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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 K5b5 draw
3 K5d5 draw
4 K5d6 draw
5 K6b5 draw
6 K6d5 draw
7 K6d6 draw
8 Kb7 draw
9 Kc7 draw
10 Kd7 draw
11 Ra6 draw
12 Rb1 draw
13 Rb2 draw
14 Rb3 draw
15 Rb4 draw
16 Rb5 draw
17 Kb4 loss in 1 half-moves
18 Kc4 loss in 1 half-moves
19 Kd4 loss in 1 half-moves
20 Rb8 loss in 1 half-moves