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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 5 half-moves
3 Rb1 win in 15 half-moves
4 Ka5 win in 19 half-moves
5 Ra1 win in 19 half-moves
6 Rc2 win in 19 half-moves
7 Rc3 win in 23 half-moves
8 Rc5 win in 23 half-moves
9 Ke1 win in 27 half-moves
10 Ka7 draw
11 Kb7 draw
12 Kd1 draw
13 Kd2 draw
14 Kd3 draw
15 Ke3 draw
16 Kf1 draw
17 Kf2 draw
18 Kf3 draw
19 Rc4 draw
20 Rd1 draw
21 Re1 draw
22 Rf1 draw
23 Rc6 loss in 2 half-moves
24 Rc7 loss in 2 half-moves
25 Rc8 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves