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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Rb5 win in 3 half-moves
3 Rb6 win in 3 half-moves
4 Ka6 win in 5 half-moves
5 Rb7 win in 5 half-moves
6 Kb6 win in 9 half-moves
7 Ra4 win in 9 half-moves
8 Ka4 draw
9 Kab5 draw
10 Kb3 draw
11 Kc3 draw
12 Kc5 draw
13 Kcb5 draw
14 Kd5 draw
15 Kd3 loss in 2 half-moves
16 Kd4 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves