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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb2 draw
5 Kb3 draw
6 Kb7 draw
7 Kc2 draw
8 Kc4 draw
9 Kc7 draw
10 Kd2 draw
11 Kd3 draw
12 Rd8 draw
13 Rh8 draw
14 Kd4 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves