r4bnr/1pp1kppp/n2p4/p3N3/1P2B1P1/3P3b/q1PBPP2/RN1QK2R b KQ - 2 13
FEN state: r4bnr/1pp1kppp/n2p4/p3N3/1P2B1P1/3P3b/q1PBPP2/RN1QK2R b KQ - 2 13 ; Best move: a2a1
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6 and black pawn at d6. Black pawn at a5 and white knight at e5. White pawn at b4, white bishop at e4 and white pawn at g4. White pawn at d3 and black bishop at h3. Black queen at a2, white pawn at c2, white bishop at d2, white pawn at e2 and white pawn at f2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 13. Black to move.