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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 Rc5 draw
3 Rc6 draw
4 Rc7 draw
5 Rc8 draw
6 Rd4 draw
7 Ra1 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rc2 loss in 2 half-moves
12 Rc3 loss in 2 half-moves
13 Rcc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rg4 loss in 2 half-moves
19 Rgc1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh4 loss in 2 half-moves