The logic of counting
I have a set of 100 tactical problems. I use this to get a better idea of what salient cues I need to solve the problems. While investigating them I noticed different categories in which to divide the logic that is exposed by the problems. One such category is counting. Diagram 1. Black to move 5rk1/2p4p/1p1p1qpb/p1nPp3/2P1P3/1PN1B1Pb/P3B2P/2Q1R1K1 b - - 0 26 Pinho, P. vs. Gallagher, J., Gibraltar 2013 Attacking is about invasion. In order to decide where to invade, I need an overview of the focal points on the board. Diagram 2. Same position. Black to move Red digits indicate the squares where white has the upper hand. Green digits indicate where black has the upperhand. The logic that I want to develop revolves around the invasion squares. Luring and trading and clearing and chasing etc. are the tools in the box to change the balance on the invasion squares. The salient cues are: a Queen on g2 or f1 is mate. Although black has the upperhand on f3, he cannot make use of it ...