I moved into a new house in the summer and unbeknown to me at the time there
was only about 4" of topsoil over approx 4ft of very thick heavy clay.

Since the rain started in the autumn, (I'm guessing you already know what
I'm going to say) the garden has become progressively more and more water
logged.

I am relatively new to gardening and would like some suggestions as how to
deal with this problem. Apart from moving, any ideas very much received.

Thanks