Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Ka7 draw
4 Kc2 draw
5 Kc4 draw
6 Kd2 draw
7 Kd4 draw
8 Ra3 draw
9 Rb3 draw
10 Rc4 draw
11 Rc5 draw
12 Rc6 draw
13 Rc7 draw
14 Rc8 draw
15 Ke2 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Rc1 loss in 2 half-moves
19 Rc2 loss in 2 half-moves