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

EGTB: loss in 1 half-moves

# move score
1 Kaxb3 loss in 2 half-moves
2 Kcxb3 loss in 2 half-moves
3 Rxb3 loss in 2 half-moves
4 Rxc7 loss in 2 half-moves