10 unexpected  checkmates that the  checkmates can encounter during a match.    
1- Smothered mate     
 2- Checkmate by a pawn and a Knight       
 3 - Alekhine's sudden checkmates with a Bishop and Knight    
  4- Damiano's mate                
 5- Lollis's mate   Queen + pawn      
   
  6- Damiano's  Bishop mate      
  7-  Quick checkmate in Van't Kuijs opening       
  8- Back-rank mate           
  9- Suffocation mate     
  10- Greco's mate