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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Ra6 draw
3 Rb1 draw
4 Rb2 draw
5 K6b7 loss in 2 half-moves
6 K6c7 loss in 2 half-moves
7 K6d7 loss in 2 half-moves
8 K8b7 loss in 2 half-moves
9 K8c7 loss in 2 half-moves
10 K8d7 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves