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 Kc5 draw
3 Kd5 draw
4 Ra3 draw
5 Ra4 draw
6 Ra8 draw
7 Rf5 draw
8 Rg5 draw
9 Rh5 draw
10 K3b3 loss in 2 half-moves
11 K3b4 loss in 2 half-moves
12 K3d3 loss in 2 half-moves
13 K3d4 loss in 2 half-moves
14 K4b3 loss in 2 half-moves
15 K4b4 loss in 2 half-moves
16 K4d3 loss in 2 half-moves
17 K4d4 loss in 2 half-moves
18 Kb2 loss in 2 half-moves
19 Kc2 loss in 2 half-moves
20 Kd2 loss in 2 half-moves
21 Ra1 loss in 2 half-moves
22 Ra2 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rc5 loss in 2 half-moves
27 Rd5 loss in 2 half-moves
28 Re5 loss in 2 half-moves