The haste spell grants a varying number of movement squares... after casting this spell, the monster on which it was cast will move next, regardless of its "native" speed or the speed of the enemy monsters, and the exact number of squares cannot be specified - but the fact is that any monster under the effect of "haste" can reach the enemy directly opposite it, and consequently, the adjacent enemies (occupying 2 squares).

1. It's unclear what "a varying number of movement squares" means.
- Does it mean when the spell is cast on the same unit?
- Does it mean that it depends on the magic power?
- Does it mean that different units move different distances?

If it's the third option, then it's already clear, so what is your disagreement?

2. "can reach the enemy directly opposite it, and consequently, the adjacent enemies"
Again, the question is: does it mean that the units are in their starting positions?
In that case, it's not always true that it can reach the adjacent enemies, because the first, third, and fifth rows protrude to the left.