Two passports for travel between Russia, the UK and the Netherlands

I am a citizen of Russia. Our regulations allow us to have two valid Russian passports (for travel to other countries) at the same time. Currently I have two valid Russian passports:

passport #1 contains a multiple-entry Schengen visa,
passport #2 contains the UK Standard Visitor visa.

I am going to visit the UK and the Netherlands:

flight #1: Moscow - London,
flight #2: London - Amsterdam,
flight #3: Amsterdam - Moscow.

I will obviously use passport #2 for flight #1, and passport #1 for flight #3. What I don't know is which passport I should use for flight #2. If I use passport #1, the UK Home Office will probably not see that I have left the UK (simply because I will use different passports when entering and leaving the UK, and air companies share travel data with the Home Office). If I use passport #2, then I will probably have some trouble when entering the Netherlands (because a Schengen visa is not in this passport).

Could you please tell me what I should do in this case?

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Can I use 2 different passports for entering and leaving a country?

Dual nationals may also be required by the foreign country to use its passport to enter and leave that country. Use of the foreign passport to travel to or from a country other than the United States is not inconsistent with U.S. law.

Can you travel on two passports?

There are no real restrictions or definitive rules on which passport you use to book a flight, or any other form of international travel whether via ferry or train. For example, the British passport may allow visa-free entry to more countries than your other passport.

Does Holland allow dual nationality?

Under the current Dutch Citizenship Act, you can keep dual nationality and multiple passports for as long as you live, provided you always carry a valid Dutch passport or identity card and do not voluntarily obtain another nationality.

Can I enter the Netherlands with a British passport?

You can travel to countries in the Schengen area for up to 90 days in any 180-day period without a visa. This applies if you travel as a tourist, to visit family or friends, to attend business meetings, cultural or sports events, or for short-term studies or training.

Traveling with two passports - I almost got arrested | Jure Sanguinis Italian Dual Citizenship

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