r1bqk1nr/p2n1p1p/1p2p2b/2p5/P2B2p1/1PN4P/2PPPPP1/1R2KBNR b Kkq - 1 10
FEN state: r1bqk1nr/p2n1p1p/1p2p2b/2p5/P2B2p1/1PN4P/2PPPPP1/1R2KBNR b Kkq - 1 10 ; Best move: c5d4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black knight at d7, black pawn at f7 and black pawn at h7. Black pawn at b6, black pawn at e6 and black bishop at h6. Black pawn at c5. White pawn at a4, white bishop at d4 and black pawn at g4. White pawn at b3, white knight at c3 and white pawn at h3. White pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move.