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

EGTB: win in 4 half-moves

# move score
1 Ka3 win in 3 half-moves
2 Rc6 win in 3 half-moves
3 Ka5 draw
4 Kb6 draw
5 Kc6 draw
6 Kcb5 draw
7 Kd5 draw
8 Kd6 draw
9 Ra5 draw
10 Ra7 draw
11 Ra8 draw
12 Kab4 loss in 2 half-moves
13 Kab5 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kcb4 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rf6 loss in 2 half-moves
22 Rg6 loss in 2 half-moves
23 Rh6 loss in 2 half-moves