r1b1kb2/1pQ1pp1r/p6p/3p4/2qPP1n1/N5B1/PPPK1PPP/3R1BNR b q - 2 13
FEN state: r1b1kb2/1pQ1pp1r/p6p/3p4/2qPP1n1/N5B1/PPPK1PPP/3R1BNR b q - 2 13 ; Best move: c4c7
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at b7, white queen at c7, black pawn at e7, black pawn at f7 and black rook at h7. Black pawn at a6 and black pawn at h6. Black pawn at d5. Black queen at c4, white pawn at d4, white pawn at e4 and black knight at g4. White knight at a3 and white bishop at g3. White pawn at a2, white pawn at b2, white pawn at c2, white king at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at d1, white bishop at f1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.