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 Kb4 draw
3 Kb6 draw
4 Kc6 draw
5 Ra7 draw
6 Rc8 draw
7 Ka4 loss in 4 half-moves
8 Ka5 loss in 4 half-moves
9 Ka6 loss in 4 half-moves
10 Kc4 loss in 4 half-moves
11 Kc5 loss in 4 half-moves
12 Rb7 loss in 4 half-moves
13 Rd7 loss in 4 half-moves
14 Rc2 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Rf7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves