How many times have you chess players lost to a Bishop sacrifice on the square h3 when battling against a dyed in the wool Kings Indian Defense player? It often makes no difference whether said square is occupied by a pawn or not! In so many Mar Del Plata variations, the Queen’s Bishop(c8 Bishop) just calmly remains on his initial square while Black is advancing his King Side pawns towards the smothered White Monarch.
If White does not successfully invade on the Queen Side, then about one fourth of the Black mating attacks involve the c8 Bishop making a single decisive move. Katze, playing out of French Guiana at the internet chess club, allowed White to exchange his e2 Bishop for the c8 monster making White’s Queen Side build up that much more relaxing and stress free!
I know some of the old timers who played at Dave’s Chess Studio in Houston will read this someday and remember the good old days where the Wheelers, Chalkers, Pattesons, Calogridis, Bighamians, Halls, Matlocks, Campbells, Innocencios, Cliff Bunchs, David Johns, Chris Lands, Lee Gaskills, Mark Dejmeks, Charlie Burfords and many other strong players shared their knowledge with all the weaker players. Those were the days my friends and they came to an end.