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 Ka3 draw
3 Kb3 draw
4 Kc3 draw
5 Ra6 draw
6 Rb7 draw
7 Rb8 draw
8 Re6 draw
9 Rf6 draw
10 Rg6 draw
11 Ka1 loss in 2 half-moves
12 Ka2 loss in 2 half-moves
13 Kb1 loss in 2 half-moves
14 Kc1 loss in 2 half-moves
15 Kc2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Rh6 loss in 2 half-moves