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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 draw
3 Rc7 draw
4 Rd7 draw
5 Re7 draw
6 Rg7 draw
7 Ka3 loss in 2 half-moves
8 Ka4 loss in 2 half-moves
9 Ka5 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kbc3 loss in 2 half-moves
13 Kbc4 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kdc3 loss in 2 half-moves
19 Kdc4 loss in 2 half-moves
20 Ke2 loss in 2 half-moves
21 Ke3 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Ra7 loss in 2 half-moves
24 Rb8 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rh7 loss in 2 half-moves