152-mate in two solution.

Solution: 1. Sa1-b3! threat 2. Sb3-a5#
 1... Sc8-b6+ 2. Sa8xb6#
 1... d5 ad lib 2. Bh7-g8#
 1... Sc1xb3 2. c2xb3#

151-White mates in two solution.

Solution: 1. Sc4-d2! threat 2. Sd2-b3#
 1... Bc8-e6 2. Sg7xe6#
 1... c5-c4 2. Ra5-d5#
 1... e3 ad lib 2. Bh2-g1#

150-Mate in three solution.

Solution: 1. Kb2! [threats 2. Bc3#]
 1... Bd4+ 2. Bxd4
    2... Rc5 3. Bxc5#
    2... Rxd4 3. Rxd4#
 1... Re5 2. Bxe5
    2... Bd4+ 3. Rxd4#
 1... Re5 2. Rc3
    2... Bd4, Rxe4 3. Sd3#
    2... Bxf2, Rd5 3. Rc4#
 1... Rd4 2. Bxd4
    2... Bxd4+ 3. Rxd4#
    2... Bb6/a7/d6/e7/f8 3. Bc3#

149-Mate in two Solution.

Solution: 1. Bb2-a1! waiting
 1... Sf8 ad lib 2. Bg4xe6#
 1... b6 ad lib 2. Sb3-a5#
 1... e3 ad lib 2. Sb3-d2#
 1... Sg3 ad lib 2. Bg4(x)e2#

148-Mate in two solution.

Solution: 1. Bb1-g6! waiting
 1... Sc7 ad lib 2. Sa7(x)b5#
 1... d7 ad lib 2. Sa7-c6#
 1... Sg1 ad lib 2. Sh2(x)f3#