3qkbnr/p4pp1/2rpp2p/1pp2b2/Nn6/1PKP4/PBPNPPPP/R3QB1R w k - 0 13
FEN state: 3qkbnr/p4pp1/2rpp2p/1pp2b2/Nn6/1PKP4/PBPNPPPP/R3QB1R w k - 0 13 ; Best move: d2c4
The current state of the chess board is: Black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at f7 and black pawn at g7. Black rook at c6, black pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at b5, black pawn at c5 and black bishop at f5. White knight at a4 and black knight at b4. White pawn at b3, white king at c3 and white pawn at d3. White pawn at a2, white bishop at b2, white pawn at c2, white knight at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white queen at e1, 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 13. White to move.