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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Rb1 win in 3 half-moves
5 Rc1 win in 3 half-moves
6 Re1 win in 3 half-moves
7 Ka2 win in 7 half-moves
8 Kb1 win in 7 half-moves
9 Kb2 win in 7 half-moves
10 Kd3 win in 7 half-moves
11 Rf1 win in 7 half-moves
12 Ke1 draw
13 Ke2 draw
14 Ke3 draw
15 Rg1 loss in 2 half-moves
16 Rh1 loss in 2 half-moves