Daily Chess Improvement: Basic Quickie Practical Chess Tactic! Chess tactic, Puzzle Solving Black to move. How should black proceed? Source: ChessToday.net
That queen is overburdened, preventing the backrank mate on e1 as well as the queen mate on b2.
1. .. Re1+ 2. Rxe1 Rxe1+ 3. Qxe1 Qxb2#