1nb2bn1/r2kp1P1/1p1q4/2P2p1r/1p1Q4/B6p/P2PP1PP/1R2KBNR w - - 0 21
FEN state: 1nb2bn1/r2kp1P1/1p1q4/2P2p1r/1p1Q4/B6p/P2PP1PP/1R2KBNR w - - 0 21 ; Best move: d4d6
The current state of the chess board is: Black knight at b8, black bishop at c8, black bishop at f8 and black knight at g8. Black rook at a7, black king at d7, black pawn at e7 and white pawn at g7. Black pawn at b6 and black queen at d6. White pawn at c5, black pawn at f5 and black rook at h5. Black pawn at b4 and white queen at d4. White bishop at a3 and black pawn at h3. White pawn at a2, white pawn at d2, white pawn at e2, white pawn at g2 and white pawn at h2. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.