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 Kc2 draw
3 Rc2 draw
4 Rc7 draw
5 Rc8 draw
6 Re3 draw
7 Kc1 loss in 2 half-moves
8 Ra3 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rc4 loss in 2 half-moves
11 Rc5 loss in 2 half-moves
12 Rc6 loss in 2 half-moves
13 Rd3 loss in 2 half-moves
14 Rf3 loss in 2 half-moves
15 Rg3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves
17 Kaa2 loss in 1 half-moves
18 Kab2 loss in 1 half-moves
19 Kba2 loss in 1 half-moves
20 Kbb2 loss in 1 half-moves