rnb1q2r/p2k3p/6p1/1p1Pp3/P1K1np2/b3P2N/1PP2P1P/R1BR2Q1 w - - 0 19
FEN state: rnb1q2r/p2k3p/6p1/1p1Pp3/P1K1np2/b3P2N/1PP2P1P/R1BR2Q1 w - - 0 19 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at e8 and black rook at h8. Black pawn at a7, black king at d7 and black pawn at h7. Black pawn at g6. Black pawn at b5, white pawn at d5 and black pawn at e5. White pawn at a4, white king at c4, black knight at e4 and black pawn at f4. Black bishop at a3, white pawn at e3 and white knight at h3. White pawn at b2, white pawn at c2, white pawn at f2 and white pawn at h2. White rook at a1, white bishop at c1, white rook at d1 and white queen at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 19. White to move.