rnb1kbr1/p2pp1pp/B4p1n/q1p5/1p3PP1/P2PP3/RPP1Q2P/1NB1K1NR b Kq - 0 10
FEN state: rnb1kbr1/p2pp1pp/B4p1n/q1p5/1p3PP1/P2PP3/RPP1Q2P/1NB1K1NR b Kq - 0 10 ; Best move: b4b3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at d7, black pawn at e7, black pawn at g7 and black pawn at h7. White bishop at a6, black pawn at f6 and black knight at h6. Black queen at a5 and black pawn at c5. Black pawn at b4, white pawn at f4 and white pawn at g4. White pawn at a3, white pawn at d3 and white pawn at e3. White rook at a2, white pawn at b2, white pawn at c2, white queen at e2 and white pawn at h2. White knight at b1, 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 0. Full move number is 10. Black to move.