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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rh4 win in 5 half-moves
4 Kf7 draw
5 Kf8 draw
6 Kgg7 draw
7 Kgh7 draw
8 Khg7 draw
9 Khh7 draw
10 Ra4 draw
11 Rb5 draw
12 Rb6 draw
13 Rc4 draw
14 Rg4 draw
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf4 loss in 2 half-moves