rn3bnr/pkp1p1p1/1p3p2/1q6/P1b4p/BP1P2NP/2P1PPP1/R2QKB1R b KQ - 7 15
FEN state: rn3bnr/pkp1p1p1/1p3p2/1q6/P1b4p/BP1P2NP/2P1PPP1/R2QKB1R b KQ - 7 15 ; Best move: b5d7
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at b7, black pawn at c7, black pawn at e7 and black pawn at g7. Black pawn at b6 and black pawn at f6. Black queen at b5. White pawn at a4, black bishop at c4 and black pawn at h4. White bishop at a3, white pawn at b3, white pawn at d3, white knight at g3 and white pawn at h3. White pawn at c2, white pawn at e2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 7. Full move number is 15. Black to move.