1rbqkr2/p1pp1ppp/5n2/np2pP2/1b5P/3PP1P1/P1PQN3/RNB1KB1R w Q - 0 12
FEN state: 1rbqkr2/p1pp1ppp/5n2/np2pP2/1b5P/3PP1P1/P1PQN3/RNB1KB1R w Q - 0 12 ; Best move: d2b4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at f8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at f6. Black knight at a5, black pawn at b5, black pawn at e5 and white pawn at f5. Black bishop at b4 and white pawn at h4. White pawn at d3, white pawn at e3 and white pawn at g3. White pawn at a2, white pawn at c2, white queen at d2 and white knight at e2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White queenside is the only castle move available. Half move number is 0. Full move number is 12. White to move.