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