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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kc4 draw
3 Kc5 draw
4 Kc6 draw
5 Rb7 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Rg1 draw
11 Rg2 draw
12 Rg3 draw
13 Ka2 loss in 2 half-moves
14 Ka4 loss in 2 half-moves
15 Ka5 loss in 2 half-moves
16 Ka6 loss in 2 half-moves
17 Kb1 loss in 2 half-moves
18 Kb2 loss in 2 half-moves
19 Kb4 loss in 2 half-moves
20 Kb6 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rg5 loss in 2 half-moves
23 Rg6 loss in 2 half-moves
24 Rg8 loss in 2 half-moves
25 Rh7 loss in 2 half-moves