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

EGTB: win in 6 half-moves

# move score
1 Rb1 win in 5 half-moves
2 Ra1 draw
3 Re7 draw
4 Rf1 draw
5 Kaa2 loss in 2 half-moves
6 Kaa4 loss in 2 half-moves
7 Kab2 loss in 2 half-moves
8 Kab4 loss in 2 half-moves
9 Kba2 loss in 2 half-moves
10 Kba4 loss in 2 half-moves
11 Kbb2 loss in 2 half-moves
12 Kbb4 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Rc1 loss in 2 half-moves
17 Rd1 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Re3 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Re5 loss in 2 half-moves
22 Re6 loss in 2 half-moves
23 Re8 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves