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 Rb7 draw
6 Kb1 loss in 2 half-moves
7 Kb3 loss in 2 half-moves
8 Kc3 loss in 2 half-moves
9 Kcc1 loss in 2 half-moves
10 Kcd2 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kdc1 loss in 2 half-moves
13 Kdd2 loss in 2 half-moves
14 Ke1 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb8 loss in 2 half-moves