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 Kc2 draw
5 Ra7 draw
6 Rc7 draw
7 Kc1 loss in 8 half-moves
8 Ka1 loss in 6 half-moves
9 Ka2 loss in 6 half-moves
10 Kb1 loss in 4 half-moves
11 Rb8 loss in 4 half-moves
12 Rd7 loss in 4 half-moves
13 Rh7 loss in 4 half-moves
14 Kc3 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves