Tactics by opening: free puzzles books

Hi everyone,

I’ve been putting together chess puzzle books (by opening + Elo band) for players who like studying offline.

Last week I released a French Defense collection, and over a thousand players downloaded it!

This week I’ve added new volumes covering:

📚 Free on Kindle for the next 3 days:

Caro-Kann Defense Tactics (600–1200 | 1200–1800 | 1800–2400)
Four Knights Game Tactics (600–1200 | 1200–1800 | 1800–2400)
Dutch Defense Tactics (600–1200 | 1200–1800 | 1800–2400)
Jobava London Tactics (600–1200 | 1200–1800 | 1800–2400)
Modern Defense Tactics (600–1200 | 1200–1800 | 1800–2400)
Nimzo-Indian Defense Tactics (600–1200 | 1200–1800 | 1800–2400)

Sample puzzle below — would love feedback on the format!

For the book : https://www.amazon.com/dp/B0FRYMRQCC