1q2k2r/1pp1npb1/r6p/1N1ppbP1/Ppn1P1P1/7P/R1PP2B1/2B1QKNR w k - 0 18
FEN state: 1q2k2r/1pp1npb1/r6p/1N1ppbP1/Ppn1P1P1/7P/R1PP2B1/2B1QKNR w k - 0 18 ; Best move: g4f5
The current state of the chess board is: Black queen at b8, black king at e8 and black rook at h8. Black pawn at b7, black pawn at c7, black knight at e7, black pawn at f7 and black bishop at g7. Black rook at a6 and black pawn at h6. White knight at b5, black pawn at d5, black pawn at e5, black bishop at f5 and white pawn at g5. White pawn at a4, black pawn at b4, black knight at c4, white pawn at e4 and white pawn at g4. White pawn at h3. White rook at a2, white pawn at c2, white pawn at d2 and white bishop at g2. White bishop at c1, white queen at e1, white king at f1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 18. White to move.