Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ra3 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 K1b2 loss in 2 half-moves
7 K1c2 loss in 2 half-moves
8 K1d2 loss in 2 half-moves
9 K3b2 loss in 2 half-moves
10 K3c2 loss in 2 half-moves
11 K3d2 loss in 2 half-moves
12 Kb1 loss in 2 half-moves
13 Kb4 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kd1 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb4 loss in 2 half-moves