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 Ra3 draw
3 Re1 draw
4 Rg1 draw
5 Rh1 draw
6 Ka2 loss in 2 half-moves
7 Ka3 loss in 2 half-moves
8 Ka6 loss in 2 half-moves
9 Kaa4 loss in 2 half-moves
10 Kab4 loss in 2 half-moves
11 Kb2 loss in 2 half-moves
12 Kb5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kba4 loss in 2 half-moves
15 Kbb4 loss in 2 half-moves
16 Kc2 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc4 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Rf1 loss in 2 half-moves