I always screw these up, so if I'm off feel free to jump in. Anyway, this looks like the way things will shake out this weekend:
If ISU beats Idaho, the Bengals will finish third and will play the winner of the 6 vs 11 game on Thursday at 905 pm MT.
If ISU loses to Idaho and North Dakota beats Montana State, ISU will finish fifth and will play the 12 seed on Tuesday at 335 pm MT.
If ISU and North Dakota both lose, the Bengals will finish fourth and will play the winner of the 5 vs 12 seed Thursday at 335 PM MT.
If ISU beats Idaho, the Bengals will finish third and will play the winner of the 6 vs 11 game on Thursday at 905 pm MT.
If ISU loses to Idaho and North Dakota beats Montana State, ISU will finish fifth and will play the 12 seed on Tuesday at 335 pm MT.
If ISU and North Dakota both lose, the Bengals will finish fourth and will play the winner of the 5 vs 12 seed Thursday at 335 PM MT.