rnb1kr2/p1pqp2p/1p5B/1B2np2/1P1Pp2P/8/P1P2P2/RN1QK1NR w KQq - 1 13
FEN state: rnb1kr2/p1pqp2p/1p5B/1B2np2/1P1Pp2P/8/P1P2P2/RN1QK1NR w KQq - 1 13 ; Best move: b5d7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at f8. Black pawn at a7, black pawn at c7, black queen at d7, black pawn at e7 and black pawn at h7. Black pawn at b6 and white bishop at h6. White bishop at b5, black knight at e5 and black pawn at f5. White pawn at b4, white pawn at d4, black pawn at e4 and white pawn at h4. White pawn at a2, white pawn at c2 and white pawn at f2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 1. Full move number is 13. White to move.