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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Re7 win in 5 half-moves
4 Re8 win in 7 half-moves
5 Ka4 draw
6 Ka5 draw
7 Ka6 draw
8 Ka7 draw
9 Kb4 draw
10 Kb6 draw
11 Kb7 draw
12 Kb8 draw
13 Rc3 draw
14 Rd3 draw
15 Re1 draw
16 Re2 draw
17 Kc4 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Re5 loss in 2 half-moves
22 Re6 loss in 2 half-moves
23 Rf3 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves