Preparation day 1: Which openings will I play?

I played and taught many different openings in the last 30 years. My goal for today was to decide which openings will I play in the tourney.

I decided to use solid openings with both white and black and go for strategical positions where my experience my count a lot.

I will start with 1.d4 and play the system with a fianchetto bishop on g2. It gives safety to my king and I can go to the middle game or play long endgames with a small edge.

I selected a few games from my history about these systems. 

Catalan with white and white against the king's indian:

Russian defense with black against 1.e4

Slav defense with black against 1.d4

1...e5 against 1.c4:

After the opening decision I solved around 20 puzzles from a database where I have 1001 checkmate puzzles. I plan to solve all the puzzles before the tourney starts.

I share with you 3 puzzles to solve: