1rb2b1r/ppp1k1p1/n4n1p/PB1pN3/5pPP/1Pq2P2/7K/R1B1Q1NR w - - 2 21
FEN state: 1rb2b1r/ppp1k1p1/n4n1p/PB1pN3/5pPP/1Pq2P2/7K/R1B1Q1NR w - - 2 21 ; Best move: e1c3
The current state of the chess board is: Black rook at b8, black bishop at c8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at e7 and black pawn at g7. Black knight at a6, black knight at f6 and black pawn at h6. White pawn at a5, white bishop at b5, black pawn at d5 and white knight at e5. Black pawn at f4, white pawn at g4 and white pawn at h4. White pawn at b3, black queen at c3 and white pawn at f3. White king at h2. White rook at a1, white bishop at c1, white queen at e1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.