Black to move and win, Saw this nice win on my Twitter Feed.

[AdminX]

[Ferdy]

Qxb5 Kxb5
var1: (Ka3 Qa5 Ra4 Bxb2#)
Rc5
var2: (Na7? Ka4 (Kb4? c5) Bc6 Kb4)
Ka4 Ra5#

Took me around 5 minutes, was fascinated exploring var2, where in fact the simple Rc5 will end it .

If human will follow how computer plays, in tactical positions, a qsearch() could be enough, that is consider only capture and checking moves.

[AdminX]

Qxb5 Kxb5
var1: (Ka3 Qa5 Ra4 Bxb2#)
Rc5
var2: (Na7? Ka4 (Kb4? c5) Bc6 Kb4)
Ka4 Ra5#

Took me around 5 minutes, was fascinated exploring var2, where in fact the simple Rc5 will end it .

If human will follow how computer plays, in tactical positions, a qsearch() could be enough, that is consider only capture and checking moves.

I had not looked at 2nd variation once I saw the main line.