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 Ka7 draw
3 Ka8 draw
4 Kb4 draw
5 Kb5 draw
6 Kb7 draw
7 Kc3 draw
8 Kc5 draw
9 Kc7 draw
10 Kc8 draw
11 Ra1 draw
12 Rc1 draw
13 Rd1 draw
14 Re2 draw
15 Re6 draw
16 Re7 draw
17 Re8 draw
18 Kb3 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Kd4 loss in 2 half-moves
21 Kd5 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