A smile-worthy video making the rounds on YouTube shows a big dog trying to figure out how to carry a big stick across a narrow bridge.

The dog, which looks like a hefty weimaraner, tries repeatedly to cross the bridge but can’t quite get the stick to clear the railings.

The dog becomes slightly frustrated - evidenced by his whine — but he doesn’t give up.

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Hilariously, an admirer created an animated .GIF superimposing mathematical calculations over the dog's efforts.

In the end, the dog figures out how to hold the stick diagonally, allowing him to cross the bridge, stick in mouth, triumphant and rewarded with praise as he does it.

Watch the whole video here.