  Counterfactual communication, i.e., communication without particle travelling
in the transmission channel, is a bizarre quantum effect. Starting from
interaction-free measurements many protocols achieving various tasks from
counterfactual cryptogrphy to counterfactual transfer of quantum states were
proposed and implemented in experiments. However, the meaning of
conterfactuality in various protocols remained a controversial topic. A simple
error-free counterfactual protocol is proposed. This protocol and its
modification are used as a test bed for analysis of meaning of
counterfactuality to clarify the counterfactuality status of various
counterfactual proposals.
