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