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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Rb4 draw
3 Rb7 draw
4 Rb8 draw
5 Kc1 loss in 2 half-moves
6 Kc2 loss in 2 half-moves
7 Kd3 loss in 2 half-moves
8 Kdd2 loss in 2 half-moves
9 Kde1 loss in 2 half-moves
10 Ke3 loss in 2 half-moves
11 Ked2 loss in 2 half-moves
12 Kee1 loss in 2 half-moves
13 Kf1 loss in 2 half-moves
14 Kf2 loss in 2 half-moves
15 Kf3 loss in 2 half-moves
16 Ra1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves