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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Rb7 win in 1 half-moves
3 K2b2 draw
4 K2d2 draw
5 K3b2 draw
6 K3d2 draw
7 K3d3 draw
8 Kb1 draw
9 Kb4 draw
10 Kc1 draw
11 Kc4 draw
12 Kd1 draw
13 Kd4 draw
14 Rb6 draw
15 Rb8 draw
16 K2d3 loss in 1 half-moves
17 Rb1 loss in 1 half-moves
18 Rb2 loss in 1 half-moves
19 Rb4 loss in 1 half-moves
20 Rb5 loss in 1 half-moves