1n1qkbnr/3p2p1/rp6/1Pp4p/p1P1bpN1/PQB3P1/3PPP1P/RN2KB1R w KQk - 3 21
FEN state: 1n1qkbnr/3p2p1/rp6/1Pp4p/p1P1bpN1/PQB3P1/3PPP1P/RN2KB1R w KQk - 3 21 ; Best move: b3b2
The current state of the chess board is: Black knight at b8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at d7 and black pawn at g7. Black rook at a6 and black pawn at b6. White pawn at b5, black pawn at c5 and black pawn at h5. Black pawn at a4, white pawn at c4, black bishop at e4, black pawn at f4 and white knight at g4. White pawn at a3, white queen at b3, white bishop at c3 and white pawn at g3. White pawn at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 3. Full move number is 21. White to move.