I saw 1.Qc5 almost immediately, but it took me at least a couple of minutes to work out that 2.Ba3 was the right continuation- after that the rest fell into place within seconds. I got hung up on 2.Ba3 because I forgot for a minute that black couldn’t play 2. …Kb6.
1. Qxc5+ Kxc5 2. Ba3+ Kc4 3. Bb5+ Kxc3 4. Rbc1#
It is a little harder than the previous one. It took me 2 minutes 13 seconds to solve.
I saw 1.Qc5 almost immediately, but it took me at least a couple of minutes to work out that 2.Ba3 was the right continuation- after that the rest fell into place within seconds. I got hung up on 2.Ba3 because I forgot for a minute that black couldn’t play 2. …Kb6.