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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Rb1 win in 3 half-moves
3 Kb1 win in 5 half-moves
4 Kd1 win in 5 half-moves
5 Ka2 draw
6 Ka4 draw
7 Kab2 draw
8 Kb4 draw
9 Kc2 loss in 2 half-moves
10 Kcb2 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Ra2 loss in 2 half-moves