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 K5b6 draw
3 K5d5 draw
4 K5d6 draw
5 K6b6 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 Ra5 draw
15 Rb1 draw
16 Rb6 draw
17 Rb7 draw
18 Rb8 draw
19 Rb2 loss in 1 half-moves
20 Rb4 loss in 1 half-moves