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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Rh7 win in 1 half-moves
3 Kb6 draw
4 Ke7 draw
5 Ke8 draw
6 Kf7 draw
7 Kg8 draw
8 Ra8 draw
9 Rb7 draw
10 Kb7 loss in 2 half-moves
11 Kg7 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Ka5 loss in 1 half-moves