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

EGTB: win in 2 half-moves

# move score
1 Rc3 win in 1 half-moves
2 Kb6 draw
3 Kb8 draw
4 Ra8 draw
5 Kc7 loss in 8 half-moves
6 Rb8 loss in 8 half-moves
7 Ka6 loss in 4 half-moves
8 Ka7 loss in 4 half-moves
9 Ka8 loss in 4 half-moves
10 Kc6 loss in 4 half-moves
11 Rd8 loss in 4 half-moves
12 Re8 loss in 4 half-moves
13 Rc1 loss in 2 half-moves
14 Rc2 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves