What checks can White give with his queen? Only Qg4. Having seen this, dig for some way to attack a loose Black piece at the same time. The cluster of pieces at c8, d7, and e7 looks promising, but as yet contains no suitable targets; so ask what the effects of an exchange would be. Look in particular for any trouble you can start that will leave a Black piece loose at the end of it. 1. RxR, QxR leaves the c8 rook unprotected, and thus makes it a good target that White can reach from g4. 2. Qg4+ wins the rook after Black moves his king.