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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb1 draw
3 Rb3 draw
4 Rb4 draw
5 Rb5 draw
6 Rb6 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Rh7 draw
11 Kd1 loss in 2 half-moves
12 Kd2 loss in 2 half-moves
13 Kee2 loss in 2 half-moves
14 Kef2 loss in 2 half-moves
15 Kfe2 loss in 2 half-moves
16 Kff2 loss in 2 half-moves
17 Kg1 loss in 2 half-moves
18 Kg2 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rg7 loss in 2 half-moves