Publisher: van Wijgerden, Pages: 56, Paperback, English Next to the exercises there are reminders in the workbook. These are short recapitulations of the material from the manual for the students.
There are 12 reminders:
- Discovered and double check
 - Attack on a pinned piece
 - Access and mating patterns
 - Pawn ending: the square of the pawn
 - Eliminating of the defence
 - Defending against the double attack
 - Draw
 - X-ray
 - Defending against the pin
 - Mobility
 - Key squares
 - A pinned piece is not a good defender
 
On the remaining 43 pages there are always 12 diagrams a page. That means a total number of 43x12-27 (the drawings )= 489 positions.
The issues of the exercises correspond to those in the manual.
See the Manual for the chess trainer.