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

EGTB: win in 4 half-moves

# move score
1 Rd4 win in 3 half-moves
2 Rb1 draw
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Rc4 draw
7 K4d5 loss in 2 half-moves
8 K4e5 loss in 2 half-moves
9 K4f5 loss in 2 half-moves
10 K6d5 loss in 2 half-moves
11 K6e5 loss in 2 half-moves
12 K6f5 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd7 loss in 2 half-moves
17 Ke3 loss in 2 half-moves
18 Ke7 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Kf4 loss in 2 half-moves
21 Kf6 loss in 2 half-moves
22 Kf7 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rb5 loss in 2 half-moves