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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Rd4 draw
3 Rd5 draw
4 Rd6 draw
5 Re1 draw
6 Rf1 draw
7 Rg1 draw
8 Rh1 draw
9 Kc7 loss in 2 half-moves
10 Kc8 loss in 2 half-moves
11 Kdd7 loss in 2 half-moves
12 Kde7 loss in 2 half-moves
13 Ked7 loss in 2 half-moves
14 Kee7 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kf8 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Rd2 loss in 2 half-moves
21 Rd3 loss in 2 half-moves