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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Ra3 win in 5 half-moves
3 Rb3 win in 5 half-moves
4 Rg7 win in 5 half-moves
5 Rg8 win in 5 half-moves
6 Ka4 draw
7 Ka7 draw
8 Ka8 draw
9 Kaa6 draw
10 Kab6 draw
11 Kb5 draw
12 Kb8 draw
13 Kba6 draw
14 Kbb6 draw
15 Kc8 draw
16 Rc3 draw
17 Rg1 draw
18 Rg2 draw
19 Rh3 draw
20 Kc6 loss in 2 half-moves
21 Kc7 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Re3 loss in 2 half-moves
24 Rf3 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rg5 loss in 2 half-moves
27 Rg6 loss in 2 half-moves