rnn2br1/pp1k2p1/3p2Pp/2P2p2/q2Pp3/B1N2P1P/P3bK2/RQ3BNR w - - 0 21
FEN state: rnn2br1/pp1k2p1/3p2Pp/2P2p2/q2Pp3/B1N2P1P/P3bK2/RQ3BNR w - - 0 21 ; Best move: b1b7
The current state of the chess board is: Black rook at a8, black knight at b8, black knight at c8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at b7, black king at d7 and black pawn at g7. Black pawn at d6, white pawn at g6 and black pawn at h6. White pawn at c5 and black pawn at f5. Black queen at a4, white pawn at d4 and black pawn at e4. White bishop at a3, white knight at c3, white pawn at f3 and white pawn at h3. White pawn at a2, black bishop at e2 and white king at f2. White rook at a1, white queen at b1, 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.