100 ( +1 | -1 ) scientificchess is a science: making hypotheses, checking conclusions, gathering empirical evidence. But of course, all good scientists must exercise a good deal of creativity.
I wouldn't use "logical" to describe chess, since this word usually denotes mathematically precise reasoning. Such reasoning does occur, for example, in positions where a checkmate or stalemate or other draw is forced, or in conversion to a well-documented and proven won endgame. But this type of reasoning is rare in chess. A large majority of the moves do not carry this type of "proof" with them. For example, suppose your opponent hangs a knight on the fifth move of a game, the position being roughly equal otherwise. You know you should take the knight and that a won position is the result (though of course you can err), but it is science, not mathematical logic, that tells you this. Mathematical logic is only present when you have proven the win in _all_ possible cases.