How to switch 2 VLANs on 3 switches?

Question

Network administration

Help me figure out VLAN, I don’t understand why it doesn’t work.
We have 3 Cisco SG300-52 switches (two 3lv and one 2lv). We will consider SW1-3lv, SW2-2lv, SW3-3lv.
We have 3 VLANs: VLAN 1 - standard shared network (10.0.0.0/18), VLAN 10 (configured for guest devices on WiFi with DHCP Relay 172.16.0.0/23), VLAN 20 - 2 local network (192.168.1.1/24)
It is necessary that HyperV virtual servers connected physically in SW1 be visible in 20 VLANs of SW3, and some ports of SW3 go to the common network of
SW1: In the first switch, all ports except one are configured in trunk 1UP10T20T. 52 port connecting SW1 and SW2 is configured as trunk 1T10T20T4095P.
SW2: In the second switch, all ports except two are configured in trunk 1UP10T20T. 52 port connecting SW1 and SW2 is configured as trunk 1T10T20T4095P. 51 port connecting SW2 and SW3 is configured as trunk 1T20T4095P
SW3: In the third switch, ports 1-50 are configured as Access 20UP. Port 52 - Access 1UP. 51 port connecting SW3 and SW2 configured as trunk 1T20T4095P.
In this form, 2 separate local networks work, and there is no connection of 192 subnets in SW3 with HV servers on SW1, and a stand-alone PC in port 52 of SW3 does not see a common local network.
I tried to configure VLAN 51 ports on SW2 and SW3 in different ways, what came of it:
General
1T20T4095P - 1- 20-
1TP20T - 1- 20-
1T20TP - 1- 20-
1T20U4095P - 1- 20-
1U20T4095P - 1- 20-
1UP20T - 1+ 20-
1T20UP - 1- 20+ 20UP
- 1- 20+
20TP - 1-
20- 1+ 20- Access 1UP - 1+ 20- 20UP - 1- 20+ Trunk 1UP - 1+ 20- 1UP20T - 1+ 20- 1T4095P - 1- 20- 1T20UP - 1- 20+ 1T20T4095P - 1- 20- 20UP - 1- 20+ Help solve the problem of how to make VLAN 1 and VLAN 20 work through an intermediate switch. UPD: Here is an example network diagram PC01 needs to see PC02 and gateway 1. This is 1 VLAN VirtSRV01 needs to see PC03 and gateway 2. This is 20 VLAN


When connecting a trunk 1T10T20T2095P SW2 and SW3, everything that is on the 1st and 2nd switch does not see 3.
The results of the configuration options for the SW2 and SW3 connections are a little higher.

Answer 1

Cisco SG300-52 switch of the second level, isn't it?
So you need a router that will route packets between grids.
And in order for all PCs to see each other, it is necessary that VLANs (vlan database) be filled on the switch.