rn2k1nr/2pq3p/p4ppb/p2pp3/P3P1b1/1PP2N2/RB1PRP1P/1N1Q2K1 w kq - 6 18
FEN state: rn2k1nr/2pq3p/p4ppb/p2pp3/P3P1b1/1PP2N2/RB1PRP1P/1N1Q2K1 w kq - 6 18 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black knight at g8 and black rook at h8. Black pawn at c7, black queen at d7 and black pawn at h7. Black pawn at a6, black pawn at f6, black pawn at g6 and black bishop at h6. Black pawn at a5, black pawn at d5 and black pawn at e5. White pawn at a4, white pawn at e4 and black bishop at g4. White pawn at b3, white pawn at c3 and white knight at f3. White rook at a2, white bishop at b2, white pawn at d2, white rook at e2, white pawn at f2 and white pawn at h2. White knight at b1, white queen at d1 and white king at g1. Black kingside and black queenside castles are available. Half move number is 6. Full move number is 18. White to move.