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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Ra1 draw
3 Ra2 draw
4 Ra4 draw
5 Ra5 draw
6 Ra6 draw
7 Re7 draw
8 Rf7 draw
9 Rg7 draw
10 Rh7 draw
11 Kb3 loss in 2 half-moves
12 Kb4 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc5 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Kd5 loss in 2 half-moves
19 Kg1 loss in 2 half-moves
20 Kg2 loss in 2 half-moves
21 Kg3 loss in 2 half-moves
22 Kh1 loss in 2 half-moves
23 Kh3 loss in 2 half-moves
24 Ra8 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc7 loss in 2 half-moves
27 Rd7 loss in 2 half-moves