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

EGTB: win in 4 half-moves

# move score
1 Rg5 win in 3 half-moves
2 Rg6 win in 3 half-moves
3 Rg7 win in 3 half-moves
4 Ka3 draw
5 Ka4 draw
6 Ka7 draw
7 Kaa5 draw
8 Kab5 draw
9 Kb3 draw
10 Kb6 draw
11 Kb7 draw
12 Kba5 draw
13 Kbb5 draw
14 Ra1 draw
15 Rb1 draw
16 Rg8 draw
17 Rh1 draw
18 Kc3 loss in 2 half-moves
19 Kc4 loss in 2 half-moves
20 Kc5 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rg2 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rg4 loss in 2 half-moves