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 Kd2 draw
5 Ke1 draw
6 Ke2 draw
7 Ra2 draw
8 Ra6 draw
9 Ra8 draw
10 Raa7 draw
11 Rb1 draw
12 Rc1 draw
13 Rc7 draw
14 Rd7 draw
15 Re1 draw
16 Re2 draw
17 Re6 draw
18 Re8 draw
19 Rea7 draw
20 Rf7 draw
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Re3 loss in 2 half-moves
25 Re4 loss in 2 half-moves
26 Re5 loss in 2 half-moves
27 Rg7 loss in 2 half-moves
28 Rh7 loss in 2 half-moves