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 Kc1 draw
3 Kc2 draw
4 Kc3 draw
5 Ra7 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf4 draw
10 Rf5 draw
11 Rf6 draw
12 Rf8 draw
13 Ka1 loss in 2 half-moves
14 Ka2 loss in 2 half-moves
15 Ka3 loss in 2 half-moves
16 Ka4 loss in 2 half-moves
17 Ka6 loss in 2 half-moves
18 Kb1 loss in 2 half-moves
19 Kb3 loss in 2 half-moves
20 Kb4 loss in 2 half-moves
21 Kb5 loss in 2 half-moves
22 Kb6 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rf2 loss in 2 half-moves
25 Rf3 loss in 2 half-moves
26 Rg7 loss in 2 half-moves
27 Rh7 loss in 2 half-moves