r1bq1knr/1p2bp1p/2p3p1/1P1p1p2/p1B2P2/B1PnP3/P2P2PP/RN3KNR w - - 0 13
FEN state: r1bq1knr/1p2bp1p/2p3p1/1P1p1p2/p1B2P2/B1PnP3/P2P2PP/RN3KNR w - - 0 13 ; Best move: c4d3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black pawn at b7, black bishop at e7, black pawn at f7 and black pawn at h7. Black pawn at c6 and black pawn at g6. White pawn at b5, black pawn at d5 and black pawn at f5. Black pawn at a4, white bishop at c4 and white pawn at f4. White bishop at a3, white pawn at c3, black knight at d3 and white pawn at e3. White pawn at a2, white pawn at d2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. White to move.