r1b3nr/pp1pqkb1/n1p1pp1p/3P2p1/1PPQ2P1/4P2N/P4P1P/RNB1KB1R w KQ - 5 12
FEN state: r1b3nr/pp1pqkb1/n1p1pp1p/3P2p1/1PPQ2P1/4P2N/P4P1P/RNB1KB1R w KQ - 5 12 ; Best move: d5d6
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at d7, black queen at e7, black king at f7 and black bishop at g7. Black knight at a6, black pawn at c6, black pawn at e6, black pawn at f6 and black pawn at h6. White pawn at d5 and black pawn at g5. White pawn at b4, white pawn at c4, white queen at d4 and white pawn at g4. White pawn at e3 and white knight at h3. White pawn at a2, white pawn at f2 and white pawn at h2. 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 kingside and white queenside castles are available. Half move number is 5. Full move number is 12. White to move.