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 Ka7 draw
3 Kab7 draw
4 Kab8 draw
5 Kc7 draw
6 Kcb7 draw
7 Kcb8 draw
8 Kd7 draw
9 Kd8 draw
10 Ra4 draw
11 Ra5 draw
12 Ra6 draw
13 Rh3 draw
14 Ra1 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Rb3 loss in 2 half-moves
17 Rc3 loss in 2 half-moves
18 Rd3 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Rf3 loss in 2 half-moves
21 Rg3 loss in 2 half-moves