Solution
1… Nd3+, followed by Qxb2#
The point of 1… Nd3+ is to clear the diagonal for the g7-bishop to support Qxb2#
This example shows that the obstructing piece isn’t always an enemy piece, it could be your own piece too.
Exercise #162
The "7-Skills" Chess Training Model. Get your free copy here...
1… Nd3+, followed by Qxb2#
The point of 1… Nd3+ is to clear the diagonal for the g7-bishop to support Qxb2#
This example shows that the obstructing piece isn’t always an enemy piece, it could be your own piece too.