To follow up on plus1's comment, consider things like
rb1k2r6kr/85b1p/3p1p1p2p3pP/pqpPpPpPrpPp1pP1/PpP1P1P1pP1PpP2/1P6P3P3/81K6/4K38 w KQkqk - 1 0 1
as well. It is clear that if White takes the queenrook eventually the Black forces will break through yet many engines can't resist the lure of decreasing the points deficit.