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 Kc8 draw
3 Ra4 draw
4 Rc4 draw
5 Rd4 draw
6 Re4 draw
7 Rh1 draw
8 Rh7 draw
9 Rh8 draw
10 Ka7 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh2 loss in 2 half-moves
17 Rh3 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh6 loss in 2 half-moves