r3kbn1/p1pbqp1r/npp3pp/4p3/4P3/N1PP1P2/PPQ3PP/1RB1K1NR w Kq - 8 12
FEN state: r3kbn1/p1pbqp1r/npp3pp/4p3/4P3/N1PP1P2/PPQ3PP/1RB1K1NR w Kq - 8 12 ; Best move: b2b4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at c7, black bishop at d7, black queen at e7, black pawn at f7 and black rook at h7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at g6 and black pawn at h6. Black pawn at e5. White pawn at e4. White knight at a3, white pawn at c3, white pawn at d3 and white pawn at f3. White pawn at a2, white pawn at b2, white queen at c2, white pawn at g2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 8. Full move number is 12. White to move.