r3kb1r/1p2pp1p/2p3pB/p2p3n/1qP5/P1NP1P1b/1KQ1P1PP/R4BNR w kq - 5 15
FEN state: r3kb1r/1p2pp1p/2p3pB/p2p3n/1qP5/P1NP1P1b/1KQ1P1PP/R4BNR w kq - 5 15 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, black pawn at g6 and white bishop at h6. Black pawn at a5, black pawn at d5 and black knight at h5. Black queen at b4 and white pawn at c4. White pawn at a3, white knight at c3, white pawn at d3, white pawn at f3 and black bishop at h3. White king at b2, white queen at c2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, 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 5. Full move number is 15. White to move.