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

EGTB: win in 4 half-moves

# move score
1 K8b7 win in 3 half-moves
2 K6b7 draw
3 Kb6 draw
4 Rb2 draw
5 Rb3 draw
6 Rb4 draw
7 K6c7 loss in 2 half-moves
8 K6d7 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 Kc5 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 Ra8 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves