r1q2bnr/p1pkp2p/np6/3p1pp1/3Pb3/1P3NP1/P1PQPPBP/RNB1K2R w KQ - 0 10
FEN state: r1q2bnr/p1pkp2p/np6/3p1pp1/3Pb3/1P3NP1/P1PQPPBP/RNB1K2R w KQ - 0 10 ; Best move: f3e5
The current state of the chess board is: Black rook at a8, black queen at c8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7, black king at d7, black pawn at e7 and black pawn at h7. Black knight at a6 and black pawn at b6. Black pawn at d5, black pawn at f5 and black pawn at g5. White pawn at d4 and black bishop at e4. White pawn at b3, white knight at f3 and white pawn at g3. White pawn at a2, white pawn at c2, white queen at d2, white pawn at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 10. White to move.