I modified Neophyte a tiny bit and put the changed version together with source on my ftp site.
You can have a command line parameter to increase the search depth.
Default is now 4 (was hardwired at 3) and you can make it anything from 1 to 6 plies. At 6 plies, it will take an eternity to search, so I don't recommend it.
There was also a small bug if you told it 'go' because a 'continue' was missing.
A few other minor nits were tweaked.
I tried to send the updated stuff to the original author, but the email address from the source code headers bounced.