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 Ka2 draw
3 Ka5 draw
4 Ka6 draw
5 Ka7 draw
6 Kb1 draw
7 Kb2 draw
8 Kb7 draw
9 Kc5 draw
10 Kc6 draw
11 Kc7 draw
12 Ra7 draw
13 Rc7 draw
14 Rd7 draw
15 Re4 draw
16 Re5 draw
17 Re6 draw
18 Re8 draw
19 Kb5 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg7 loss in 2 half-moves
25 Rh7 loss in 2 half-moves