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