 of 623 Next