r1b1q1r1/1pp1n1kp/p4p2/3p1P2/1b5P/3P1p2/P1PNQ3/R1B1KBNR w KQ - 0 21
FEN state: r1b1q1r1/1pp1n1kp/p4p2/3p1P2/1b5P/3P1p2/P1PNQ3/R1B1KBNR w KQ - 0 21 ; Best move: g1f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at e8 and black rook at g8. Black pawn at b7, black pawn at c7, black knight at e7, black king at g7 and black pawn at h7. Black pawn at a6 and black pawn at f6. Black pawn at d5 and white pawn at f5. Black bishop at b4 and white pawn at h4. White pawn at d3 and black pawn at f3. White pawn at a2, white pawn at c2, white knight at d2 and white queen at e2. White rook at a1, white bishop at c1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 21. White to move.