Chess Training

Here is a classic example of Corresponding Squares and Triangulation: Pairs of Reciprocal Zuzwang exist: d6(w) and d8(b) c5(w) and c7(b) The black zugzwang squares, d8 and c7, border c8. The white zugzwang squares, d6 and c5, border d5. Therefore, d5(w) and c8(b) are also corresponding squares in this position. This essentially means: If White moves his King to c5, Black must be able to play Kc7 If White moves his King to d6, Black must be able to play Kd8 If White moves his King to d5, Black must be able to play Kc8 The sets of squares are said to be in correspondence. Black must avoid moving into a corresponding square without white already occupying the other square in correspondence: If Black plays Kc7, White can win with Kc5 If Black plays Kc8, White can win with Kd5 If Black plays Kd8, White can win with Kd6 So, the goal for white is to force Black to move in the current position, because c8(b) and d5(w) are in correspondence. Unfortunately, it is White's move. White must los...