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 Kaa7 draw
3 Kab7 draw
4 Kba7 draw
5 Kbb7 draw
6 Kc7 draw
7 Kc8 draw
8 Ra3 draw
9 Rb4 draw
10 Rb5 draw
11 Rb6 draw
12 Rc3 draw
13 Rd3 draw
14 Rh3 draw
15 Rb1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf3 loss in 2 half-moves
19 Rg3 loss in 2 half-moves