r2qkb2/1ppbppp1/p2p3n/3N3P/P1n3r1/RP6/Q2PPPBP/2B1K1NR w Kq - 3 13
FEN state: r2qkb2/1ppbppp1/p2p3n/3N3P/P1n3r1/RP6/Q2PPPBP/2B1K1NR w Kq - 3 13 ; Best move: b3c4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at b7, black pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at a6, black pawn at d6 and black knight at h6. White knight at d5 and white pawn at h5. White pawn at a4, black knight at c4 and black rook at g4. White rook at a3 and white pawn at b3. White queen at a2, white pawn at d2, white pawn at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 3. Full move number is 13. White to move.