To follow up on plus1's comment, consider things like rb1k2r/8/3p1p1p/pqpPpPpP/PpP1P1P1/1P6/8/4K3 w KQkq - 1 0 as well. It is clear that if White takes the queen eventually the Black forces will break through yet many engines can't resist the lure of decreasing the points deficit.