r1b1k3/1pp2p2/1Nnqpn1p/p1b3N1/P1P1P1p1/5P2/RP1P2PP/2BK1BR1 w - - 3 21
FEN state: r1b1k3/1pp2p2/1Nnqpn1p/p1b3N1/P1P1P1p1/5P2/RP1P2PP/2BK1BR1 w - - 3 21 ; Best move: b6a8
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black pawn at b7, black pawn at c7 and black pawn at f7. White knight at b6, black knight at c6, black queen at d6, black pawn at e6, black knight at f6 and black pawn at h6. Black pawn at a5, black bishop at c5 and white knight at g5. White pawn at a4, white pawn at c4, white pawn at e4 and black pawn at g4. White pawn at f3. White rook at a2, white pawn at b2, white pawn at d2, white pawn at g2 and white pawn at h2. White bishop at c1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. White to move.