|Puzzle 1: White to move|
Puzzle 1: White is two rooks up, but Black threatens to give perpetual check or checkmate on e2/g2. How can White stop it?
|Puzzle 2: Black to move and win|
|Puzzle 3: White to move and mate in 3|
Finally, here is a slightly more challenging one:
|Puzzle 4: White to move and win|