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

EGTB: win in 1 half-moves

# move score
1 Rxf1 win in 1 half-moves
2 Rxc7 win in 35 half-moves
3 Kcxc7 loss in 2 half-moves
4 Kdxc7 loss in 2 half-moves