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

EGTB: win in 4 half-moves

# move score
1 Rd5 win in 3 half-moves
2 Ka3 draw
3 Ka4 draw
4 Ka5 draw
5 Kb3 draw
6 Kb6 draw
7 Kbb5 draw
8 Kbc4 draw
9 Kc3 draw
10 Kc6 draw
11 Kcb5 draw
12 Kcc4 draw
13 Kd4 draw
14 Kd5 draw
15 Kd6 draw
16 Re5 draw
17 Rf1 draw
18 Rf6 draw
19 Rf7 draw
20 Rf8 draw
21 Rf2 loss in 2 half-moves
22 Rf3 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg5 loss in 2 half-moves
25 Rh5 loss in 2 half-moves