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
[FEN “8/1p3r2/1p3np1/1kp5/2N1b3/2P3B1/P5PP/3B3K w – – 0 4”]
Calculate a win for White
[FEN “8/pp3r2/1n1R1np1/k1p5/4b3/2P1N1B1/P3B1PP/7K w – – 0 1”]
Mangg – Schulz
Langenwang, 1990
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
Download Step By Step: Calculation #27 in PDF format.
All previous columns are available in the ChessCafe.com Archives.
Copyright 2014 Mark Donlan and ChessEdu.org. All Rights Reserved.
Leave a Reply