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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Ka3 draw
3 Ka5 draw
4 Ka6 draw
5 Ka7 draw
6 Ka8 draw
7 Kb4 draw
8 Kb5 draw
9 Kb6 draw
10 Kb8 draw
11 Kc6 draw
12 Kc7 draw
13 Kc8 draw
14 Ra1 draw
15 Rc1 draw
16 Rd1 draw
17 Re2 draw
18 Re6 draw
19 Re7 draw
20 Re8 draw
21 Kb3 loss in 2 half-moves
22 Re3 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Re5 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves