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 Rf8 draw
3 Ka1 loss in 2 half-moves
4 Ka2 loss in 2 half-moves
5 Kb3 loss in 2 half-moves
6 Kbb2 loss in 2 half-moves
7 Kbc1 loss in 2 half-moves
8 Kc3 loss in 2 half-moves
9 Kcb2 loss in 2 half-moves
10 Kcc1 loss in 2 half-moves
11 Kd1 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Ra8 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rb4 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves
22 Re8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves