rn1qkbnr/Nbp1p1p1/1p6/p2p1p1p/P4P1P/1P4PN/2PPPK2/1RBQ1BR1 b k - 1 15
FEN state: rn1qkbnr/Nbp1p1p1/1p6/p2p1p1p/P4P1P/1P4PN/2PPPK2/1RBQ1BR1 b k - 1 15 ; Best move: a8a7
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, black knight at g8 and black rook at h8. White knight at a7, black bishop at b7, black pawn at c7, black pawn at e7 and black pawn at g7. Black pawn at b6. Black pawn at a5, black pawn at d5, black pawn at f5 and black pawn at h5. White pawn at a4, white pawn at f4 and white pawn at h4. White pawn at b3, white pawn at g3 and white knight at h3. White pawn at c2, white pawn at d2, white pawn at e2 and white king at f2. White rook at b1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 15. Black to move.