Popeye Windows-32Bit v4.63 (512 MB)

1.Se4-c3 + !

1...Ke2-e1

2.Rh3-h1 #

1...Ke2-d3

2.Ka1-b1 zugzwang.

2...Kd3-c4

3.Be3-b6 zugzwang.

3...Kc4-b4

4.Rh3*h4 #

1...Ke2-f1

2.Rh3-h2 zugzwang.

2...Kf1-e1

3.Rh2-h1 #

2...h4-h3

3.Ka1-b1 zugzwang.

3...Kf1-e1

4.Rh2-h1 #

solution finished. Time = 0.015 s