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 517th 123mjb 887 63 23ms 2 Jun 2025 517th luuumine 🇫🇷 887 63 24ms 17 days ago 517th DrakeSeteraO 887 63 56ms 3 days ago 529th lynn 886 65 316ms 5 May 2022 529th GrayJoKing 🇦🇺 886 65 327ms 5 May 2022 529th Sakisan 🇧🇪 886 65 214ms 6 May 2022 529th JayXon 🇺🇸 886 65 366ms 17 Oct 2022 529th Steffan153 🇫🇮 886 65 172ms 12 Nov 2022 529th tobeannouncd 886 65 331ms 25 Apr 2025 529th sean-niemann 🇺🇸 886 65 174ms 9 Jun 2025 536th stefangimmillaro 886 71 98ms 2 Oct 2022 536th Steffan153 🇫🇮 886 71 103ms 23 Feb 2023 536th Shanethegamer 🇺🇸 886 71 98ms 16 May 2023 536th sean-niemann 🇺🇸 886 71 99ms 12 Jul 2024 540th Shanethegamer 🇺🇸 886 72 90ms 8 May 2025 540th edsrzf 🇳🇿 886 72 103ms 4 Jul 2025 542nd RockOfStone 886 73 5ms 7 days ago 543rd JayXon 🇺🇸 886 74 2,684ms 14 Nov 2024 544th canissimia 🇦🇶 886 110 3,068ms 20 Feb 2023 545th canissimia 🇦🇶 886 204 16ms 25 Nov 2023 546th Shanethegamer 🇺🇸 885 61 6ms 31 Oct 2022 546th MeWhenI 🇻🇦 885 61 5ms 4 Nov 2022 548th Steffan153 🇫🇮 884 52 7ms 31 Dec 2022 549th DialFrost 🇸🇬 884 95 32ms 10 Dec 2024 550th GrayJoKing 🇦🇺 883 77 76ms 13 Sep 2024 551st albanian-laundromat 883 94 384ms 24 Sep 2025 551st kmathis22 883 94 381ms 13 days ago 551st jkelly467 883 94 445ms 4 days ago 554th jared-hughes 883 130 23ms 15 Dec 2024 555th DialFrost 🇸🇬 882 76 91ms 17 Mar 2025 556th primo-ppcg 🇹🇭 882 85 43ms 14 Jan 2025 556th MeWhenI 🇻🇦 882 85 44ms 21 Apr 2025 558th SiestaGuru 882 88 325ms 9 Jan 2023 558th rifatx 882 88 312ms 5 Jul 2024 558th kmathis22 882 88 349ms 25 Sep 2025 561st stefangimmillaro 881 53 38ms 2 Oct 2022 561st Haksell 🇦🇶 881 53 40ms 22 Feb 2023 563rd GrayJoKing 🇦🇺 881 70 2ms 6 May 2022 563rd ovs-code 🇩🇪 881 70 2ms 8 Oct 2023 563rd 09cf 881 70 13ms 8 Oct 2023 563rd saito-ta 🇯🇵 881 70 3ms 21 Dec 2023 563rd sean-niemann 🇺🇸 881 70 3ms 10 Jul 2024 563rd KasperKivimaeki 🇫🇮 881 70 6ms 8 Aug 2025 569th nipzu 881 94 145ms 17 May 2022 569th Natanaelel 🇸🇪 881 94 130ms 17 Jun 2022 569th nkoppel 881 94 133ms 19 Oct 2022 569th ovs-code 🇩🇪 881 94 145ms 21 Jun 2023 569th mousetail 🇳🇱 881 94 151ms 12 Jan 2024 574th m-tkach 🇺🇦 881 112 82ms 22 Jun 2025 575th sisyphus-ppcg 🇦🇺 880 40 362ms 31 Jan 2023 575th sean-niemann 🇺🇸 880 40 339ms 8 Mar 2025 577th primo-ppcg 🇹🇭 880 52 213ms 5 May 2022 577th dvargas46 🇺🇸 880 52 83ms 22 Dec 2022 579th DialFrost 🇸🇬 880 56 1,186ms 1 Sep 2025 580th ovs-code 🇩🇪 880 89 457ms 24 Jul 2024 580th jipsong 🇩🇪 880 89 467ms 7 Apr 2025 582nd Irratix 🇳🇱 880 96 63ms 4 May 2022 582nd MeWhenI 🇻🇦 880 96 61ms 1 Jun 2022 582nd janbehrens 🇩🇪 880 96 65ms 21 Apr 2023 582nd Shanethegamer 🇺🇸 880 96 66ms 15 May 2023 582nd Yewzir 🇧🇪 880 96 72ms 11 Nov 2023 582nd MateuszPietrzak 🇵🇱 880 96 63ms 18 Nov 2023 582nd kkoenig 880 96 63ms 21 Dec 2023 582nd BlankSpruce 880 96 63ms 20 Aug 2024 582nd fuzzylojik-golf 🇺🇸 880 96 70ms 14 Jun 2025 591st emplv 🇱🇻 880 110 263ms 5 May 2022 591st Shanethegamer 🇺🇸 880 110 253ms 21 Nov 2023 591st edsrzf 🇳🇿 880 110 301ms 28 Nov 2024 591st targrik 880 110 279ms 30 Jun 2025 595th ovs-code 🇩🇪 878 73 300ms 22 Jul 2023 596th Shanethegamer 🇺🇸 878 81 19ms 19 Dec 2023 596th emgordon154 878 81 26ms 29 Jul 2025 598th GrayJoKing 🇦🇺 877 72 850ms 31 May 2022 598th Shanethegamer 🇺🇸 877 72 702ms 1 Jun 2022 598th Steffan153 🇫🇮 877 72 803ms 10 Dec 2022 First Prev 526–600 of 3,390 Next Last