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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Rd7 win in 3 half-moves
3 Ka4 draw
4 Ka5 draw
5 Ka6 draw
6 Kb2 draw
7 Kb3 draw
8 Kb6 draw
9 Kbb4 draw
10 Kbc4 draw
11 Kc2 draw
12 Kc5 draw
13 Kc6 draw
14 Kcb4 draw
15 Kcc4 draw
16 Rb7 draw
17 Rc7 draw
18 Re7 draw
19 Rf1 draw
20 Rf5 draw
21 Rf6 draw
22 Rf8 draw
23 Kd2 loss in 2 half-moves
24 Kd3 loss in 2 half-moves
25 Kd4 loss in 2 half-moves
26 Rf2 loss in 2 half-moves
27 Rf3 loss in 2 half-moves
28 Rf4 loss in 2 half-moves
29 Rg7 loss in 2 half-moves
30 Rh7 loss in 2 half-moves