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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rd1 draw
3 Rg1 draw
4 Rh1 draw
5 Kaa4 loss in 2 half-moves
6 Kaa6 loss in 2 half-moves
7 Kab4 loss in 2 half-moves
8 Kab6 loss in 2 half-moves
9 Kba4 loss in 2 half-moves
10 Kba6 loss in 2 half-moves
11 Kbb4 loss in 2 half-moves
12 Kbb6 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Kc6 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rc1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves