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1. Positioning and eliminating three swordsmen, improved by griffons.
2. The last turn for the cavalry in the first round remains. The cavalry moves to the corner.
3. Start of the third round.
4. Finishing blow.
The cavalry could have suffered fewer losses. If, in the second round, spearmen and swordsmen finish off the improved griffons without the archers' participation, then the archers eliminate the stack. In this situation, the archers had to finish them off (in half of the cases, it turned out that the archers didn't need to finish them off).
The battle tactics and positioning are not very good – it is very important that the griffon stack is eliminated by spearmen and swordsmen so that the marksmen don't just stand around in the 2nd round – but this depends on the damage spread; in my case, they weren't eliminated in 2 attempts.
It would be much better to swap the spearmen and cavalry; then, in the 1st round, the marksmen would be taken care of, and they wouldn't have to wait in the 2nd round, allowing the upper-left stack to attack.
Added after 31 seconds
What were the losses in the game? Is 1 cavalry, swordsmen, and 30 spearmen a good result?
The losses were 3 cavalry, 5 swordsmen, and 5 spearmen.
Added after 2 minutes
There were 14 archers on the Grand Order