r1b2br1/B1qkp2p/1pp2pN1/8/1p2PP2/7P/P1K3P1/2R2BNR w - - 0 21
FEN state: r1b2br1/B1qkp2p/1pp2pN1/8/1p2PP2/7P/P1K3P1/2R2BNR w - - 0 21 ; Best move: f4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black rook at g8. White bishop at a7, black queen at c7, black king at d7, black pawn at e7 and black pawn at h7. Black pawn at b6, black pawn at c6, black pawn at f6 and white knight at g6. Black pawn at b4, white pawn at e4 and white pawn at f4. White pawn at h3. White pawn at a2, white king at c2 and white pawn at g2. White rook at c1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.