Forsyth–Edwards Notation 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 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 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 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 Topological Sort Transpose Sentence Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 525th knutae 🇳🇴 572 143 10ms 13 Nov 2023 525th davecame 572 143 17ms 30 Nov 2023 525th keelimeguy 🇺🇸 572 143 40ms 7 May 2025 525th stefangimmillaro 572 143 12ms 23 May 2025 530th kkoenig 572 275 282ms 13 Sep 2024 531st MeWhenI 🇻🇦 570 173 114ms 1 May 2023 531st snoozingnewt 🇺🇸 570 173 92ms 5 days ago 533rd Shanethegamer 🇺🇸 569 147 16ms 17 May 2023 534th Aurel300 🇨🇭 569 266 224ms 21 Jul 2024 535th cros107 🇦🇺 568 144 10ms 26 Oct 2023 536th dokutan 568 205 2ms 22 Apr 2024 537th msbranicky 567 267 206ms 1 Oct 2023 538th MeWhenI 🇻🇦 566 98 8ms 1 May 2023 539th mathisfun271 564 145 11ms 18 Feb 2024 539th neihousaigaai 564 145 11ms 10 Apr 2025 541st Mabeloid 🇳🇴 563 137 766ms 4 May 2025 542nd OllieBoyne 🇬🇧 560 146 11ms 1 May 2023 542nd Chimplement 560 146 10ms 13 Dec 2023 544th KatieLG 🇬🇧 560 287 3ms 1 May 2023 545th commandblockguy 🇺🇸 559 138 687ms 1 Sep 2025 546th MeWhenI 🇻🇦 559 229 44ms 26 Aug 2023 547th commandblockguy 🇺🇸 556 147 17ms 1 May 2023 547th SniperSmiley 🇺🇸 556 147 10ms 15 Aug 2023 547th fourth-bit 556 147 18ms 2 Jul 2024 547th logvp 556 147 10ms 7 Oct 2024 547th blaztoma 🇱🇹 556 147 10ms 25 days ago 552nd MeWhenI 🇻🇦 556 296 31ms 6 Jun 2023 553rd ovs-code 🇩🇪 554 165 6ms 27 Sep 2024 554th KasperKivimaeki 🇫🇮 553 148 11ms 5 Jul 2025 555th weliveinhell 🇭🇹 553 174 10ms 25 Sep 2023 556th Shanethegamer 🇺🇸 553 274 206ms 17 May 2023 557th edsrzf 🇳🇿 551 156 338ms 3 Jul 2025 558th DialFrost 🇸🇬 550 151 178ms 28 Oct 2024 559th scpchicken 🇵🇼 549 149 10ms 1 May 2023 559th Vaekor 549 149 15ms 9 Jul 2023 561st acollett89 547 176 11ms 8 Aug 2025 562nd dokutan 546 246 58ms 26 Aug 2024 563rd jerrandolph 546 288 276ms 2 Nov 2023 564th vhoulbreque 🇫🇷 542 151 10ms 2 Apr 2024 564th FranklinJiaChen 542 151 12ms 3 Aug 2024 564th Anonymousellama21 542 151 10ms 9 Aug 2024 567th madex 🇩🇪 542 185 2ms 23 Jul 2025 568th dokutan 542 230 2ms 5 Feb 2025 569th MeWhenI 🇻🇦 541 287 50ms 3 Jul 2023 570th AlephSquirrel 540 143 632ms 21 Jan 2024 571st Maximizer02 540 185 9ms 10 Jan 2025 572nd AbhilashaTandon 538 152 10ms 21 Sep 2023 573rd AlephSquirrel 535 153 11ms 1 May 2023 573rd MaxElf999 535 153 10ms 2 May 2023 573rd eiburns 535 153 13ms 5 May 2023 576th Mabeloid 🇳🇴 534 188 2ms 2 Oct 2024 577th Yewzir 🇧🇪 531 189 2ms 9 Feb 2024 578th ravnskjaer 🇩🇰 531 252 409ms 11 Sep 2024 579th Natanaelel 🇸🇪 528 245 135ms 5 May 2023 580th adoxography 526 183 10ms 22 May 2023 581st hellwue 524 156 11ms 3 May 2023 581st hiichbindermax 524 156 11ms 4 May 2023 583rd dokutan 522 119 39ms 21 Apr 2025 584th MeWhenI 🇻🇦 522 160 18ms 21 May 2023 585th Yewzir 🇧🇪 521 221 2,497ms 9 Feb 2024 586th alemelis 518 158 10ms 5 Oct 2024 586th Andrey135296 518 158 10ms 24 Nov 2024 588th dokutan 516 220 170ms 29 Jun 2024 589th IISResetMe 515 144 234ms 24 Feb 2024 590th andrewjc2000 514 159 10ms 30 Apr 2025 591st snoozingnewt 🇺🇸 511 279 120ms 15 days ago 592nd mrmena 🇦🇺 509 189 13ms 29 Mar 2024 593rd Yewzir 🇧🇪 509 245 2ms 18 Jan 2024 594th chartung17 508 161 10ms 1 Jan 2024 595th Yewzir 🇧🇪 507 197 19ms 4 Apr 2024 596th tobyLovick 505 162 14ms 29 Nov 2023 596th YAJUE114514 505 162 10ms 28 Jul 2025 598th msbranicky 504 231 2ms 28 Sep 2023 599th KatieLG 🇬🇧 502 163 963ms 1 May 2023 600th emgordon154 501 124 34ms 26 Jul 2024 First Prev 526–600 of 791 Next Last