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

EGTB: win in 4 half-moves

# move score
1 Ka2 win in 3 half-moves
2 Rb3 win in 3 half-moves
3 Rf5 win in 3 half-moves
4 Rf6 win in 3 half-moves
5 Rf7 win in 3 half-moves
6 Ra3 win in 5 half-moves
7 Ka5 draw
8 Ka7 draw
9 Kb1 draw
10 Kb2 draw
11 Kb6 draw
12 Kb7 draw
13 Rc3 draw
14 Rd3 draw
15 Re3 draw
16 Rf4 draw
17 Rf8 draw
18 Kb5 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves