rn1qkb1r/2p1pp2/p3bn1p/1p1p2p1/1P3P2/B1N1P1PP/P1PP4/R1Q1KBNR b KQkq - 0 13
FEN state: rn1qkb1r/2p1pp2/p3bn1p/1p1p2p1/1P3P2/B1N1P1PP/P1PP4/R1Q1KBNR b KQkq - 0 13 ; Best move: g5f4
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 h8. Black pawn at c7, black pawn at e7 and black pawn at f7. Black pawn at a6, black bishop at e6, black knight at f6 and black pawn at h6. Black pawn at b5, black pawn at d5 and black pawn at g5. White pawn at b4 and white pawn at f4. White bishop at a3, white knight at c3, white pawn at e3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at d2. White rook at a1, white queen at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.