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