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

EGTB: win in 10 half-moves

# move score
1 Rb1 win in 9 half-moves
2 K1b1 draw
3 K1d1 draw
4 K1d2 draw
5 K2d1 draw
6 K2d2 draw
7 Ra2 draw
8 K2b1 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Kc3 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves