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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 K5b5 loss in 2 half-moves
3 K5d5 loss in 2 half-moves
4 K5d6 loss in 2 half-moves
5 K6b5 loss in 2 half-moves
6 K6d5 loss in 2 half-moves
7 K6d6 loss in 2 half-moves
8 Kb4 loss in 2 half-moves
9 Kb7 loss in 2 half-moves
10 Kc4 loss in 2 half-moves
11 Kc7 loss in 2 half-moves
12 Kd4 loss in 2 half-moves
13 Kd7 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb7 loss in 2 half-moves