r1b2kr1/3pNqpp/p1nb1p1n/1pP1p3/4P3/3P1PPN/P1PB3P/2RQKB1R b K - 1 13
FEN state: r1b2kr1/3pNqpp/p1nb1p1n/1pP1p3/4P3/3P1PPN/P1PB3P/2RQKB1R b K - 1 13 ; Best move: d6e7
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8 and black rook at g8. Black pawn at d7, white knight at e7, black queen at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black knight at c6, black bishop at d6, black pawn at f6 and black knight at h6. Black pawn at b5, white pawn at c5 and black pawn at e5. White pawn at e4. White pawn at d3, white pawn at f3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at c2, white bishop at d2 and white pawn at h2. White rook at c1, white queen at d1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 1. Full move number is 13. Black to move.