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 Kb3 loss in 2 half-moves
3 Kc3 loss in 2 half-moves
4 Kc7 loss in 2 half-moves
5 Kd3 loss in 2 half-moves
6 Kd4 loss in 2 half-moves
7 Kd6 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ra4 loss in 2 half-moves
10 Rb1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 K4b5 loss in 1 half-moves
14 K4c5 loss in 1 half-moves
15 K4d5 loss in 1 half-moves
16 K6b5 loss in 1 half-moves
17 K6c5 loss in 1 half-moves
18 K6d5 loss in 1 half-moves
19 Kb6 loss in 1 half-moves
20 Kb7 loss in 1 half-moves
21 Rb5 loss in 1 half-moves
22 Rb6 loss in 1 half-moves
23 Rb7 loss in 1 half-moves