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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb4 draw
3 Rb5 draw
4 Rb6 draw
5 Rb8 draw
6 Re3 draw
7 Rf3 draw
8 Rg3 draw
9 Rh3 draw
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kdd7 loss in 2 half-moves
13 Kde7 loss in 2 half-moves
14 Ked7 loss in 2 half-moves
15 Kee7 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Kf8 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rb2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rd3 loss in 2 half-moves