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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kab5 win in 7 half-moves
3 Ra8 win in 9 half-moves
4 Kaa6 draw
5 Kb7 draw
6 Kbb5 draw
7 Kc6 draw
8 Kc7 draw
9 Ka4 loss in 2 half-moves
10 Ka7 loss in 2 half-moves
11 Kb4 loss in 2 half-moves
12 Kba6 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves