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

EGTB: win in 2 half-moves

# move score
1 Ra8 win in 1 half-moves
2 K1a2 draw
3 K1b2 draw
4 K3a2 draw
5 K3b2 draw
6 Ka4 draw
7 Kb1 draw
8 Kb3 draw
9 Kb4 draw
10 Rb7 draw
11 Rc7 draw
12 Rd7 draw
13 Re7 draw
14 Rf7 draw
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Ra6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves