r1q1k2r/2p2p2/1p1pp1pp/p2Pn3/1P1b2P1/N2Q2Pb/PBP1P2P/2R1KB1R w kq - 3 18
FEN state: r1q1k2r/2p2p2/1p1pp1pp/p2Pn3/1P1b2P1/N2Q2Pb/PBP1P2P/2R1KB1R w kq - 3 18 ; Best move: d3d4
The current state of the chess board is: Black rook at a8, black queen at c8, black king at e8 and black rook at h8. Black pawn at c7 and black pawn at f7. Black pawn at b6, black pawn at d6, black pawn at e6, black pawn at g6 and black pawn at h6. Black pawn at a5, white pawn at d5 and black knight at e5. White pawn at b4, black bishop at d4 and white pawn at g4. White knight at a3, white queen at d3, white pawn at g3 and black bishop at h3. White pawn at a2, white bishop at b2, white pawn at c2, white pawn at e2 and white pawn at h2. White rook at c1, white king at e1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 18. White to move.