This is a card-elimination puzzle game themed around bridge structural force distribution. Featuring a deep steel-blue and amber-gold palette inspired by engineering materials, the interface evokes the aesthetic of cable-stayed bridges and reinforced concrete pylons. Players must identify and tap matching triplets of number and letter cards from a shuffled grid, clearing them before the seven-slot selection bar fills up. With three difficulty tiers offering progressively larger card sets, a comprehensive achievement badge system tracking milestones from first wins to advanced mastery, and detailed session history with filtering and statistics, every round delivers a satisfying blend of strategic observation and quick decision-making wrapped in an immersive structural engineering theme.