rnbq1k2/pp1pn2r/2p3p1/4p1N1/1b2P2P/P2B4/1PPP1PPR/RNBQK3 w - - 0 18
FEN state: rnbq1k2/pp1pn2r/2p3p1/4p1N1/1b2P2P/P2B4/1PPP1PPR/RNBQK3 w - - 0 18 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black king at f8. Black pawn at a7, black pawn at b7, black pawn at d7, black knight at e7 and black rook at h7. Black pawn at c6 and black pawn at g6. Black pawn at e5 and white knight at g5. Black bishop at b4, white pawn at e4 and white pawn at h4. White pawn at a3 and white bishop at d3. White pawn at b2, white pawn at c2, white pawn at d2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 18. White to move.