rnb1k1nr/ppq1b3/3p2p1/2pp1p1p/6P1/NP1K3P/P1PBPP2/R1Q2BNR b kq - 1 10
FEN state: rnb1k1nr/ppq1b3/3p2p1/2pp1p1p/6P1/NP1K3P/P1PBPP2/R1Q2BNR b kq - 1 10 ; Best move: c5c4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black queen at c7 and black bishop at e7. Black pawn at d6 and black pawn at g6. Black pawn at c5, black pawn at d5, black pawn at f5 and black pawn at h5. White pawn at g4. White knight at a3, white pawn at b3, white king at d3 and white pawn at h3. White pawn at a2, white pawn at c2, white bishop at d2, white pawn at e2 and white pawn at f2. White rook at a1, white queen at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 10. Black to move.