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

EGTB: win in 6 half-moves

# move score
1 Ra4 win in 5 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Kbc1 draw
6 Kbc2 draw
7 Kd1 draw
8 Kdc1 draw
9 Kdc2 draw
10 Ke1 draw
11 Ke2 draw
12 Rb4 draw
13 Rf1 draw
14 Rf2 draw
15 Rf3 draw
16 Rf8 draw
17 Rg4 draw
18 Rh4 draw
19 Kc3 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Ke3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rd4 loss in 2 half-moves
24 Re4 loss in 2 half-moves
25 Rf5 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rf7 loss in 2 half-moves