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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rc4 win in 3 half-moves
3 Ka1 draw
4 Ka3 draw
5 Kab1 draw
6 Kab2 draw
7 Kab3 draw
8 Kc1 draw
9 Kc3 draw
10 Kcb1 draw
11 Kcb2 draw
12 Kcb3 draw
13 Kd1 draw
14 Kd2 draw
15 Kd3 draw
16 Rb4 draw
17 Rd4 draw
18 Rh1 draw
19 Rh2 draw
20 Rh3 draw
21 Rh8 draw
22 Re4 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh5 loss in 2 half-moves
26 Rh6 loss in 2 half-moves
27 Rh7 loss in 2 half-moves