Kriegspiel - positions for solving 1

Here nothing is known about position of black pieces. Give mate in 2!

#2 (16+0)
Kriegspiel

Here are known all pieces on board. Give mate in 2. Then follow instructions under diagram and obtain position b), solve it. Then again follow instruction under diagram and obtain position c). Solve it.

Be very precise as changing position a bit changes course of the solution!

#2 (6+9)
Kriegspiel
b) +bSa5
c) =" b) + pb4 -» d4

Here are known all pieces on board. Give mate in 2.

Be very precise as announcements of judge must be taken into consideration!

#2 (8+12)
Kriegspiel

Here are known all pieces on board. Give mate in 2. Then follow instructions under diagram and obtain position b), solve it. Then again follow instruction under diagram and obtain position c). Solve it.

Be very precise as changing position a bit changes course of the solution!

#2 (10+11)
Kriegspiel
b) pa4 -» b6
c) pa4 -» c5

Pieces on board are known and together with black dark-squared Bishop those are all pieces, it means black has 3 units in all. Give mate in 8. Be sure not to capture black bishop prematurely as it would result in stalemate!

This one is very difficult for solving...

#8 (4+2)
Kriegspiel
Black has Bishop somewhere on dark squares, not exactly known where.