The Minesweeper hole will go live in approximately 4 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 224th GrayJoKing 🇦🇺 924 70 3ms 13 Jul 2024 224th FlyingPenguin223 924 70 4ms 4 Oct 2024 224th jipsong 🇩🇪 924 70 6ms 5 Apr 2025 229th roavin 924 84 338ms 23 Jun 2022 229th tkr-sh 🇫🇷 924 84 330ms 20 Aug 2022 229th Nickmiste 924 84 360ms 9 Nov 2022 229th postie77 924 84 358ms 19 May 2023 229th ertz1ertz 924 84 364ms 13 Sep 2024 229th Grabnukebomb 924 84 374ms 13 Sep 2024 229th Shanethegamer 🇺🇸 924 84 342ms 9 Apr 2025 229th HumanoidCPU 924 84 370ms 10 Apr 2025 229th annaproxy 924 84 340ms 11 Apr 2025 229th Re-Adventures 🇮🇳 924 84 335ms 15 Apr 2025 229th janbehrens 🇩🇪 924 84 352ms 17 Apr 2025 240th sean-niemann 🇺🇸 923 54 132ms 6 Aug 2024 240th Steffan153 🇫🇮 923 54 135ms 6 Aug 2024 240th lukegustafson 🇺🇸 923 54 126ms 7 Aug 2024 240th pardouin 🇫🇷 923 54 155ms 8 Aug 2024 240th Lydxn 🇨🇦 923 54 137ms 9 Aug 2024 240th JayXon 🇺🇸 923 54 160ms 9 Aug 2024 246th ovs-code 🇩🇪 922 60 7ms 9 Oct 2023 246th GrayJoKing 🇦🇺 922 60 5ms 11 Oct 2023 246th Lydxn 🇨🇦 922 60 7ms 11 Oct 2023 246th GolfingSuccess 🇬🇷 922 60 5ms 16 Nov 2023 246th Steffan153 🇫🇮 922 60 5ms 28 Jan 2024 246th JayXon 🇺🇸 922 60 5ms 29 Jan 2024 246th rucin93 🇵🇱 922 60 5ms 10 Jul 2024 246th sean-niemann 🇺🇸 922 60 5ms 10 Jul 2024 254th Steffan153 🇫🇮 922 67 37ms 19 Aug 2024 254th JayXon 🇺🇸 922 67 53ms 19 Aug 2024 256th JayXon 🇺🇸 922 105 296ms 23 days ago 256th KasperKivimaeki 🇫🇮 922 105 283ms 23 days ago 258th Lydxn 🇨🇦 920 90 135ms 6 May 2022 259th sisyphus-ppcg 🇦🇺 919 50 2,856ms 31 Jan 2023 259th saito-ta 🇯🇵 919 50 890ms 12 Dec 2024 261st uiamn 919 58 11ms 6 Sep 2022 261st 5quiwyrm 919 58 12ms 29 Sep 2022 261st alasdair-greenland 919 58 10ms 13 Jan 2023 261st kirjavascript 919 58 11ms 4 Aug 2025 261st Posandu 919 58 11ms 26 Aug 2025 261st mrxz 🇳🇱 919 58 11ms 3 Sep 2025 267th sean-niemann 🇺🇸 919 66 110ms 29 May 2025 268th Herbert00709 🇵🇱 919 92 70ms 17 Nov 2023 268th 4QT0R 919 92 67ms 23 Nov 2023 268th ovs-code 🇩🇪 919 92 64ms 3 Jun 2024 271st primo-ppcg 🇹🇭 917 24 158ms 10 Dec 2022 272nd nwellnhof 🇩🇪 916 51 50ms 4 May 2022 272nd primo-ppcg 🇹🇭 916 51 43ms 6 May 2022 272nd janlelis 916 51 39ms 10 May 2022 272nd Natanaelel 🇸🇪 916 51 39ms 2 Jun 2022 276th Irratix 🇳🇱 916 61 49ms 7 May 2022 276th TFeld00 🇩🇰 916 61 31ms 17 May 2022 276th hallvabo 🇳🇴 916 61 20ms 4 Sep 2022 276th DialFrost 🇸🇬 916 61 26ms 19 Dec 2022 276th anter69 🇭🇺 916 61 21ms 19 Dec 2022 276th Alex-x90 🇺🇸 916 61 22ms 27 Dec 2022 276th commandblockguy 🇺🇸 916 61 19ms 22 Aug 2023 276th fgrosshans 🇫🇷 916 61 20ms 22 Jul 2024 276th duckyluuk 🇳🇱 916 61 24ms 15 Aug 2024 276th rucin93 🇵🇱 916 61 19ms 31 May 2025 276th katss2 916 61 31ms 17 Aug 2025 287th btnlq 915 59 8ms 6 Nov 2022 288th JayXon 🇺🇸 915 69 868ms 5 Apr 2023 288th Lydxn 🇨🇦 915 69 863ms 9 Apr 2023 290th xnor-gate 914 63 194ms 20 Jan 2025 291st MichalMarsalek 🇨🇿 914 71 153ms 5 May 2022 291st Lydxn 🇨🇦 914 71 142ms 7 May 2022 291st GrayJoKing 🇦🇺 914 71 153ms 8 May 2022 291st JayXon 🇺🇸 914 71 133ms 8 May 2022 291st Steffan153 🇫🇮 914 71 145ms 9 Mar 2023 291st Shanethegamer 🇺🇸 914 71 128ms 15 May 2023 291st MeWhenI 🇻🇦 914 71 153ms 8 Aug 2023 291st sean-niemann 🇺🇸 914 71 151ms 9 Jan 2025 299th Steffan153 🇫🇮 914 76 12ms 15 May 2023 299th primo-ppcg 🇹🇭 914 76 23ms 15 May 2023 First Prev 226–300 of 3,390 Next Last