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