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

EGTB: win in 2 half-moves

# move score
1 Rc1 win in 1 half-moves
2 Rc3 draw
3 Rc4 draw
4 Rc5 draw
5 Kc7 loss in 10 half-moves
6 Kd7 loss in 2 half-moves
7 Ke7 loss in 2 half-moves
8 Ke8 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rc6 loss in 2 half-moves
13 Rc7 loss in 2 half-moves