Contradiction with 1 Samuel 9:25
2 Chronicles 11:6 mentions Rehoboam building cities for defense, whereas 1 Samuel 9:25 refers to building the king’s residence instead of fortifications.
1 Samuel 9:25: And when they were come down from the high place into the city, [Samuel] communed with Saul upon the top of the house.
Contradiction with 2 Samuel 5:7
2 Chronicles 11:6 describes fortifications by Rehoboam, whereas 2 Samuel 5:7 depicts David capturing strongholds, not building them.
2 Samuel 5:7: Nevertheless David took the strong hold of Zion: the same [is] the city of David.