rn1q1br1/p1ppp3/b4p2/1p3kp1/1P3P1p/P1P1P3/3PN1PP/RNBK1B1R w - - 0 19
FEN state: rn1q1br1/p1ppp3/b4p2/1p3kp1/1P3P1p/P1P1P3/3PN1PP/RNBK1B1R w - - 0 19 ; Best move: a3a4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at c7, black pawn at d7 and black pawn at e7. Black bishop at a6 and black pawn at f6. Black pawn at b5, black king at f5 and black pawn at g5. White pawn at b4, white pawn at f4 and black pawn at h4. White pawn at a3, white pawn at c3 and white pawn at e3. White pawn at d2, white knight at e2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 19. White to move.