A book with examples and explanations of the fantastic genre of SAT from the authors and developers of the genre - Salai, father and son. SAT - every field near the king must be controlled by the figures on the opposite side or locked by their own. If this is not the case, then this is the king's shah. Possible protections:
1) block this field
2) include the linear figure of the opposite side in this field,
3) go to the king.
Lack of protection - mat.
