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 Kb7 draw
6 Kd1 draw
7 Kd3 draw
8 Ke1 draw
9 Ke2 draw
10 Ke3 draw
11 Rd4 draw
12 Re2 draw
13 Re3 draw
14 Re5 draw
15 Re6 draw
16 Re7 draw
17 Re8 draw
18 Rf4 draw
19 Rg4 draw
20 Rh4 draw
21 Kc1 loss in 2 half-moves
22 Kc2 loss in 2 half-moves
23 Kc3 loss in 2 half-moves
24 Ra4 loss in 2 half-moves
25 Rb4 loss in 2 half-moves
26 Rc4 loss in 2 half-moves
27 Re1 loss in 2 half-moves