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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kd7 draw
3 Kd8 draw
4 Rd7 draw
5 Rf1 draw
6 Rf2 draw
7 Rf3 draw
8 Ka3 loss in 2 half-moves
9 Ka4 loss in 2 half-moves
10 Ka5 loss in 2 half-moves
11 Kb3 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Kf8 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rf6 loss in 2 half-moves
24 Rf8 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh7 loss in 2 half-moves