rn5b/p3pk1r/1p2bp1n/1Pp5/P5qp/2PP2P1/1BK1P2P/RNQ2BNR w - - 2 21
FEN state: rn5b/p3pk1r/1p2bp1n/1Pp5/P5qp/2PP2P1/1BK1P2P/RNQ2BNR w - - 2 21 ; Best move: f1h3
The current state of the chess board is: Black rook at a8, black knight at b8 and black bishop at h8. Black pawn at a7, black pawn at e7, black king at f7 and black rook at h7. Black pawn at b6, black bishop at e6, black pawn at f6 and black knight at h6. White pawn at b5 and black pawn at c5. White pawn at a4, black queen at g4 and black pawn at h4. White pawn at c3, white pawn at d3 and white pawn at g3. White bishop at b2, white king at c2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white queen 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 2. Full move number is 21. White to move.