If I, as the player, could go to the inn where my target was staying, find the chair to funnel him to, calculate the distance from the chair to the manure pile outside, sniff the manure to assertain its level of explosiveness, sleep with the barmaid to coax her cooperation, and hide in the woods to direct the execution of the plot, I'd be pretty happy that it's player skill deciding the outcome of the plot and therefor I don't need to game to calculate the chances for me. But I think that's a different game.
Also, I think that's a game I really want. Court Spymaster, from the teams that brought you Hitman and Crusader Kings. Serve as a loyal Spymaster, or sleep with his wife and daughter, you decide. Release date 2024