Problem 1
Black to play.
Interactive Puzzle
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
White to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
White to play.
Problem 2
Black to play.
Problem 1
White to play.
Problem 2
White to play.
Problem 1
White tto play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
White to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
White to play.
Problem 2
Black to play.
Problem 1
Black to play.
Problem 2
Black to play.
Problem 1
White to play.
Problem 2
Black to play.
Unfortunately the BGJ only give a part of the solution.
After the first two moves there is no continuation.
The solution you find here is what I think is correct.
Problem 1
White to play.
Problem 2
White to play.
Problem 1
Black to play.
Problem 2
Black to play.