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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ra4 draw
3 Rb1 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Re4 draw
8 Rf4 draw
9 Rg4 draw
10 Rh4 draw
11 Kb1 loss in 2 half-moves
12 Kb2 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Kc1 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kd1 loss in 2 half-moves
17 Kd2 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rd4 loss in 2 half-moves