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 Ka5 draw
3 Kb5 draw
4 Kb6 draw
5 Kb7 draw
6 Ra8 draw
7 Rb1 draw
8 Rb2 draw
9 Re8 draw
10 Rf8 draw
11 Rg8 draw
12 Ka7 loss in 2 half-moves
13 Rb3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves