Yes, you may start by analyzing 1.Rxc7+ Kxc7 2.Qa7+ Kd8 3.Qxb8+, or 2. ... Kc8 3.Nb6+ Kd8 4.Qxb8+. Maybe White's winning. But as lines grow longer and murkier, it's time to stop, make mental notes of your discoveries, and move ahead -- or rather, move back. Return to the original position and look for other candidate moves. What about reversing the move order? This means sacrificing the Queen. Still, it might be worth looking at for a few seconds...
Yes, you may start by analyzing 1.Rxc7+ Kxc7 2.Qa7+ Kd8 3.Qxb8+, or 2. ... Kc8 3.Nb6+ Kd8 4.Qxb8+. Maybe White's winning. But as lines grow longer and murkier, it's time to stop, make mental notes of your discoveries, and move ahead -- or rather, move back. Return to the original position and look for other candidate moves. What about reversing the move order? This means sacrificing the Queen. Still, it might be worth looking at for a few seconds...