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

EGTB: win in 4 half-moves

# move score
1 Kab8 win in 3 half-moves
2 Ra1 win in 3 half-moves
3 Rb1 win in 5 half-moves
4 Kaa6 draw
5 Kaa8 draw
6 Kab6 draw
7 Kba6 draw
8 Kbb6 draw
9 Rc2 draw
10 Rc3 draw
11 Rc4 draw
12 Rc6 draw
13 Rc8 draw
14 Rd1 draw
15 Kba8 loss in 2 half-moves
16 Kbb8 loss in 2 half-moves
17 Kc7 loss in 2 half-moves
18 Kc8 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rh1 loss in 2 half-moves
25 Kc6 loss in 1 half-moves