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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Kc5 draw
3 Kd5 draw
4 Rb1 draw
5 Rb2 draw
6 Rb3 draw
7 Rb5 draw
8 Rb7 draw
9 Rb8 draw
10 Kb3 loss in 2 half-moves
11 Kc3 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kf1 loss in 2 half-moves
15 Kf2 loss in 2 half-moves
16 Kg2 loss in 2 half-moves
17 Kh1 loss in 2 half-moves
18 Kh2 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Kb5 loss in 1 half-moves