The Minesweeper hole will go live in approximately 4 days. Why not try and solve it ahead of time?
Roman to Arabic 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 825th CaedenHarper 🇨🇦 521 112 329ms 22 Aug 2025 827th zbreit 🇺🇸 521 138 32ms 6 Aug 2020 827th rschwa6308 🇺🇸 521 138 25ms 6 Aug 2020 827th StardustGogeta 521 138 28ms 6 Aug 2020 827th mcjo163 521 138 34ms 2 Sep 2020 831st Stockoh 🇫🇷 517 139 41ms 27 Feb 2024 831st zhaohm14 517 139 21ms 10 Jun 2025 833rd goodingc 516 219 210ms 3 Oct 2021 834th CaedenHarper 🇨🇦 514 97 148ms 18 Aug 2025 835th didion0 🇺🇸 514 147 16ms 23 Feb 2021 835th null-tangent 514 147 17ms 11 Sep 2022 837th bwenstar 513 140 22ms 21 Feb 2024 838th jalone87 512 191 106ms 6 Feb 2020 839th jerrandolph 512 242 273ms 8 Nov 2023 840th tatzyr 🇯🇵 511 94 166ms 28 Dec 2024 841st rifatx 510 141 26ms 16 Mar 2023 841st quimey 510 141 22ms 20 Jul 2023 843rd vgamula 🇺🇦 510 247 41ms 27 Jul 2023 844th ian-h-chamberlain 🇺🇸 508 149 11ms 19 Dec 2019 844th shreyasminocha 508 149 13ms 2 Aug 2020 844th xnacly 🇩🇪 508 149 16ms 27 Jun 2023 847th Haksell 🇦🇶 506 142 21ms 13 Jun 2020 847th Fishron 506 142 28ms 19 Sep 2022 847th jatloe 506 142 20ms 6 Sep 2024 850th HumanoidCPU 506 245 301ms 26 Aug 2024 851st NewDefectus 🇮🇱 505 87 21ms 16 Oct 2021 851st Natanaelel 🇸🇪 505 87 11ms 16 Nov 2021 851st scpchicken 🇵🇼 505 87 20ms 24 Nov 2022 854th neihousaigaai 504 200 711ms 18 May 2021 855th Brianzhengca 503 143 24ms 5 Feb 2021 855th TobyBoyne 🇬🇧 503 143 21ms 14 Apr 2022 857th orthoplex 🇨🇽 502 68 48ms 9 Oct 2020 858th JGDoerrer 502 200 420ms 5 Jan 2022 859th celiendonze 🇨🇭 499 144 28ms 14 Apr 2023 859th Bulmenisaurus 499 144 25ms 1 Jul 2024 861st somebody1234 497 152 14ms 24 Mar 2018 861st tekaireb 497 152 15ms 24 Jul 2021 863rd lmolteno 496 145 32ms 3 Mar 2021 863rd guilhem-roy 🇫🇷 496 145 26ms 7 Mar 2022 863rd frankgraziano 496 145 21ms 24 Apr 2025 863rd TheZwierzLF 🇵🇱 496 145 21ms 21 May 2025 867th nyoshe 496 163 4ms 25 Jan 2025 868th JDiLenarda 🇫🇷 496 193 1,311ms 30 Oct 2020 869th StarmaQ 495 181 13ms 7 Feb 2021 870th jessegyger 494 153 13ms 7 Nov 2022 871st Stockoh 🇫🇷 493 131 645ms 24 Jun 2024 872nd masinag 🇮🇹 493 164 4ms 25 Nov 2024 873rd InigoK 🇺🇸 492 146 33ms 26 Aug 2025 874th knightry 492 205 563ms 8 Feb 2021 875th clementblaudeau 489 147 26ms 7 Jun 2021 875th StefanHabel 🇨🇦 489 147 18ms 31 Dec 2022 875th yuchuehw 489 147 26ms 3 Jan 2024 875th Lv0Sys 🇵🇱 489 147 260ms 26 May 2025 879th brimstonetrader 487 228 375ms 27 Mar 2024 880th yokasuretsu 486 148 37ms 21 Apr 2018 880th AgathokakologicalBit 486 148 28ms 3 Aug 2019 880th TaserTheFox 🇺🇸 486 148 18ms 8 May 2023 880th adamnielson42 🇺🇸 486 148 19ms 8 Aug 2023 880th jtaxen 486 148 19ms 28 Apr 2024 880th o0BlackDragon0o 486 148 24ms 8 Sep 2024 880th Bombalech 486 148 25ms 8 Sep 2024 887th b10011 🇫🇮 482 149 42ms 12 Jun 2023 888th postie77 482 162 440ms 16 Mar 2023 889th Natanaelel 🇸🇪 481 71 53ms 16 Nov 2021 889th 4hg 🇺🇸 481 71 46ms 19 Jun 2024 891st bac0id 480 209 449ms 11 Jan 2025 892nd alphafalfa 479 131 122ms 1 Aug 2025 893rd sambirnbaum1 479 150 18ms 6 Sep 2019 893rd MaxElf999 479 150 37ms 20 Oct 2022 893rd nstearns96 🇬🇧 479 150 28ms 8 Dec 2022 893rd Florian-Mt 479 150 28ms 14 Nov 2023 897th pranaygp 479 158 12ms 13 May 2020 898th Jacob385 478 211 522ms 13 Nov 2024 899th ian-h-chamberlain 🇺🇸 476 151 21ms 17 Dec 2019 899th qwjhvbxi 476 151 21ms 7 Feb 2024 First Prev 826–900 of 1,374 Next Last