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 5 half-moves
3 Rb4 draw
4 Rb5 draw
5 Rb6 draw
6 Rc2 draw
7 Rd2 draw
8 Re2 draw
9 Rh2 draw
10 Ka6 loss in 2 half-moves
11 Ka8 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kb7 loss in 2 half-moves
14 Kb8 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kc4 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Ke5 loss in 2 half-moves
23 Ra2 loss in 2 half-moves
24 Rb1 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rf2 loss in 2 half-moves
27 Rg2 loss in 2 half-moves