Let’s say my opponent plays this very boring chess opening line in the Queen’s Indian Defense, so it’ll take a bit more time. First, I’ll study the lines carefully. I’ll be looking for one of these phrases: ‘This line offers good practical chances for Black’, ‘This line increases Black’s chances to play for a win’ or ‘This move is an ambitious response to White’s usual setup’, but most likely, ‘Not the best line for Black, though it probably offers him ample practical chances’. I can even check <click> recommendations for advanced players in the Summary: <click> 19. b3 <click> Qa5.
This is an interesting line for me, because White has a bigger possibility to make an error with <click> 20. Na4 <multiple clicks follow> dxc4 21. Rxd7 Rxd7 22. Bxb7 cxb3 23. axb3 Rxb7 24. Nd3 Ne4 25. Bh2 Rd7 26. Qc4 Qb4. Black is slightly better here: White cannot take because of his vulnerable first rank. So, the rest is quite simple – with your shield, or on it!