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

EGTB: win in 4 half-moves

# move score
1 Rd3 win in 3 half-moves
2 Kd2 draw
3 Kd3 draw
4 Kd4 draw
5 Ke1 draw
6 Ke4 draw
7 Kee2 draw
8 Kef2 draw
9 Kf3 draw
10 Kf4 draw
11 Kfe2 draw
12 Kff2 draw
13 Kg1 draw
14 Kg2 draw
15 Rc1 draw
16 Rc2 draw
17 Rc4 draw
18 Rc8 draw
19 Ra3 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rc5 loss in 2 half-moves
22 Rc6 loss in 2 half-moves
23 Rc7 loss in 2 half-moves