rnb1kbr1/1p6/p2p2p1/4pP1p/qPP1PPR1/P2P3P/3N4/RNB2K1Q w - - 1 21
FEN state: rnb1kbr1/1p6/p2p2p1/4pP1p/qPP1PPR1/P2P3P/3N4/RNB2K1Q w - - 1 21 ; Best move: b1c3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at b7. Black pawn at a6, black pawn at d6 and black pawn at g6. Black pawn at e5, white pawn at f5 and black pawn at h5. Black queen at a4, white pawn at b4, white pawn at c4, white pawn at e4, white pawn at f4 and white rook at g4. White pawn at a3, white pawn at d3 and white pawn at h3. White knight at d2. White rook at a1, white knight at b1, white bishop at c1, white king at f1 and white queen at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.