rn2k2r/1p2qp2/1Bp4p/1P1p2p1/pnPPp3/4PQPb/Pb3P1P/RN1K1B1R b k d3 0 21
FEN state: rn2k2r/1p2qp2/1Bp4p/1P1p2p1/pnPPp3/4PQPb/Pb3P1P/RN1K1B1R b k d3 0 21 ; Best move: e4f3
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8 and black rook at h8. Black pawn at b7, black queen at e7 and black pawn at f7. White bishop at b6, black pawn at c6 and black pawn at h6. White pawn at b5, black pawn at d5 and black pawn at g5. Black pawn at a4, black knight at b4, white pawn at c4, white pawn at d4 and black pawn at e4. White pawn at e3, white queen at f3, white pawn at g3 and black bishop at h3. White pawn at a2, black bishop at b2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 21. En Passant Target Square: d3. Black to move.