  We analyse the role of degree of entanglement for Vaidman's game in a setting
where the players share a set of partially entangled three-qubit states. Our
results show that the entangled states combined with quantum strategies may not
be always helpful in winning a game as opposed to the classical strategies. We
further find the conditions under which quantum strategies are always helpful
in achieving higher winning probability in the game in comparison to classical
strategies. Moreover, we show that a special class of W states can always be
used to win the game using quantum strategies irrespective of the degree of
entanglement between the three qubits. Our analysis also helps us in comparing
the Vaidman's game with the secret sharing protocol. Furthermore, we propose a
new Vaidman-type game where the rule maker itself is entangled with the other
two players and acts as a facilitator to share a secret key with the two
players.
