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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Rb3 draw
3 Rc2 draw
4 Rd2 draw
5 Re2 draw
6 Rg2 draw
7 Kaa4 loss in 2 half-moves
8 Kaa6 loss in 2 half-moves
9 Kab4 loss in 2 half-moves
10 Kab6 loss in 2 half-moves
11 Kba4 loss in 2 half-moves
12 Kba6 loss in 2 half-moves
13 Kbb4 loss in 2 half-moves
14 Kbb6 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Kc5 loss in 2 half-moves
17 Kc6 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rh2 loss in 2 half-moves