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

EGTB: win in 4 half-moves

# move score
1 Rc4 win in 3 half-moves
2 Rc1 draw
3 Rc2 draw
4 Rc3 draw
5 Rc5 draw
6 Rc8 draw
7 Ka4 loss in 2 half-moves
8 Ka5 loss in 2 half-moves
9 Ka6 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kbc6 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kdc6 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rc6 loss in 2 half-moves
22 Kc8 loss in 1 half-moves
23 Kd8 loss in 1 half-moves
24 Ke8 loss in 1 half-moves