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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Kb5 win in 1 half-moves
3 Kb6 win in 1 half-moves
4 Rb3 win in 1 half-moves
5 Rc1 win in 1 half-moves
6 Ka4 win in 3 half-moves
7 Kc2 win in 3 half-moves
8 Kc4 win in 3 half-moves
9 Kd4 win in 3 half-moves
10 Ra3 win in 3 half-moves
11 Rc2 win in 3 half-moves
12 Rc4 win in 3 half-moves
13 Rc5 win in 3 half-moves
14 Ka6 win in 5 half-moves
15 Ke3 win in 5 half-moves
16 Kd2 win in 7 half-moves
17 Ke2 win in 7 half-moves
18 Ke4 win in 7 half-moves
19 Rc6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rc8 loss in 2 half-moves