rnb1k2r/3pp2p/p4p1b/2p1n3/3NQpP1/P6P/3PB2N/R1B1K2R w KQq - 3 21
FEN state: rnb1k2r/3pp2p/p4p1b/2p1n3/3NQpP1/P6P/3PB2N/R1B1K2R w KQq - 3 21 ; Best move: e4a8
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at d7, black pawn at e7 and black pawn at h7. Black pawn at a6, black pawn at f6 and black bishop at h6. Black pawn at c5 and black knight at e5. White knight at d4, white queen at e4, black pawn at f4 and white pawn at g4. White pawn at a3 and white pawn at h3. White pawn at d2, white bishop at e2 and white knight at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 21. White to move.