r1b1kb1r/4pp1p/p1pp3n/1pB3pP/P7/NPq1P1PB/n1PP1P2/2Q1K1NR w k - 4 16
FEN state: r1b1kb1r/4pp1p/p1pp3n/1pB3pP/P7/NPq1P1PB/n1PP1P2/2Q1K1NR w k - 4 16 ; Best move: d2c3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black pawn at c6, black pawn at d6 and black knight at h6. Black pawn at b5, white bishop at c5, black pawn at g5 and white pawn at h5. White pawn at a4. White knight at a3, white pawn at b3, black queen at c3, white pawn at e3, white pawn at g3 and white bishop at h3. Black knight at a2, white pawn at c2, white pawn at d2 and white pawn at f2. White queen at c1, white king at e1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 4. Full move number is 16. White to move.