Adversarul alege strategia și mutarea.

Because Romanian usually puts the definite article at the end of the noun.

• adversar = opponent / adversary
• adversarul = the opponent / the adversary

So -ul is the masculine singular definite article here.

For the same reason: they are definite nouns.

• strategie = strategy
• strategia = the strategy
• mutare = move
• mutarea = the move

Here, -a is the feminine singular definite article.

Romanian normally uses a postposed definite article, which means the article is attached to the end of the noun instead of standing before it.

So instead of English-style the opponent, Romanian says adversarul.

Compare:

• un adversar = an opponent

• adversarul = the opponent

• o strategie = a strategy
• strategia = the strategy

This is one of the biggest differences between English and Romanian.

Alege is the 3rd person singular present tense of the verb a alege, meaning to choose.

So:

• eu aleg = I choose
• tu alegi = you choose
• el/ea alege = he/she chooses

Since adversarul is singular, the verb is also singular: alege.

Yes. If Romanian means the strategy and the move, both nouns are normally marked as definite:

strategia și mutarea

If you change one of them, the meaning changes:

• strategia și mutarea = the strategy and the move
• strategia și o mutare = the strategy and a move
• o strategie și o mutare = a strategy and a move

So in standard Romanian, if both nouns are definite, each one normally carries its own definite ending.

Because pe is not used with most inanimate direct objects.

In Romanian, pe often marks a specific human or animate direct object, especially people. But strategia and mutarea are things, not people, so no pe is needed.

For example:

• Văd adversarul can appear in some contexts, but with a specific person Romanian often prefers Îl văd pe adversar.
• But you would not say pe strategia or pe mutarea here.

• Adversarul is the subject, so it is in the nominative.
• strategia and mutarea are direct objects, so they are in the accusative.

However, in Romanian, many nouns look the same in the nominative and accusative, especially in sentences like this. So even though strategia and mutarea are accusative in function, their forms are not different here.

Yes, Romanian word order is more flexible than English word order, but the sentence you have is the most neutral and straightforward:

Adversarul alege strategia și mutarea.

That is a normal Subject–Verb–Object order.

You can change the order for emphasis, contrast, or style, but then the sentence may sound more marked, not neutral. So for a learner, this version is the safest default.

Mutare often means move, especially in a game context such as chess, checkers, or strategy games.

It comes from the verb a muta, meaning to move.

Depending on context, mutare can also mean a relocation or shift, but in a sentence like this, it most naturally suggests a move in a game or strategic situation.

Și is pronounced roughly like shee in English.

A few useful pronunciation points from the sentence:

• ș = sh
• ge in alege sounds like the j sound in judge
• și = roughly shee

A rough English-friendly pronunciation of the whole sentence is:

ad-ver-SA-rul a-LE-je stra-te-JEE-a shee mu-TA-re-a

That is only an approximation, but it is a helpful starting point.