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

EGTB: win in 2 half-moves

# move score
1 Rh4 win in 1 half-moves
2 Rb6 draw
3 Rb7 draw
4 Rb8 draw
5 Kaa2 loss in 2 half-moves
6 Kaa4 loss in 2 half-moves
7 Kab2 loss in 2 half-moves
8 Kba2 loss in 2 half-moves
9 Kba4 loss in 2 half-moves
10 Kbb2 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kc3 loss in 2 half-moves
13 Kc4 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Rb5 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
20 Rg4 loss in 2 half-moves