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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kd1 draw
6 Ke1 draw
7 Ke3 draw
8 Ra2 draw
9 Rb2 draw
10 Rc1 draw
11 Rc3 draw
12 Rc4 draw
13 Kb7 loss in 2 half-moves
14 Kc1 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Ke2 loss in 1 half-moves