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

EGTB: loss in 9 half-moves

# move score
1 Rf2 loss in 8 half-moves
2 Rf5 loss in 8 half-moves
3 f5 loss in 2 half-moves
4 Ra4 loss in 2 half-moves
5 Rc4 loss in 2 half-moves
6 Rd4 loss in 2 half-moves
7 Re4 loss in 2 half-moves
8 Rf1 loss in 2 half-moves
9 Rf3 loss in 2 half-moves
10 Rg4 loss in 2 half-moves
11 Rh4 loss in 2 half-moves
12 b4 loss in 1 half-moves
13 Rb4 loss in 1 half-moves