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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Kb1 draw
6 Kb3 draw
7 Kc1 draw
8 Kc2 draw
9 Kc3 draw
10 Ra8 draw
11 Rb4 draw
12 Rb6 draw
13 Rc8 draw
14 Rd8 draw
15 Re8 draw
16 Rb3 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 2 half-moves
20 Rf8 loss in 1 half-moves