I changed DGF into DIG, since that put the tasks in the right order, and it is easier to remember than DFG. DIG = domination square, invasion square, guard. So now we get M WIMP DIG. I always used invasion square (or convergence square) in stead of focal point in the past, btw. When I tested the system we are trying to develop against practice, I noticed that we might count at the wrong moment. I started with counting right away when I look for domination squares. The reason for this is that I want to prune squares which there might be a contact, but which are not interesting. But look what happens in this position when you start counting: black to move 5r1k/pp6/3bprqp/3p2p1/1P1P4/P2QPNPP/6K1/3R1R2 b - - 1 1 solution Domination squares: f3, f1, d3, g3 Invasion square g4 If I count the situation on f1, then it is attacked twice and defended four times, so it scores minus two. But that score is irrelevant, since with two power moves, I can harass 3 of the 4 defenders. ...