The upper bonus pays 35 points for a subtotal of 63 across the first six boxes. No other box on the card moves the total that much in one go.

Sixty three means three of each number

Three ones, three twos, three threes, three fours, three fives and three sixes add up to exactly 63. That is the benchmark the target is built around.

You do not have to hit three of every number. You have to break even against that line, and the arithmetic of doing so is what makes the bonus interesting.

Every fourth die banks a spare

A fourth six puts you six points ahead of the line. That surplus covers a later box where you could only find two.

This is why collecting high numbers early matters more than it looks. A strong Sixes box early buys you room to miss twice later.

Falling two short costs far more than two points

A subtotal of 61 scores 61. A subtotal of 63 scores 98. The two points between them are worth 37.

Treat the run at the bonus as a single decision rather than six separate ones. Once you are meaningfully behind the line with few upper boxes left, the bonus has already gone and the points are better spent elsewhere.

Know the turn where you give it up

Work out the gap before you commit a roll. If you need four sixes from your last two upper boxes, the bonus is realistically finished.

At that point the upper boxes become dumping ground for bad turns, which is useful in itself. Zeroing Ones costs almost nothing once the bonus is out of reach.

Do not spend good rolls on boxes worth little

Three ones scores three points and moves you three points along the line. The same roll in Chance might score fifteen.

Early on, the low boxes are the cheapest place to put a turn that failed. Late on, they are the cheapest place to take a zero.

Play the board, not the target

The bonus is large enough to chase and small enough to abandon. A large straight is 40 points on its own, more than the bonus, and it needs one good turn rather than six disciplined ones.

Count what is still open on your card before each decision. The right choice changes as the boxes fill.