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 Rd7 draw
7 Rf7 draw
8 Rg7 draw
9 Rh7 draw
10 Kg1 loss in 2 half-moves
11 Kg2 loss in 2 half-moves
12 Kg4 loss in 2 half-moves
13 Kg5 loss in 2 half-moves
14 Kg6 loss in 2 half-moves
15 Kh2 loss in 2 half-moves
16 Kh4 loss in 2 half-moves
17 Kh6 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb8 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Re7 loss in 2 half-moves