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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Ka2 draw
3 Kb1 draw
4 Kc4 draw
5 Kd4 draw
6 Ke4 draw
7 Ra5 draw
8 Rb5 draw
9 Rc4 draw
10 Kc6 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ke5 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc2 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rc8 loss in 2 half-moves