So, to repeat from last night in more detail:

1. Red-Green (SPD+Greens): one short of majority, would be possible as minority government with Left Party outside support, but a leader of the latter was negative on it
   
2. Black-Green (CDU+Greens): one short of majority
   
3. Grand Coalition (CDU+SPD): would have comfortable majority
   
4. Red-Red-Green (SPD+Left Party+Greens): would have majority, but SPD against
   
5. Traffic Lights (SPD+FDP+Greens): would have majority, but NRW FDP strongly against the other two and vice versa
   
6. Jamaica (CDU+FDP+Greens): would have majority, but NRW FDP and Greens incompatible

If I am a pessimist (from my political point of view), this is heading for a Grand Coalition. If I am an optimist, maybe the Greens can get the SPD swallow some level of cooperation with the Left Party.

_{*Lunatic*, n.
One whose delusions are out of fashion.}