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

EGTB: win in 8 half-moves

# move score
1 Ka2 win in 7 half-moves
2 Ka3 win in 7 half-moves
3 Ka4 win in 7 half-moves
4 Kb2 win in 7 half-moves
5 Kb4 draw
6 Kbc2 draw
7 Kbc4 draw
8 Ke3 draw
9 Rc8 draw
10 Kd2 loss in 2 half-moves
11 Kd4 loss in 2 half-moves
12 Kdc2 loss in 2 half-moves
13 Kdc4 loss in 2 half-moves
14 Ke2 loss in 2 half-moves
15 Ke4 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves