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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kb2 win in 3 half-moves
3 Kc2 draw
4 Kcd2 draw
5 Ked2 draw
6 Kf1 draw
7 Rd2 draw
8 Rd7 draw
9 Ke2 loss in 2 half-moves
10 Kf2 loss in 2 half-moves
11 Rd3 loss in 2 half-moves
12 Rd4 loss in 2 half-moves
13 Rd5 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rd8 loss in 2 half-moves