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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Rb3 draw
3 Rb5 draw
4 Rb6 draw
5 Rb7 draw
6 Rd8 draw
7 Kc6 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Kde7 loss in 2 half-moves
13 Kde8 loss in 2 half-moves
14 Ke6 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kfe7 loss in 2 half-moves
17 Kfe8 loss in 2 half-moves
18 Kg7 loss in 2 half-moves
19 Kg8 loss in 2 half-moves
20 Ra8 loss in 2 half-moves
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rb4 loss in 2 half-moves
24 Rc8 loss in 2 half-moves