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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Rb7 draw
3 Rc3 draw
4 Rc6 draw
5 Rd7 draw
6 Rh7 draw
7 Ke1 loss in 2 half-moves
8 Ke2 loss in 2 half-moves
9 Kf2 loss in 2 half-moves
10 Kg1 loss in 2 half-moves
11 Kg2 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Re7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves