Step by Step: Calculation #27
By Mark Donlan
Step by Step: Calculation is designed to improve your visualization and calculation skills. The premise is simple: find the winning move in the first diagram and then calculate the win from the second diagram and determine how it relates to the first. On occasion follow-up questions will be asked relating to various sidelines. For best results, set the position up on the board and think for as long as you need without moving the pieces.
White to move and win
Calculate a win for White
Mangg – Schulz
1.Rxb6 axb6 [1…Kxb6 2.Nc4+ Kc6 (2…Ka6 3.Nd6+; 2…Kb5 3.Nd6+) 3.Ne5+] 2.Nc4+ Ka4 [2…Kb5 3.Nd6+; 2…Ka6 3.Nd6+] 3.Bd1+ Kb5 4.Nd6+ 1–0
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