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

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Kaa7 draw
3 Kab7 draw
4 Kba7 draw
5 Kbb7 draw
6 Kc7 draw
7 Kc8 draw
8 Ra5 draw
9 Rb5 draw
10 Rc1 draw
11 Rc6 draw
12 Rc7 draw
13 Rg5 draw
14 Rh5 draw
15 Rc2 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rf5 loss in 2 half-moves