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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Ka2 draw
3 Kb1 draw
4 Kb2 draw
5 Kb5 draw
6 Kb6 draw
7 Kb7 draw
8 Kc5 draw
9 Kc7 draw
10 Rb3 draw
11 Rc3 draw
12 Rd3 draw
13 Re3 draw
14 Rf1 draw
15 Rf2 draw
16 Rf4 draw
17 Rf8 draw
18 Kd5 loss in 2 half-moves
19 Kd6 loss in 2 half-moves
20 Kd7 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rf6 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rg3 loss in 2 half-moves
25 Rh3 loss in 2 half-moves