rn3kr1/p4p2/qpn3p1/1Q3b1p/7P/3PP1PN/P1PK1P2/R1BN1B1R w - - 1 21
FEN state: rn3kr1/p4p2/qpn3p1/1Q3b1p/7P/3PP1PN/P1PK1P2/R1BN1B1R w - - 1 21 ; Best move: a2a4
The current state of the chess board is: Black rook at a8, black knight at b8, black king at f8 and black rook at g8. Black pawn at a7 and black pawn at f7. Black queen at a6, black pawn at b6, black knight at c6 and black pawn at g6. White queen at b5, black bishop at f5 and black pawn at h5. White pawn at h4. White pawn at d3, white pawn at e3, white pawn at g3 and white knight at h3. White pawn at a2, white pawn at c2, white king at d2 and white pawn at f2. White rook at a1, white bishop at c1, white knight at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.