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

EGTB: win in 4 half-moves

# move score
1 K7b7 win in 3 half-moves
2 K7b8 win in 3 half-moves
3 K8b7 win in 3 half-moves
4 K8b8 win in 3 half-moves
5 Kb6 win in 3 half-moves
6 Rb7 win in 3 half-moves
7 Rc8 win in 5 half-moves
8 Ka6 draw
9 Rc1 draw
10 Rc2 draw
11 Rc3 draw
12 Rd7 draw
13 Rh7 draw
14 Rc4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves