KPvkqq

h#7.5

8/8/8/1q5k/8/6q1/6P1/K7 w - - 0 1

1. Ka2 Qe3 g4+ Kg6 g5 Kf5 g6 Ke4 g7 Kd3 g8=Q Qa5+ Kb3 Qad2 Qc4#

set-play promotion excelsior excelsior:white self-block nocapture umnov

h#7.5

8/7k/4q3/8/8/1P6/q7/K7 w - - 0 1

1. Kxa2 Kg6 Ka3 Kf5 b4 Ke4 b5 Kd3 b6 Kc2 b7 Kb1 b8=Q+ Ka1 Qb2#

promotion single-piece single-piece:black

Note: the side to move is in check in the diagram; the solution begins with a capture.

h#7.5

6k1/8/8/8/q7/8/P5q1/K7 w - - 0 1

1. a3 Qb4 a4 Kf7 a5 Ke6 a6 Kd5 a7 Kc4 a8=Q Kb3 Qxg2 Ka3 Qa2#

set-play promotion excelsior excelsior:white closed-walk self-block single-piece single-piece:white nocheck umnov

h#6.5

8/8/8/8/1q5k/6q1/1P6/K7 w - - 0 1

Two solutions, with different first and last moves (2 starts, 2 ends).

1. Kb1 Qc5 b4 Kg4 bxc5 Kf3 c6 Ke2 c7 Kd1 c8=Q Qe1 Qc2#
2. b3 Qd2 b4 Kg4 b5 Kf3 b6 Ke2 b7 Kd1 b8=Q Kc1 Qb1#

set-play promotion excelsior excelsior:white self-block single-piece single-piece:white nocheck umnov

h#6.5

8/8/8/7k/8/4q2P/8/K3q3 w - - 0 1

Two solutions, with different first and last moves (2 starts, 2 ends).

1. Ka2 Qd1 h4 Kg4 h5 Kf3 h6 Ke2 h7 Kd2 h8=Q Kc1 Qb2#
2. Kb2 Qd1 h4 Kg4 h5 Kf3 h6 Ke2 h7 Kd2 h8=Q Qee2 Qc3#

promotion self-block nocapture nocheck umnov

Note: the side to move is in check in the diagram.

h#6.5

8/8/7k/8/8/8/2P4q/1K1q4 w - - 0 1

Two solutions, with different first and last moves (2 starts, 2 ends).

1. Ka2 Qb8 c4 Kg5 c5 Kf4 c6 Ke3 c7 Kd2 cxb8=Q Kc1 Qb2#
2. Kb2 Qhh5 c4 Kg5 c5 Kf4 c6 Ke3 c7 Kd2 c8=Q Qhe2 Qc3#

promotion excelsior excelsior:white self-block nocheck

Note: the side to move is in check in the diagram.