Стратегія допомогла переможцю.

Because it is the subject of the sentence, so it is in the nominative singular.

• стратегія = strategy
• nominative singular = the basic dictionary form here

It is a feminine noun, which is also important because the past-tense verb agrees with it.

In the past tense, Ukrainian verbs agree with the subject in gender and number.

Since стратегія is feminine singular, the verb must also be feminine singular:

• допоміг = helped, masculine
• допомогла = helped, feminine
• допомогло = helped, neuter
• допомогли = helped, plural

So Стратегія допомогла... is grammatically matching стратегія.

Because the verb допомогти normally takes the dative case in Ukrainian.

English says help someone, but Ukrainian grammar treats it more like help to someone. So:

• переможець = winner
• переможцю = to the winner / winner in the dative

So after допомогти, переможцю is the expected form.

The dictionary form is переможець.

That means:

• переможець = winner
• переможцю = to the winner

This is a common thing in Ukrainian: the form you see in a sentence is often not the dictionary form, because nouns change by case.

Yes. Переможцю and переможцеві are both acceptable dative singular forms of переможець.

So both of these are correct:

• Стратегія допомогла переможцю.
• Стратегія допомогла переможцеві.

The shorter form -цю is very common, and the longer form -еві is also standard.

Usually, yes: it is the masculine noun.

Depending on context, a masculine form can sometimes be used generically, but if you specifically mean a female winner, Ukrainian would normally use переможниця.

Then the sentence would be:

• Стратегія допомогла переможниці.

That means The strategy helped the female winner.

Because Ukrainian has no articles.

There is no separate word for a/an or the. Context tells you whether English should use:

• a strategy
• the strategy
• a winner
• the winner

So Стратегія допомогла переможцю can be translated in different ways depending on context, even though the Ukrainian sentence itself has no article words.

No, Ukrainian word order is more flexible than English word order.

Стратегія допомогла переможцю is a natural, neutral order:

• Стратегія = subject
• допомогла = verb
• переможцю = indirect object in the dative

But you can move the words for emphasis:

• Переможцю допомогла стратегія. = puts more focus on the winner
• Допомогла переможцю стратегія. = more marked or stylistic

Because the noun endings show the grammatical roles, Ukrainian does not rely on word order as much as English does.

It is past tense of the perfective verb допомогти.

That means the sentence presents the helping as a completed action or as something that successfully had an effect.

Compare:

• допомогти → perfective → completed help
• допомагати → imperfective → helping, was helping, used to help

So:

• Стратегія допомогла переможцю. = The strategy helped the winner.
• Стратегія допомагала переможцю. = The strategy was helping / used to help the winner.

Not in natural English.

A grammar-based gloss might suggest something like helped to the winner, because переможцю is dative, but natural English simply says:

• The strategy helped the winner.

This is a very common difference between languages: the same idea can use different case patterns or sentence structures.

A rough English-friendly pronunciation is:

Stratehiya dopomohla peremozhtsyu

A few useful points:

• г in Ukrainian is usually like English h, not hard g
• я sounds like ya
• ю sounds like yu
• the ending -цю sounds roughly like -tsyu

So the hardest part for many English speakers is переможцю, especially the жц cluster before ю.