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

EGTB: win in 4 half-moves

# move score
1 Re2 win in 3 half-moves
2 Kd1 draw
3 Kd2 draw
4 Kee2 draw
5 Kef2 draw
6 Kfe2 draw
7 Kff2 draw
8 Kg1 draw
9 Kg2 draw
10 Ra7 draw
11 Re3 draw
12 Re8 draw
13 Rf7 draw
14 Rg7 draw
15 Rh7 draw
16 Rb7 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Re6 loss in 2 half-moves