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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Kb1 win in 7 half-moves
3 Kb2 win in 7 half-moves
4 Kb5 win in 7 half-moves
5 Kb6 win in 7 half-moves
6 Kc5 win in 7 half-moves
7 Kd2 win in 7 half-moves
8 Kd5 win in 7 half-moves
9 Kd6 win in 7 half-moves
10 Ra1 win in 7 half-moves
11 Kb3 draw
12 Kb7 draw
13 Kc3 draw
14 Kc7 draw
15 Kd1 draw
16 Kd3 draw
17 Rd1 draw
18 Re1 draw
19 Kd7 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves