In last weeks post "searching for Steve Stoyko" I explained the dilemma I encounter when I select positions for my Stoyko Exercises. A Stoyko Exercise is the most challenging when one starts it without having a clue about the game continuation or the given analyses. When the position meets these requirements, the exercise comes really close to a real otb chess game. But the exercise also demands that the position is complicated and/or dynamic. And last, but not least, it is best if I can compare my exhaustive analysis with those of a much stronger annotator.
But finding positions which meet those criteria is impossible without a glance at the position and the continuation and analysis, which at least gives away candidate moves. I absolutely don't want this to happen, so I have found ways to tackle this problem, but not to my complete satisfaction.
At the moment I am using positions from two sources. I get my positions from Agaards "Excelling at chess calculation" and from Pata Gaprindashvilli's "imagination in chess". These positions are in general sufficiently complicated to offer a real test to my calculation powers. Because the answers and analysis are given at the end of the book, I do not have to fear getting involuntarily preview at the solution.
There is however a small negative side to this method. The positions I get are not only highly tactical, but they also have a very clear "solution". Contrary to real games, every position can be solved to a clear advantage (win) or equal position (draw). So there still is an certain urge to obtain a database with positions that do not lead to a clear cut conclusion. Alastairs suggestion to let another player do the selecting might be the best way to get exactly what I want. Teaming up with a player of more or less equal strength and exchange positions is probably the way to go.
Thanks to everyone who gave me suggestions to find Steve Stoyko. Your help is greatly appreciated.