The Minesweeper hole will go live in approximately 3 days. Why not try and solve it ahead of time?
Collatz 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 299th Lydxn 🇨🇦 914 76 10ms 22 May 2023 299th GrayJoKing 🇦🇺 914 76 12ms 24 Aug 2023 303rd arctouch-cristiannevianna 913 85 366ms 3 Apr 2023 303rd Widgitty 913 85 356ms 1 Sep 2023 303rd tomtheisen 🇺🇸 913 85 340ms 10 Apr 2025 306th edsrzf 🇳🇿 912 54 1,619ms 13 Sep 2025 306th CaedenHarper 🇨🇦 912 54 1,490ms 27 Sep 2025 306th sean-niemann 🇺🇸 912 54 1,551ms 27 Sep 2025 309th primo-ppcg 🇹🇭 911 61 6ms 6 May 2022 309th sisyphus-ppcg 🇦🇺 911 61 10ms 14 Jul 2022 311th Lydxn 🇨🇦 911 70 96ms 7 May 2022 311th JayXon 🇺🇸 911 70 96ms 7 May 2022 313th Steffan153 🇫🇮 911 71 117ms 14 Oct 2022 313th Shanethegamer 🇺🇸 911 71 107ms 15 Oct 2022 313th stefangimmillaro 911 71 111ms 16 Oct 2022 313th MeWhenI 🇻🇦 911 71 115ms 16 Oct 2022 313th Steffan153 🇫🇮 911 71 6ms 10 Dec 2022 313th synt7x 🇺🇸 911 71 4ms 7 Jul 2025 319th pardouin 🇫🇷 911 72 2,547ms 21 May 2025 320th annaproxy 911 78 128ms 13 Jan 2023 320th IanUtley 911 78 119ms 12 Nov 2023 320th GrayJoKing 🇦🇺 911 78 84ms 28 Nov 2023 320th edsrzf 🇳🇿 911 78 21ms 16 Aug 2025 324th Bubbler-4 910 33 2,717ms 6 May 2022 324th rak1507 🇬🇧 910 33 119ms 8 May 2022 324th ngn 🇧🇬 910 33 26ms 11 May 2022 324th zacjl 910 33 36ms 3 Jun 2025 324th GrayJoKing 🇦🇺 910 33 15ms 4 Jun 2025 329th Shanethegamer 🇺🇸 910 86 390ms 15 May 2023 329th JayXon 🇺🇸 910 86 508ms 15 May 2023 329th Steffan153 🇫🇮 910 86 389ms 16 May 2023 329th Lydxn 🇨🇦 910 86 465ms 16 May 2023 329th GrayJoKing 🇦🇺 910 86 400ms 11 Aug 2023 329th sean-niemann 🇺🇸 910 86 458ms 11 Jul 2024 335th andersk 🇺🇸 910 91 137ms 25 Oct 2022 335th Super-Pizza 🇨🇦 910 91 126ms 4 Dec 2022 335th klixel 🇨🇦 910 91 119ms 20 May 2023 335th lynn 910 91 141ms 6 Jul 2024 335th edsrzf 🇳🇿 910 91 120ms 29 Nov 2024 335th DialFrost 🇸🇬 910 91 129ms 7 Apr 2025 341st Lydxn 🇨🇦 909 47 285ms 5 May 2022 342nd JayXon 🇺🇸 909 53 443ms 17 Aug 2024 343rd tailorspy 909 93 71ms 27 May 2024 343rd sean-niemann 🇺🇸 909 93 65ms 9 Jun 2025 343rd KasperKivimaeki 🇫🇮 909 93 58ms 46 hours ago 346th Lydxn 🇨🇦 908 81 45ms 1 Apr 2023 347th Shanethegamer 🇺🇸 907 61 5ms 9 Oct 2023 347th edsrzf 🇳🇿 907 61 4ms 4 Jul 2025 349th nai62 907 68 8ms 27 Aug 2022 350th ovs-code 🇩🇪 907 75 74ms 12 Sep 2024 350th Kacarott 🇦🇺 907 75 78ms 13 Sep 2024 352nd GrayJoKing 🇦🇺 906 74 81ms 1 Nov 2023 353rd ovs-code 🇩🇪 905 67 103ms 13 Dec 2022 353rd Steffan153 🇫🇮 905 67 118ms 18 Dec 2022 353rd Lydxn 🇨🇦 905 67 115ms 4 Feb 2023 353rd DialFrost 🇸🇬 905 67 123ms 17 Mar 2025 357th lynn 905 78 1,390ms 5 May 2022 358th Lydxn 🇨🇦 905 107 290ms 6 May 2022 358th CaedenHarper 🇨🇦 905 107 281ms 22 days ago 360th KrausRaus 🇺🇸 903 59 11ms 4 May 2022 360th voytxt 🇨🇿 903 59 15ms 4 May 2022 360th KingSkyrock 🇺🇸 903 59 11ms 18 May 2022 360th ZakkkkAttackkkk 🇵🇭 903 59 10ms 14 Jul 2022 360th aksyristos 903 59 10ms 28 Oct 2022 360th nstearns96 🇬🇧 903 59 11ms 28 Nov 2022 360th janbehrens 🇩🇪 903 59 13ms 17 May 2023 360th Shanethegamer 🇺🇸 903 59 11ms 25 May 2023 360th Maznek 903 59 10ms 26 Jun 2023 360th SpiritAxolotl 🇺🇸 903 59 14ms 20 Mar 2024 360th Andrey-Plotnikov 903 59 10ms 19 May 2024 360th emgordon154 903 59 11ms 5 Aug 2024 360th duckyluuk 🇳🇱 903 59 9ms 3 Oct 2024 360th lifthrasiir 🇰🇷 903 59 11ms 23 Nov 2024 360th fuzzylojik-golf 🇺🇸 903 59 13ms 1 Jun 2025 360th acollett89 903 59 11ms 17 Jun 2025 First Prev 301–375 of 3,391 Next Last