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 Ka7 draw
3 Kb8 draw
4 Ra1 draw
5 Rb1 draw
6 Re5 draw
7 Re6 draw
8 Re7 draw
9 Re8 draw
10 Rf1 draw
11 Kb7 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Re4 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rh1 loss in 2 half-moves