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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kc2 draw
5 Kc8 draw
6 Ke1 draw
7 Ke2 draw
8 Ke3 draw
9 Ra2 draw
10 Rb5 draw
11 Rb7 draw
12 Rc2 draw
13 Kc1 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Kd1 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Kd6 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Kd8 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb8 loss in 2 half-moves