r1b2bn1/p2kpppr/n1qp4/1B4N1/1P1pQP1p/P1P1P2P/3PK1P1/R1B4R w - - 7 21
FEN state: r1b2bn1/p2kpppr/n1qp4/1B4N1/1P1pQP1p/P1P1P2P/3PK1P1/R1B4R w - - 7 21 ; Best move: e4c6
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black king at d7, black pawn at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black knight at a6, black queen at c6 and black pawn at d6. White bishop at b5 and white knight at g5. White pawn at b4, black pawn at d4, white queen at e4, white pawn at f4 and black pawn at h4. White pawn at a3, white pawn at c3, white pawn at e3 and white pawn at h3. White pawn at d2, white king at e2 and white pawn at g2. White rook at a1, white bishop at c1 and white rook at h1. Both players have exhausted their castles. Half move number is 7. Full move number is 21. White to move.