2r3nr/p3p1kp/b1P1Q2b/qp3p2/1B1p1pPP/R1P2B2/3PP3/1N1K2NR w - - 4 21
FEN state: 2r3nr/p3p1kp/b1P1Q2b/qp3p2/1B1p1pPP/R1P2B2/3PP3/1N1K2NR w - - 4 21 ; Best move: a3a5
The current state of the chess board is: Black rook at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at e7, black king at g7 and black pawn at h7. Black bishop at a6, white pawn at c6, white queen at e6 and black bishop at h6. Black queen at a5, black pawn at b5 and black pawn at f5. White bishop at b4, black pawn at d4, black pawn at f4, white pawn at g4 and white pawn at h4. White rook at a3, white pawn at c3 and white bishop at f3. White pawn at d2 and white pawn at e2. White knight at b1, white king at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. White to move.