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

EGTB: win in 6 half-moves

# move score
1 Kb2 win in 5 half-moves
2 Ka2 draw
3 Kb1 draw
4 Kc6 draw
5 Kd6 draw
6 Rd1 draw
7 Rd2 draw
8 Rd3 draw
9 Rf4 draw
10 Kc4 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Ke5 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves