Lumesweep

A free, tactile browser minesweeper with guaranteed no-guess boards — never lose to a 50/50.

Learn Lumesweep, a free browser minesweeper-style logic puzzle with guaranteed no-guess boards. How to reveal, flag and chord, what the numbers mean, and what 3BV measures.

Lumesweep is a free, no-account logic puzzle you play in your browser. It plays like classic minesweeper — clear every safe square without detonating a mine — but every board is verified solvable by pure logic first, so you never lose to an unavoidable 50/50 guess.

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