1rb1k1n1/3pr3/1pp3pp/1B3pN1/p2p3P/b3P3/4KPPR/n1B3N1 w - - 2 20
FEN state: 1rb1k1n1/3pr3/1pp3pp/1B3pN1/p2p3P/b3P3/4KPPR/n1B3N1 w - - 2 20 ; Best move: c1a3
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8 and black knight at g8. Black pawn at d7 and black rook at e7. Black pawn at b6, black pawn at c6, black pawn at g6 and black pawn at h6. White bishop at b5, black pawn at f5 and white knight at g5. Black pawn at a4, black pawn at d4 and white pawn at h4. Black bishop at a3 and white pawn at e3. White king at e2, white pawn at f2, white pawn at g2 and white rook at h2. Black knight at a1, white bishop at c1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.