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 Rb3 draw
3 Rb4 draw
4 Rb5 draw
5 Rb6 draw
6 Re2 draw
7 Rg2 draw
8 Rh2 draw
9 Kaa7 loss in 2 half-moves
10 Kab7 loss in 2 half-moves
11 Kba7 loss in 2 half-moves
12 Kbb7 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rd2 loss in 2 half-moves
19 Rf2 loss in 2 half-moves