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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Rb1 win in 11 half-moves
3 Ka1 draw
4 Ka3 draw
5 Kb1 draw
6 Kb2 draw
7 Kb3 draw
8 Kd1 draw
9 Kd2 draw
10 Ke2 draw
11 Kf1 draw
12 Kf2 draw
13 Ra4 draw
14 Rb3 draw
15 Rb5 draw
16 Rb6 draw
17 Rh4 draw
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rf4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves