r1bq1bnr/p1ppk3/2n5/1p2ppp1/N2PPNpP/P4P2/1PP5/1RBQKB1R b K - 0 12
FEN state: r1bq1bnr/p1ppk3/2n5/1p2ppp1/N2PPNpP/P4P2/1PP5/1RBQKB1R b K - 0 12 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7 and black king at e7. Black knight at c6. Black pawn at b5, black pawn at e5, black pawn at f5 and black pawn at g5. White knight at a4, white pawn at d4, white pawn at e4, white knight at f4, black pawn at g4 and white pawn at h4. White pawn at a3 and white pawn at f3. White pawn at b2 and white pawn at c2. White rook at b1, white bishop 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 0. Full move number is 12. Black to move.