r1b1k1nr/p1Ppbp2/n5pp/1p2p3/q1P5/4PPPN/P2P3P/RNB1KB1R b KQkq - 0 10
FEN state: r1b1k1nr/p1Ppbp2/n5pp/1p2p3/q1P5/4PPPN/P2P3P/RNB1KB1R b KQkq - 0 10 ; Best move: b5c4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, white pawn at c7, black pawn at d7, black bishop at e7 and black pawn at f7. Black knight at a6, black pawn at g6 and black pawn at h6. Black pawn at b5 and black pawn at e5. Black queen at a4 and white pawn at c4. White pawn at e3, white pawn at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at d2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. Black to move.