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 Ra2 draw
3 Rb5 draw
4 Rb6 draw
5 Ka1 loss in 2 half-moves
6 Ka2 loss in 2 half-moves
7 Kbc1 loss in 2 half-moves
8 Kbc2 loss in 2 half-moves
9 Kc3 loss in 2 half-moves
10 Kd1 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kdc1 loss in 2 half-moves
13 Kdc2 loss in 2 half-moves
14 Ke1 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc2 loss in 2 half-moves