Hindsight
Same position. I'm trying to map some invisible structures, in order to get more insight in the preconditions for an attack. Diagram 1. BLACK to move rnb2rk1/1pq1bppp/p2ppn2/8/3NPPP1/2N1B3/PPP1B2P/R2Q1RK1 b - g3 0 10 The arrows in diagram 1 show the most important LoAs along which the battle was fought. Nf6 was harassed by pawn g5 BLUE The g-file was cleared from the white king and g-pawn. BLUE the first rank was cleared from the Queen and rook f1 YELLOW the f-file was cleared from the f-pawn GREEN the diagonal was cleared from the f-pawn g7 became the focal point where the white pieces pried the black killbox open. The following pieces were traded or played no role: Diagram 2. BLACK to move RED the white rook was traded with blacks dark squared bishop. That was a crucial defender of the dark squares around the black king. Notice that the focal point g7 is a dark square. BLUE black knight on b8 was traded for the white knight on d4. It just consumed 2 tempi, and invited the whit