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

EGTB: win in 4 half-moves

# move score
1 Rf1 win in 3 half-moves
2 Rgb1 win in 3 half-moves
3 Rb2 draw
4 Rb3 draw
5 Rb5 draw
6 Rb6 draw
7 Rbb1 draw
8 Rd1 draw
9 Rd4 draw
10 Rf4 draw
11 Ra1 loss in 2 half-moves
12 Ra4 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh4 loss in 2 half-moves