Strategin är så pass tydlig att lagkamraten förstår nästa drag.

In this sentence, så pass means something like to that extent, that much, or more naturally in English, clear enough.

So:

• så pass tydlig = clear enough / so clear
• Strategin är så pass tydlig att ... = The strategy is clear enough that ...

It is a very common Swedish expression, and it often softens or calibrates the strength a little. It can sound slightly less absolute than just så tydlig.

Because tydlig agrees with strategin, which is a singular common-gender noun.

Swedish predicate adjectives after är change form depending on the noun:

• common gender singular: tydlig
• neuter singular: tydligt
• plural: tydliga

Examples:

• Strategin är tydlig. = The strategy is clear.
• Målet är tydligt. = The goal is clear.
• Planerna är tydliga. = The plans are clear.

Since strategin is singular and common gender, tydlig is the correct form.

That -n is the definite ending for these nouns.

In Swedish, the definite article is usually attached to the end of the noun:

• strategi = a strategy

• strategin = the strategy

• lagkamrat = a teammate
• lagkamraten = the teammate

So instead of putting a separate word like the in front, Swedish often adds the definite marker to the noun itself.

It creates a result clause: so/clear enough ... that ...

Structure:

• så pass + adjective + att + clause

Here:

• så pass tydlig att lagkamraten förstår nästa drag
• so clear / clear enough that the teammate understands the next move

This is similar to English patterns like:

• so clear that ...
• clear enough that ...

So att here means that, not the infinitive marker to.

Because after att introducing a subordinate clause, Swedish normally keeps subject + verb order:

• att lagkamraten förstår nästa drag
• that the teammate understands the next move

Breaking it down:

• lagkamraten = subject
• förstår = verb
• nästa drag = object

A useful thing to remember is that if you add a sentence adverb like inte, it usually comes before the verb in a subordinate clause:

• att lagkamraten inte förstår nästa drag
• that the teammate does not understand the next move

That is a classic Swedish subordinate-clause pattern.

Förstår is the present tense of förstå = to understand.

So:

• förstå = to understand
• förstår = understand / understands

Swedish present tense does not change for person the way English does. Compare:

• jag förstår = I understand
• du förstår = you understand
• han förstår = he understands
• lagkamraten förstår = the teammate understands

So förstår works for all persons in the present tense.

Here drag means move, especially in a strategic, game-like, or tactical sense.

So:

• nästa drag = the next move

That could be a literal game move, like in chess, or a figurative move, like the next step in a plan.

The word drag can mean other things in other contexts too, but in a sentence about strategy, move is the natural meaning.

Nästa means next, and it is one of those words that is often used in the same form regardless of gender or number in ordinary modern Swedish.

For example:

• nästa dag = next day
• nästa år = next year
• nästa drag = next move

So you do not need to worry much about changing nästa the way you would with many other adjectives.

Yes, you can say it in other ways.

For example:

• Strategin är så tydlig att lagkamraten förstår nästa drag.
• Strategin är så pass tydlig att lagkamraten förstår nästa drag.
• Strategin är tillräckligt tydlig för att lagkamraten ska förstå nästa drag.

These are all natural, but they are not identical in tone:

• så tydlig att = so clear that
• så pass tydlig att = clear enough / so clear to that extent
• tillräckligt tydlig för att ... ska förstå = sufficiently clear for ... to understand

So så pass is not required, but it is very idiomatic.

Yes. Lagkamrat is a compound:

• lag = team
• kamrat = friend / companion / mate

So lagkamrat literally means something like team-mate, and in Swedish compounds are usually written as one word.

This is very common in Swedish. English often uses a space or hyphen where Swedish uses a single compound word.

A few parts may be tricky for an English speaker:

• strategin — stress near the end
• är — sounds a bit like English air, but not exactly
• tydlig — the y sound is difficult for many English speakers
• förstår — the ö is also a special Swedish vowel
• drag — long vowel

A rough, very approximate guide might be:

• Strategin ≈ stra-teh-GEEN
• är ≈ air
• så pass ≈ soh pass
• tydlig ≈ TOOED-lig
• att ≈ aht
• lagkamraten ≈ LAHG-kam-rah-ten
• förstår ≈ fer-STOR
• nästa ≈ NESS-ta
• drag ≈ drahg

That is only approximate, but the main trouble spots are usually y in tydlig and ö in förstår.