  The sero-sum stopping game for the stochastic sequences has been formulated
in late sixties of the twenty century by Dynkin (1969). The formulation had the
assumption about separability of decision moment of the players which
simplified the construction of the solution. Further research by Neveu (1975)
extended the model by admitting more general behaviour of the players and their
pay--offs. In new formulation there is the problem with existence of the
equilibrium. The proper approach to solution of the problem without restriction
of former models was developed by Yasuda (1975). The results was crucial in
these research. The author made often reference to the Yasuda's (1985) result
in his works (see the author's papers (1993,1995)) as well as see results of
others stimulated by this paper. Withal, in this note another stopping game
model, developed by Yasuda with coauthors (see e.g. Kurano at al. (1980) and
the author and Yasuda (1995)) is recalled. The application of the model to an
analysis of system of detectors shows the power of the game theory methods.
  In the last part of the paper I would like to express my personal relation to
the Masami Yasuda game.
