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 Kb2 draw
4 Kb3 draw
5 Kb7 draw
6 Kb8 draw
7 Kc2 draw
8 Kd2 draw
9 Kd3 draw
10 Kd4 draw
11 Ra4 draw
12 Rb4 draw
13 Rc4 draw
14 Rd4 draw
15 Re5 draw
16 Re6 draw
17 Re7 draw
18 Re8 draw
19 Rf4 draw
20 Kc4 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Re2 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh4 loss in 2 half-moves