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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 R1h2 draw
3 R1h3 draw
4 R4h2 draw
5 R4h3 draw
6 Rb4 draw
7 Rf1 draw
8 Rf4 draw
9 Rg1 draw
10 Rg4 draw
11 Rh5 draw
12 Ra1 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Rc1 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re1 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rh6 loss in 2 half-moves
21 Rh7 loss in 2 half-moves
22 Rh8 loss in 2 half-moves