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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Rc6 win in 5 half-moves
3 Kb6 win in 7 half-moves
4 Ka4 draw
5 Ka6 draw
6 Kab4 draw
7 Kab5 draw
8 Kc3 draw
9 Rc7 draw
10 Rc8 draw
11 Kcb4 loss in 2 half-moves
12 Kcb5 loss in 2 half-moves
13 Kd3 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Re5 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rg5 loss in 2 half-moves
21 Rh5 loss in 2 half-moves