Determine your calculating power

Here you get tactical positions from real games - you get time to think about the position first:

First you get time to think about a position

Then you have to indicate a series of best moves - but you do not get to actually move the pieces - instead you need to imagine the moves in your head. This is excellent training for your visualisation skills:

Now you have to indicate moves

When you are finished, click on "Check" and your moves will be graded against the best engine lines.