rn1qkbr1/pb1pp1p1/1p3p2/2p4p/3P1NQ1/2P1P3/PP1BBPPP/RN3RK1 b q - 3 10
FEN state: rn1qkbr1/pb1pp1p1/1p3p2/2p4p/3P1NQ1/2P1P3/PP1BBPPP/RN3RK1 b q - 3 10 ; Best move: h5g4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at g7. Black pawn at b6 and black pawn at f6. Black pawn at c5 and black pawn at h5. White pawn at d4, white knight at f4 and white queen at g4. White pawn at c3 and white pawn at e3. White pawn at a2, white pawn at b2, white bishop at d2, white bishop at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white rook at f1 and white king at g1. Black queenside is the only castle move available. Half move number is 3. Full move number is 10. Black to move.