1rbqkbnr/2pp1p2/p3p1pp/8/PB1n1P1P/6P1/1PP1P3/RNKQ1BNR w k - 0 12
FEN state: 1rbqkbnr/2pp1p2/p3p1pp/8/PB1n1P1P/6P1/1PP1P3/RNKQ1BNR w k - 0 12 ; Best move: b4f8
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black pawn at d7 and black pawn at f7. Black pawn at a6, black pawn at e6, black pawn at g6 and black pawn at h6. White pawn at a4, white bishop at b4, black knight at d4, white pawn at f4 and white pawn at h4. White pawn at g3. White pawn at b2, white pawn at c2 and white pawn at e2. White rook at a1, white knight at b1, white king at c1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 12. White to move.