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 Kb5 draw
4 Kb7 draw
5 Rb6 draw
6 Rb7 draw
7 Rb3 loss in 18 half-moves
8 Rb5 loss in 18 half-moves
9 Ka5 loss in 16 half-moves
10 Kb6 loss in 4 half-moves
11 Ra8 loss in 4 half-moves
12 Rf8 loss in 4 half-moves
13 Rb1 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves
19 Rg8 loss in 1 half-moves