function EExecL0 &OOO X1 X2 X3 X4 Y1 Y2 Y3 Y4 Att Sg1 Sg2 Sg3 Sg4 Sg5 Sg6 Sg7 Sg8 =
(
	if ((X1==undefined) or (X2==undefined) or (X3==undefined) or (X4==undefined) or
	(Y1==undefined) or (Y2==undefined) or (Y3==undefined or (Y4==undefined))) then return false;

	Result=false;

	if ((((X1.OB=="P") and (X2.OB=="O") and (X3.OB=="O") and (X4.OB=="O") and
	(Y1.OB=="P") and (Y2.OB=="O") and (Y3.OB=="O") and (Y4.OB=="O"))) or

	(((X1.OB=="P") and (X2.OB=="O") and (X3.OB=="O") and (X4.OB=="O") and
	(Y1.OB=="O") and (Y2.OB=="P") and (Y3.OB=="P") and (Y4.OB=="P"))) or

	(((X1.OB=="O") and (X2.OB=="P") and (X3.OB=="P") and (X4.OB=="P") and
	(Y1.OB=="P") and (Y2.OB=="O") and (Y3.OB=="O") and (Y4.OB=="O"))) or

	(((X1.OB=="O") and (X2.OB=="P") and (X3.OB=="P") and (X4.OB=="P") and
	(Y1.OB=="O") and (Y2.OB=="P") and (Y3.OB=="P") and (Y4.OB=="P")))) then 
	(
		TOProeL_Create &OOO X1 X2 X3 X4 Y1 Y2 Y3 Y4 Att
		Result=true;
	)
    else if (Att.Chk==1) then TOEmpty_Create &OOO Att
	Result=true;
	return Result;
) -- EExecL0