r1bqk2r/pp2b1pp/P1p1p2n/6B1/1n1p1N2/1P3P2/2PPP1PP/RNQ1KB1R b Kkq - 2 13
FEN state: r1bqk2r/pp2b1pp/P1p1p2n/6B1/1n1p1N2/1P3P2/2PPP1PP/RNQ1KB1R b Kkq - 2 13 ; Best move: e7g5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at e7, black pawn at g7 and black pawn at h7. White pawn at a6, black pawn at c6, black pawn at e6 and black knight at h6. White bishop at g5. Black knight at b4, black pawn at d4 and white knight at f4. White pawn at b3 and white pawn at f3. White pawn at c2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 13. Black to move.