1rb1kbnr/pppp2p1/n4q1p/4pp2/5PP1/PP3N2/2PPPK1P/RNB1QB1R b k - 2 7
FEN state: 1rb1kbnr/pppp2p1/n4q1p/4pp2/5PP1/PP3N2/2PPPK1P/RNB1QB1R b k - 2 7 ; Best move: e5e4
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at g7. Black knight at a6, black queen at f6 and black pawn at h6. Black pawn at e5 and black pawn at f5. White pawn at f4 and white pawn at g4. White pawn at a3, white pawn at b3 and white knight at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at e1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 7. Black to move.