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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb5 win in 3 half-moves
3 Kc6 win in 7 half-moves
4 Ka4 draw
5 Ka7 draw
6 Ka8 draw
7 Kaa6 draw
8 Kab6 draw
9 Kb4 draw
10 Kb5 draw
11 Kb8 draw
12 Kba6 draw
13 Kbb6 draw
14 Kc7 draw
15 Kc8 draw
16 Ra2 draw
17 Rb1 draw
18 Rb3 draw
19 Rb6 draw
20 Rc2 draw
21 Rd2 draw
22 Rh2 draw
23 Re2 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rg2 loss in 2 half-moves