r1b2b1r/pp4pp/n1pk3n/3ppP2/QPBP3P/B4P2/P2P2P1/RN2K1NR b KQ - 0 13
FEN state: r1b2b1r/pp4pp/n1pk3n/3ppP2/QPBP3P/B4P2/P2P2P1/RN2K1NR b KQ - 0 13 ; Best move: d5c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at c6, black king at d6 and black knight at h6. Black pawn at d5, black pawn at e5 and white pawn at f5. White queen at a4, white pawn at b4, white bishop at c4, white pawn at d4 and white pawn at h4. White bishop at a3 and white pawn at f3. White pawn at a2, white pawn at d2 and white pawn at g2. White rook at a1, white knight at b1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 13. Black to move.