Experienced chess coach. Among my students there are with rating raise 150 in a year. My chess site is www.chessbasic.com. As well, you can find Openings book here http://www.qualitychess.co.uk/products/1/283/the_nimzo-indian_defence_by_michael_roiz/ Another Queen's Indian book is published
https://www.qualitychess.co.uk/products/1/325/the_queens_indian_defence_by_michael_roiz/
An author of dozens theoretical databases on Modern Chess and Chessable author
People who always flag rook vs rook are permanently blocked.
