r1b1kb1r/p2p2p1/n1p1pp1p/8/Pqp2Pn1/RPP1P1PN/3PQ2P/1NB1K2R w Kkq - 4 15
FEN state: r1b1kb1r/p2p2p1/n1p1pp1p/8/Pqp2Pn1/RPP1P1PN/3PQ2P/1NB1K2R w Kkq - 4 15 ; Best move: c3b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at g7. Black knight at a6, black pawn at c6, black pawn at e6, black pawn at f6 and black pawn at h6. White pawn at a4, black queen at b4, black pawn at c4, white pawn at f4 and black knight at g4. White rook at a3, white pawn at b3, white pawn at c3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at d2, white queen at e2 and white pawn at h2. White knight at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 4. Full move number is 15. White to move.