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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kb3 win in 5 half-moves
3 Ka3 win in 7 half-moves
4 Rg3 win in 7 half-moves
5 Ka6 draw
6 Ka7 draw
7 Kaa5 draw
8 Kab5 draw
9 Kb4 draw
10 Kb7 draw
11 Kba5 draw
12 Kbb5 draw
13 Ra2 draw
14 Rb2 draw
15 Rg1 draw
16 Rg8 draw
17 Rh2 draw
18 Kc5 loss in 2 half-moves
19 Kc6 loss in 2 half-moves
20 Kc7 loss in 2 half-moves
21 Rc2 loss in 2 half-moves
22 Rd2 loss in 2 half-moves
23 Re2 loss in 2 half-moves
24 Rf2 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