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

EGTB: win in 6 half-moves

# move score
1 Kbb2 win in 5 half-moves
2 Ra4 draw
3 Rb3 draw
4 Rb5 draw
5 Rb6 draw
6 Rb7 draw
7 Rb8 draw
8 Rg4 draw
9 Rh4 draw
10 Kaa2 loss in 2 half-moves
11 Kab2 loss in 2 half-moves
12 Kba2 loss in 2 half-moves
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf4 loss in 2 half-moves