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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rc6 win in 3 half-moves
4 Re1 win in 5 half-moves
5 Re2 win in 5 half-moves
6 Ka1 draw
7 Ka2 draw
8 Ka3 draw
9 Ka4 draw
10 Ka5 draw
11 Kb2 draw
12 Kb3 draw
13 Kb5 draw
14 Kc1 draw
15 Rd6 draw
16 Re7 draw
17 Re8 draw
18 Kc2 loss in 2 half-moves
19 Kc3 loss in 2 half-moves
20 Kc4 loss in 2 half-moves
21 Kc5 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 Rf6 loss in 2 half-moves
26 Rg6 loss in 2 half-moves
27 Rh6 loss in 2 half-moves