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 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Kbb1 draw
6 Kbc1 draw
7 Kcb1 draw
8 Kcc1 draw
9 Kd1 draw
10 Kd2 draw
11 Rb3 draw
12 Rf1 draw
13 Rf2 draw
14 Rf7 draw
15 Rg3 draw
16 Rh3 draw
17 Kbb3 loss in 2 half-moves
18 Kbc3 loss in 2 half-moves
19 Kcb3 loss in 2 half-moves
20 Kcc3 loss in 2 half-moves
21 Kd3 loss in 2 half-moves
22 Rc3 loss in 2 half-moves
23 Rd3 loss in 2 half-moves
24 Re3 loss in 2 half-moves
25 Rf4 loss in 2 half-moves
26 Rf5 loss in 2 half-moves
27 Rf6 loss in 2 half-moves
28 Rf8 loss in 2 half-moves