Last Monday’s problem reminds us that lazy analysis can cost points.
If White carelessly plays 1.b7 , Black draws with 1…c5 2. Kb5 Kb7 3. Kxc5 Kc7 4. Kd5 f4! and after 5. gxf4 Kd7 Black has the opposition and draws.
Instead, White wins with 1. Kb5! Kb7 2. bxc7 Kxc7 3. Kc5 Kd7 4. Kd5 Ke7 5. Ke5 f4 6. gxf4! and wins.
In this week’s position, White has to play and win. He has plenty of discovered checks but don’t be lazy. Work out which discovered check wins.