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 Kb6 win in 11 half-moves
3 K6b7 draw
4 Kb5 draw
5 Kc5 draw
6 Ra8 draw
7 Rb6 draw
8 K6c7 loss in 2 half-moves
9 K6d7 loss in 2 half-moves
10 K8b7 loss in 2 half-moves
11 K8c7 loss in 2 half-moves
12 K8d7 loss in 2 half-moves
13 Kd5 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb7 loss in 2 half-moves