Die Frage ist zwar knifflig, aber wir raten trotzdem.

Because Frage is a feminine noun in German, so its nominative singular article is die.

• die Frage = the question
• eine Frage = a question

In this sentence, Die Frage is the subject of ist, so it is in the nominative case.

zwar ... aber is a very common German pattern meaning something like:

• it is true that ... but ...
• admittedly ... but ...
• ... indeed, but ...

So:

• Die Frage ist zwar knifflig, aber wir raten trotzdem.

means the speaker is acknowledging one fact first (the question is tricky) and then contrasting it with another (we’ll guess anyway).

A useful way to think about it:

• zwar = yes, that is true
• aber = but here is the contrasting point

In German, zwar is usually placed inside the clause, often after the verb or after the subject-verb framework begins.

Here the main clause is:

• Die Frage ist ... knifflig

and zwar is inserted into that clause:

• Die Frage ist zwar knifflig

That is the normal pattern. You usually do not say:

• Zwar die Frage ist knifflig ... ❌

A more natural structure is exactly what you see here.

knifflig is an adjective. It means something like:

• tricky
• a bit difficult
• puzzling

It often suggests a problem that requires thought or cleverness, not just something generally hard.

Compared with some other words:

• schwierig = difficult
• kompliziert = complicated
• knifflig = tricky, requiring careful thought

So knifflig has a slightly more specific flavor than plain schwierig.

Because aber here connects two main clauses, and in German that is normally separated by a comma.

The two clauses are:

1. Die Frage ist zwar knifflig
2. aber wir raten trotzdem

This is standard German punctuation.

Because aber is a coordinating conjunction, and it does not change normal word order.

So after aber, German keeps normal main-clause word order:

• wir raten trotzdem

That is:

1. subject = wir
2. verb = raten
3. other elements = trotzdem

Compare with a word like deshalb, which would affect word order differently because it occupies the first position itself.

trotzdem means nevertheless, still, or anyway.

It refers back to the first clause:

• The question is tricky
• in spite of that, we guess

So it reinforces the contrast already set up by zwar ... aber.

That means the sentence has two signals of contrast:

• zwar ... aber
• trotzdem

This is not wrong. It can sound natural because trotzdem adds the idea of despite that fact.

Yes, trotzdem could go somewhere else. German adverbs are often fairly movable.

Here:

• aber wir raten trotzdem

is completely natural.

You could also say:

• aber trotzdem raten wir
• aber wir trotzdem raten ❌

The second one is wrong because German main clauses still need the finite verb in second position.

So trotzdem can move, but the sentence structure must still obey the verb-second rule.

Good question: raten can mean both, depending on context.

1. raten = to guess

   • Wir raten. = We are guessing / We guess.

2. jemandem raten = to advise someone

   • Ich rate dir, ... = I advise you to ...

In this sentence, wir raten clearly means we guess, because there is no person being advised, and the context is about a question.

Because raten meaning to guess can be used intransitively in German.

So wir raten by itself is fine and means:

• we guess
• we’re taking a guess

German does not always need an explicit object where English might expect one.

You could add more information, but you do not have to.

Because German main clauses follow the verb-second (V2) rule.

In the clause:

• Die Frage ist zwar knifflig

the first position is taken by Die Frage, so the finite verb ist must come next.

Structure:

• Position 1: Die Frage
• Position 2: ist
• rest: zwar knifflig

This is one of the most important basic rules in German sentence structure.

Yes, it is in the present tense:

• ist = is
• raten = guess / are guessing

But in English, present tense forms are often translated flexibly depending on context. So natural translations might include:

• The question is tricky, but we’ll guess anyway.
• The question is tricky, but we’re guessing anyway.
• The question is admittedly tricky, but we’ll still take a guess.

German present tense often covers meanings that English expresses with either simple present, present progressive, or even will + verb, depending on context.

Yes, grammatically that would work:

• Die Frage ist zwar schwierig, aber wir raten trotzdem.

But the nuance changes slightly:

• schwierig = difficult
• knifflig = tricky, requiring some cleverness

So knifflig feels a bit more vivid and specific here. If the speaker wants to say the question is not just hard but also a bit puzzling or tricky, knifflig is a better fit.