Scholar's mate
The sample show the attacked space and the next move is checkmate for black.
"In chess, Scholar's Mate is the checkmate achieved by the following moves, or similar:
1. e4 e5
2. Qh5 Nc6
3. Bc4 Nf6??
4. Qxf7#
The moves might be played in a different order or in slight variation, but the basic idea is the same: the queen and bishop combine in a simple mating attack on f7 (or f2 if Black is performing the mate).
Scholar's Mate is sometimes referred to as the "Four-Move Checkmate", although there are other ways to checkmate in four moves." [Scholar's mate. Wikipedia].