rnb1k3/1pp1b1p1/p2qpr1p/3p2P1/PP2p2P/2PP1Pn1/R1Q5/1N2KBNR w Kq - 2 21
FEN state: rnb1k3/1pp1b1p1/p2qpr1p/3p2P1/PP2p2P/2PP1Pn1/R1Q5/1N2KBNR w Kq - 2 21 ; Best move: g5f6
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8 and black king at e8. Black pawn at b7, black pawn at c7, black bishop at e7 and black pawn at g7. Black pawn at a6, black queen at d6, black pawn at e6, black rook at f6 and black pawn at h6. Black pawn at d5 and white pawn at g5. White pawn at a4, white pawn at b4, black pawn at e4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at f3 and black knight at g3. White rook at a2 and white queen at c2. White knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 2. Full move number is 21. White to move.