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