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

EGTB: win in 8 half-moves

# move score
1 Kb5 win in 7 half-moves
2 Kc5 win in 13 half-moves
3 Rc3 win in 13 half-moves
4 Kb6 win in 17 half-moves
5 Kd3 win in 17 half-moves
6 Kb7 draw
7 Kc7 draw
8 Kf3 draw
9 Ra1 draw
10 Ra6 draw
11 Rb3 draw
12 Kd2 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ke2 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Kf2 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Ra2 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Ra8 loss in 2 half-moves
26 Rd3 loss in 2 half-moves