rn3bnr/1pp4p/3NkpPB/pq1N4/3P4/7b/P1P1PPPR/RQ2KB2 w Q - 4 19
FEN state: rn3bnr/1pp4p/3NkpPB/pq1N4/3P4/7b/P1P1PPPR/RQ2KB2 w Q - 4 19 ; Best move: d6b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7 and black pawn at h7. White knight at d6, black king at e6, black pawn at f6, white pawn at g6 and white bishop at h6. Black pawn at a5, black queen at b5 and white knight at d5. White pawn at d4. Black bishop at h3. White pawn at a2, white pawn at c2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white queen at b1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 4. Full move number is 19. White to move.