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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Ka1 draw
4 Ka2 draw
5 Ka3 draw
6 Kb1 draw
7 Kb3 draw
8 Kc1 draw
9 Kc2 draw
10 Kc3 draw
11 Ra7 draw
12 Rb3 draw
13 Rb5 draw
14 Rb6 draw
15 Rd7 draw
16 Re7 draw
17 Rf7 draw
18 Rg7 draw
19 Rc7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves