rq2kb1r/2pbnpp1/p1npp2p/1p4B1/N2P4/P1P2NPP/1P2PP2/R2QKB1R w KQkq - 0 10
FEN state: rq2kb1r/2pbnpp1/p1npp2p/1p4B1/N2P4/P1P2NPP/1P2PP2/R2QKB1R w KQkq - 0 10 ; Best move: a4c5
The current state of the chess board is: Black rook at a8, black queen at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black bishop at d7, black knight at e7, black pawn at f7 and black pawn at g7. Black pawn at a6, black knight at c6, black pawn at d6, black pawn at e6 and black pawn at h6. Black pawn at b5 and white bishop at g5. White knight at a4 and white pawn at d4. White pawn at a3, white pawn at c3, white knight at f3, white pawn at g3 and white pawn at h3. White pawn at b2, white pawn at e2 and white pawn at f2. White rook at a1, white queen at d1, 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. White to move.