Beginner Problems: Capture

The following are three problems to test your understanding of capturing stones. The number of stars next to the problem number shows the difficulty level of the problem on a scale from 1-5 (1 is easy, 5 is difficult).

♕ Please comment the answer of the coordinate if you think you know where to play! ♕

☆ ☆ ☆ Problem 1: White to play. 

Where should white play to efficiently capture the black stone at E3? 

☆ Problem 2: Black to play. 

Where should black play to capture the white stone at C2? 

☆ ☆ ☆ ☆ Problem 3: Black to play.

Where should black play to capture the white stone at C2? 

Good luck! If you have any questions, don't hesitate to ask in the comments!