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 Rb1 draw
3 Rb2 draw
4 Rb6 draw
5 Rb7 draw
6 Rb8 draw
7 Rc5 draw
8 Rd5 draw
9 Re5 draw
10 Rg5 draw
11 Kf7 loss in 2 half-moves
12 Kf8 loss in 2 half-moves
13 Kgh7 loss in 2 half-moves
14 Kgg7 loss in 1 half-moves
15 Khg7 loss in 1 half-moves
16 Khh7 loss in 1 half-moves
17 Ra5 loss in 1 half-moves
18 Rb3 loss in 1 half-moves
19 Rf5 loss in 1 half-moves
20 Rh5 loss in 1 half-moves