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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Rb7 draw
4 K5b6 loss in 2 half-moves
5 K5d5 loss in 2 half-moves
6 K5d6 loss in 2 half-moves
7 K6b6 loss in 2 half-moves
8 K6d5 loss in 2 half-moves
9 K6d6 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kc7 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Ra5 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Kb7 loss in 1 half-moves